Overall summary

summary
Operation Write Re-write Read Re-read Random read Random write Backwards read Record rewrite Strided Read Fwrite Frewrite Fread Freread
baelinemean val. 509.0 582.37 1263.85 1627.13 1446.88 617.39 1084.93 1189.03 1522.71 582.64 600.45 1173.28 1496.08
standard dev. 280.23 331.38 854.2 962.77 650.37 361.06 686.8 425.7 746.59 344.2 369.54 757.89 719.37
ci. min. 90% 489.83 559.7 1205.41 1561.27 1402.39 592.69 1037.95 1159.91 1471.63 559.09 575.17 1121.44 1446.87
ci. max. 90% 528.17 605.04 1322.28 1692.99 1491.37 642.09 1131.92 1218.15 1573.78 606.19 625.73 1225.13 1545.29
geom. mean 361.99 409.61 763.36 1282.73 1177.57 415.53 628.6 1107.45 1233.9 409.22 414.41 726.98 1220.54
median 583.18 653.07 1426.68 1610.05 1550.78 679.78 1240.97 1220.35 1568.21 634.72 640.58 1337.4 1609.51
first quartile 201.91 445.83 717.35 846.35 864.57 421.83 657.92 745.41 845.28 403.18 418.16 660.49 839.97
third quartile 707.46 821.17 1959.79 2137.53 1949.81 871.65 1640.89 1603.69 2047.81 825.97 863.95 1780.42 1968.9
minimum 47.66 59.97 66.96 77.66 20.9 19.45 12.72 298.95 27.65 62.02 60.0 67.07 77.77
maximum 925.64 1168.18 3906.25 7812.5 2776.87 1260.9 2232.86 1858.6 3671.34 1317.95 1738.29 2626.54 3149.91
set1mean val. 375.46 593.17 1476.27 1710.2 1509.63 671.04 1329.5 1223.83 1514.85 628.61 615.39 1397.62 1658.34
standard dev. 202.7 341.4 681.6 1099.14 712.59 403.83 565.59 432.55 733.08 387.99 373.89 597.87 954.51
ci. min. 90% 361.6 569.81 1429.65 1635.01 1460.88 643.41 1290.81 1194.24 1464.7 602.07 589.81 1356.72 1593.05
ci. max. 90% 389.33 616.52 1522.9 1785.39 1558.37 698.66 1368.2 1253.42 1564.99 655.15 640.97 1438.52 1723.64
geom. mean 245.08 345.33 1192.36 1306.98 1174.21 373.87 1096.9 1140.53 1204.66 369.88 366.4 1156.03 1305.71
median 452.1 710.6 1589.87 1663.72 1593.7 728.49 1437.65 1362.31 1581.69 682.01 696.94 1527.45 1656.98
first quartile 159.76 234.1 859.59 868.73 865.11 437.0 847.07 752.68 850.0 454.61 332.31 854.17 868.16
third quartile 525.68 853.72 1926.98 2184.45 2064.31 973.32 1795.06 1623.77 2041.47 902.86 865.02 1884.7 2170.17
minimum 13.4 12.03 55.0 60.49 7.64 5.92 25.2 483.13 17.08 12.54 11.92 57.72 62.42
maximum 641.96 1088.07 3899.63 7812.5 3033.97 1421.58 2338.48 1884.57 3671.34 1733.5 1682.51 2641.97 7812.5
linear regression slope 90% TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO
baseline set1 difference -22.48 % 8.81 % 11.44 % 3.33 % 2.77 % 7.17 % 15.85 % 11.63 % 0.86 % 7.45 % 8.8 % 14.21 % 2.95 %
ttest p-value 0.0 0.5846 0.0 0.1712 0.1175 0.0172 0.0 0.1676 0.8565 0.033 0.4938 0.0 0.0011
ttest equality DIFF SAME DIFF SAME SAME DIFF DIFF SAME SAME DIFF SAME DIFF DIFF

Write

iwrite_fs
Write File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 236.79 369.03 546.94 695.86 791.42 771.03 802.21 790.93 741.1 660.36 664.57 622.5 600.88 572.52 503.15 73.92 71.75 57.63 55.94
standard dev. 66.73 67.86 49.0 83.5 86.05 66.87 84.67 89.97 107.53 87.34 98.92 74.53 65.13 64.97 49.45 4.27 3.57 2.63 2.89
ci. min. 90% 158.26 323.57 521.54 659.26 758.15 747.64 774.95 763.96 710.82 637.09 639.51 604.46 585.75 554.23 489.23 72.71 70.75 56.89 55.13
ci. max. 90% 315.31 414.49 572.34 732.45 824.69 794.43 829.46 817.89 771.38 683.63 689.64 640.55 616.01 590.82 517.08 75.12 72.76 58.37 56.75
geom. mean 228.93 363.51 544.91 691.09 786.74 768.29 797.49 785.48 733.15 654.82 657.28 618.18 597.39 569.09 500.88 73.8 71.67 57.57 55.86
median 248.82 365.06 559.17 687.01 781.81 755.68 806.72 803.42 739.9 667.6 647.51 632.64 621.17 529.48 478.55 75.17 71.88 57.51 56.15
first quartile 201.91 345.86 512.24 656.97 747.33 713.51 756.66 743.94 671.97 617.76 595.52 554.7 540.2 520.99 466.18 69.96 69.38 56.06 54.68
third quartile 283.7 395.9 575.86 781.09 868.58 825.17 852.65 856.84 849.82 692.04 766.51 664.77 656.11 637.85 549.89 78.01 73.64 58.51 58.07
minimum 150.58 260.46 475.57 548.86 612.76 680.18 538.61 556.15 498.27 503.64 501.64 513.91 506.87 505.8 445.85 64.51 65.59 52.55 47.66
maximum 298.95 490.5 625.31 820.2 907.68 885.91 925.64 910.69 897.79 847.78 805.64 781.17 707.21 692.69 596.12 79.07 79.31 64.51 60.26
set1mean val. 236.79 369.03 546.94 695.86 791.42 771.03 802.21 790.93 741.1 660.36 664.57 622.5 600.88 572.52 503.15 73.92 71.75 57.63 55.94
standard dev. 66.73 67.86 49.0 83.5 86.05 66.87 84.67 89.97 107.53 87.34 98.92 74.53 65.13 64.97 49.45 4.27 3.57 2.63 2.89
ci. min. 90% 158.26 323.57 521.54 659.26 758.15 747.64 774.95 763.96 710.82 637.09 639.51 604.46 585.75 554.23 489.23 72.71 70.75 56.89 55.13
ci. max. 90% 315.31 414.49 572.34 732.45 824.69 794.43 829.46 817.89 771.38 683.63 689.64 640.55 616.01 590.82 517.08 75.12 72.76 58.37 56.75
geom. mean 228.93 363.51 544.91 691.09 786.74 768.29 797.49 785.48 733.15 654.82 657.28 618.18 597.39 569.09 500.88 73.8 71.67 57.57 55.86
median 248.82 365.06 559.17 687.01 781.81 755.68 806.72 803.42 739.9 667.6 647.51 632.64 621.17 529.48 478.55 75.17 71.88 57.51 56.15
first quartile 201.91 345.86 512.24 656.97 747.33 713.51 756.66 743.94 671.97 617.76 595.52 554.7 540.2 520.99 466.18 69.96 69.38 56.06 54.68
third quartile 283.7 395.9 575.86 781.09 868.58 825.17 852.65 856.84 849.82 692.04 766.51 664.77 656.11 637.85 549.89 78.01 73.64 58.51 58.07
minimum 150.58 260.46 475.57 548.86 612.76 680.18 538.61 556.15 498.27 503.64 501.64 513.91 506.87 505.8 445.85 64.51 65.59 52.55 47.66
maximum 298.95 490.5 625.31 820.2 907.68 885.91 925.64 910.69 897.79 847.78 805.64 781.17 707.21 692.69 596.12 79.07 79.31 64.51 60.26
baseline set1 difference 132.02 % 74.89 % 82.77 % 72.34 % 75.01 % 47.78 % 41.65 % 40.44 % 35.92 % 26.16 % 32.06 % 28.97 % 30.65 % 18.66 % 16.04 % -39.5 % 66.12 % 208.8 % 280.63 %
ttest p-value 0.0079 0.0001 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
ttest equality DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
iwrite_bs
Write Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 604.85 696.6 742.98 774.12 559.3 531.45 495.03 411.32 370.67 339.63 322.84 289.56 253.1
standard dev. 157.35 128.88 108.89 83.8 310.77 308.15 300.72 253.31 239.69 230.73 236.33 229.15 220.81
ci. min. 90% 568.3 665.39 715.38 751.79 492.25 462.56 425.16 349.98 309.93 278.17 256.29 220.88 182.02
ci. max. 90% 641.41 727.82 770.58 796.45 626.34 600.34 564.89 472.67 431.42 401.1 389.39 358.25 324.17
geom. mean 575.47 683.1 734.65 769.64 384.62 357.66 329.6 278.85 248.56 223.48 206.99 181.73 156.66
median 642.1 692.08 769.05 781.09 686.5 663.0 629.15 549.59 512.71 486.78 469.53 266.66 76.51
first quartile 575.86 638.47 667.89 693.64 78.94 78.43 76.06 73.99 69.49 69.23 69.63 64.8 63.44
third quartile 704.7 793.26 843.71 841.8 783.76 753.42 693.4 593.71 544.61 537.44 528.81 519.59 506.07
minimum 150.58 356.93 475.57 639.98 52.83 52.92 54.83 54.26 47.66 51.14 48.51 52.55 55.59
maximum 829.3 907.68 907.68 909.11 910.69 902.54 925.64 737.94 692.77 621.11 644.02 546.8 550.89
set1mean val. 604.85 696.6 742.98 774.12 559.3 531.45 495.03 411.32 370.67 339.63 322.84 289.56 253.1
standard dev. 157.35 128.88 108.89 83.8 310.77 308.15 300.72 253.31 239.69 230.73 236.33 229.15 220.81
ci. min. 90% 568.3 665.39 715.38 751.79 492.25 462.56 425.16 349.98 309.93 278.17 256.29 220.88 182.02
ci. max. 90% 641.41 727.82 770.58 796.45 626.34 600.34 564.89 472.67 431.42 401.1 389.39 358.25 324.17
geom. mean 575.47 683.1 734.65 769.64 384.62 357.66 329.6 278.85 248.56 223.48 206.99 181.73 156.66
median 642.1 692.08 769.05 781.09 686.5 663.0 629.15 549.59 512.71 486.78 469.53 266.66 76.51
first quartile 575.86 638.47 667.89 693.64 78.94 78.43 76.06 73.99 69.49 69.23 69.63 64.8 63.44
third quartile 704.7 793.26 843.71 841.8 783.76 753.42 693.4 593.71 544.61 537.44 528.81 519.59 506.07
minimum 150.58 356.93 475.57 639.98 52.83 52.92 54.83 54.26 47.66 51.14 48.51 52.55 55.59
maximum 829.3 907.68 907.68 909.11 910.69 902.54 925.64 737.94 692.77 621.11 644.02 546.8 550.89
baseline set1 difference 37.39 % 38.5 % 48.32 % 44.55 % 31.06 % 25.56 % 24.5 % 20.1 % 22.42 % 15.6 % 19.5 % -4.69 % -38.91 %
ttest p-value 0.0 0.0 0.0 0.0 0.0026 0.0145 0.0329 0.1111 0.1532 0.2394 0.2681 0.3749 0.481
ttest equality DIFF DIFF DIFF DIFF DIFF DIFF DIFF SAME SAME SAME SAME SAME SAME
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Re-write

rewrite_fs
Re-write File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 626.18 695.09 820.25 1014.91 1076.87 933.13 945.92 905.35 821.24 735.88 655.84 674.45 634.75 593.85 537.13 81.68 77.19 63.95 62.83
standard dev. 91.09 140.67 173.44 111.63 84.81 85.47 84.94 96.21 114.31 120.69 59.3 80.71 71.63 67.55 46.93 3.3 2.3 1.79 0.85
ci. min. 90% 519.0 600.87 730.34 965.99 1044.08 903.23 918.58 876.52 789.05 703.73 640.81 654.9 618.11 574.82 523.91 80.75 76.54 63.45 62.59
ci. max. 90% 733.37 789.31 910.17 1063.83 1109.66 963.03 973.27 934.19 853.42 768.03 670.87 694.0 651.39 612.87 550.34 82.6 77.83 64.45 63.07
geom. mean 621.45 681.3 800.93 1008.41 1073.44 929.42 942.15 900.23 813.43 725.34 652.95 669.62 630.74 590.27 535.21 81.6 77.15 63.93 62.83
median 601.84 741.95 842.86 1041.86 1116.43 939.91 954.29 892.16 803.57 736.94 679.86 680.62 649.55 558.5 511.71 82.44 77.54 63.92 62.85
first quartile 564.01 623.87 785.14 994.6 1024.78 878.5 903.92 858.34 742.87 665.71 641.96 594.75 560.55 538.85 504.9 81.29 75.88 63.2 62.22
third quartile 664.01 783.82 915.91 1091.89 1137.01 980.37 996.27 995.57 915.68 829.91 691.59 748.9 706.21 653.15 592.25 82.94 78.83 64.62 63.39
minimum 549.69 462.79 475.57 728.96 832.72 771.23 781.47 687.86 622.32 394.95 465.61 531.81 516.66 526.94 476.96 64.12 71.19 59.97 61.13
maximum 751.36 866.75 1043.47 1112.61 1160.93 1168.18 1097.06 1048.68 993.96 931.98 730.05 798.41 739.33 711.13 622.92 85.44 82.14 68.53 64.42
set1mean val. 626.18 695.09 820.25 1014.91 1076.87 933.13 945.92 905.35 821.24 735.88 655.84 674.45 634.75 593.85 537.13 81.68 77.19 63.95 62.83
standard dev. 91.09 140.67 173.44 111.63 84.81 85.47 84.94 96.21 114.31 120.69 59.3 80.71 71.63 67.55 46.93 3.3 2.3 1.79 0.85
ci. min. 90% 519.0 600.87 730.34 965.99 1044.08 903.23 918.58 876.52 789.05 703.73 640.81 654.9 618.11 574.82 523.91 80.75 76.54 63.45 62.59
ci. max. 90% 733.37 789.31 910.17 1063.83 1109.66 963.03 973.27 934.19 853.42 768.03 670.87 694.0 651.39 612.87 550.34 82.6 77.83 64.45 63.07
geom. mean 621.45 681.3 800.93 1008.41 1073.44 929.42 942.15 900.23 813.43 725.34 652.95 669.62 630.74 590.27 535.21 81.6 77.15 63.93 62.83
median 601.84 741.95 842.86 1041.86 1116.43 939.91 954.29 892.16 803.57 736.94 679.86 680.62 649.55 558.5 511.71 82.44 77.54 63.92 62.85
first quartile 564.01 623.87 785.14 994.6 1024.78 878.5 903.92 858.34 742.87 665.71 641.96 594.75 560.55 538.85 504.9 81.29 75.88 63.2 62.22
third quartile 664.01 783.82 915.91 1091.89 1137.01 980.37 996.27 995.57 915.68 829.91 691.59 748.9 706.21 653.15 592.25 82.94 78.83 64.62 63.39
minimum 549.69 462.79 475.57 728.96 832.72 771.23 781.47 687.86 622.32 394.95 465.61 531.81 516.66 526.94 476.96 64.12 71.19 59.97 61.13
maximum 751.36 866.75 1043.47 1112.61 1160.93 1168.18 1097.06 1048.68 993.96 931.98 730.05 798.41 739.33 711.13 622.92 85.44 82.14 68.53 64.42
baseline set1 difference 145.4 % 70.5 % 40.58 % 30.21 % 24.27 % 3.05 % -1.27 % -5.78 % -7.07 % -7.91 % -8.42 % -7.63 % -4.59 % -11.87 % -15.86 % -36.85 % 102.21 % 277.86 % 363.7 %
ttest p-value 0.0002 0.0025 0.0006 0.0 0.0 0.3211 0.6106 0.3881 0.022 0.0018 0.0 0.0002 0.0035 0.0 0.0 0.0 0.0 0.0 0.0
ttest equality DIFF DIFF DIFF DIFF DIFF SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
rewrite_bs
Re-write Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 779.34 850.31 882.56 886.37 635.07 597.56 514.5 455.06 399.16 365.25 340.37 306.85 276.25
standard dev. 142.85 160.59 159.3 145.71 368.61 354.69 312.83 285.35 259.56 248.52 246.51 240.14 242.6
ci. min. 90% 746.15 811.42 842.19 847.55 555.55 518.26 441.82 385.95 333.38 299.04 270.96 234.87 198.16
ci. max. 90% 812.52 889.2 922.93 925.19 714.59 676.86 587.17 524.16 464.94 431.45 409.79 378.82 354.35
geom. mean 766.06 835.21 868.67 874.67 430.13 400.48 345.72 307.51 269.74 243.97 221.98 196.04 170.64
median 766.63 843.44 844.11 915.68 711.81 704.24 641.13 583.95 523.99 512.13 512.43 289.75 82.41
first quartile 672.51 708.77 746.83 732.11 82.88 82.68 80.67 81.32 79.37 77.76 75.23 70.74 66.84
third quartile 914.28 983.02 1041.98 990.19 934.62 881.03 716.57 651.0 565.16 552.81 541.68 539.31 531.47
minimum 462.79 475.57 649.35 678.42 61.31 63.17 60.36 62.07 59.97 61.13 61.71 61.69 61.52
maximum 1024.78 1140.72 1168.18 1160.93 1160.93 1048.68 954.29 902.46 770.47 698.56 689.66 594.89 619.61
set1mean val. 779.34 850.31 882.56 886.37 635.07 597.56 514.5 455.06 399.16 365.25 340.37 306.85 276.25
standard dev. 142.85 160.59 159.3 145.71 368.61 354.69 312.83 285.35 259.56 248.52 246.51 240.14 242.6
ci. min. 90% 746.15 811.42 842.19 847.55 555.55 518.26 441.82 385.95 333.38 299.04 270.96 234.87 198.16
ci. max. 90% 812.52 889.2 922.93 925.19 714.59 676.86 587.17 524.16 464.94 431.45 409.79 378.82 354.35
geom. mean 766.06 835.21 868.67 874.67 430.13 400.48 345.72 307.51 269.74 243.97 221.98 196.04 170.64
median 766.63 843.44 844.11 915.68 711.81 704.24 641.13 583.95 523.99 512.13 512.43 289.75 82.41
first quartile 672.51 708.77 746.83 732.11 82.88 82.68 80.67 81.32 79.37 77.76 75.23 70.74 66.84
third quartile 914.28 983.02 1041.98 990.19 934.62 881.03 716.57 651.0 565.16 552.81 541.68 539.31 531.47
minimum 462.79 475.57 649.35 678.42 61.31 63.17 60.36 62.07 59.97 61.13 61.71 61.69 61.52
maximum 1024.78 1140.72 1168.18 1160.93 1160.93 1048.68 954.29 902.46 770.47 698.56 689.66 594.89 619.61
baseline set1 difference -0.48 % -1.75 % 1.98 % 1.25 % -7.54 % -9.04 % -12.43 % -9.67 % -13.36 % -10.81 % -11.11 % -21.48 % -37.61 %
ttest p-value 0.0687 0.2462 0.2432 0.4897 0.9463 0.5905 0.3962 0.5654 0.5148 0.6014 0.6615 0.7222 0.8217
ttest equality DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
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Read

iread_fs
Read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 2286.32 2415.05 2389.32 2526.01 2474.72 2340.37 2007.38 1737.01 1634.5 1631.37 1411.8 1383.88 1345.78 1122.58 1146.66 115.57 113.73 74.52 76.95
standard dev. 1133.48 601.71 372.83 339.3 307.51 313.28 276.24 314.81 391.54 502.25 446.27 502.53 469.2 394.36 406.72 5.01 2.36 4.79 6.3
ci. min. 90% 952.57 2012.01 2196.03 2377.31 2355.82 2230.77 1918.46 1642.65 1524.24 1497.57 1298.7 1262.17 1236.77 1011.53 1032.13 114.16 113.06 73.17 75.18
ci. max. 90% 3620.06 2818.1 2582.61 2674.71 2593.62 2449.97 2096.3 1831.37 1744.75 1765.17 1524.9 1505.59 1454.78 1233.63 1261.19 116.98 114.4 75.87 78.73
geom. mean 2101.89 2358.74 2362.67 2504.24 2456.55 2319.14 1989.24 1708.81 1586.28 1542.15 1334.63 1287.59 1262.19 1063.3 1082.7 115.47 113.71 74.37 76.71
median 1979.8 2316.02 2275.11 2605.77 2409.29 2429.65 2057.1 1709.85 1598.87 1783.78 1502.92 1454.27 1405.76 860.39 857.75 113.08 112.59 73.35 73.8
first quartile 1715.32 1949.81 2198.77 2228.9 2239.51 2064.15 1753.87 1489.42 1369.25 1136.27 1008.36 889.76 853.96 829.07 818.34 112.32 112.22 70.57 72.44
third quartile 2550.8 2558.86 2641.97 2815.63 2736.2 2610.92 2177.52 2048.18 1944.46 2091.47 1754.15 1856.88 1725.84 1608.5 1646.9 116.0 114.03 77.71 83.0
minimum 1279.43 1949.81 1733.5 1961.99 1959.14 1737.17 1611.2 1088.97 929.22 750.74 716.71 717.56 728.66 783.85 788.11 112.07 111.58 66.96 68.14
maximum 3906.25 3721.23 3149.91 3135.27 2985.5 2719.25 2690.0 2222.02 2272.34 2257.55 2079.01 2191.27 2071.21 1765.14 1781.54 128.16 119.58 84.02 94.95
set1mean val. 2286.32 2415.05 2389.32 2526.01 2474.72 2340.37 2007.38 1737.01 1634.5 1631.37 1411.8 1383.88 1345.78 1122.58 1146.66 115.57 113.73 74.52 76.95
standard dev. 1133.48 601.71 372.83 339.3 307.51 313.28 276.24 314.81 391.54 502.25 446.27 502.53 469.2 394.36 406.72 5.01 2.36 4.79 6.3
ci. min. 90% 952.57 2012.01 2196.03 2377.31 2355.82 2230.77 1918.46 1642.65 1524.24 1497.57 1298.7 1262.17 1236.77 1011.53 1032.13 114.16 113.06 73.17 75.18
ci. max. 90% 3620.06 2818.1 2582.61 2674.71 2593.62 2449.97 2096.3 1831.37 1744.75 1765.17 1524.9 1505.59 1454.78 1233.63 1261.19 116.98 114.4 75.87 78.73
geom. mean 2101.89 2358.74 2362.67 2504.24 2456.55 2319.14 1989.24 1708.81 1586.28 1542.15 1334.63 1287.59 1262.19 1063.3 1082.7 115.47 113.71 74.37 76.71
median 1979.8 2316.02 2275.11 2605.77 2409.29 2429.65 2057.1 1709.85 1598.87 1783.78 1502.92 1454.27 1405.76 860.39 857.75 113.08 112.59 73.35 73.8
first quartile 1715.32 1949.81 2198.77 2228.9 2239.51 2064.15 1753.87 1489.42 1369.25 1136.27 1008.36 889.76 853.96 829.07 818.34 112.32 112.22 70.57 72.44
third quartile 2550.8 2558.86 2641.97 2815.63 2736.2 2610.92 2177.52 2048.18 1944.46 2091.47 1754.15 1856.88 1725.84 1608.5 1646.9 116.0 114.03 77.71 83.0
minimum 1279.43 1949.81 1733.5 1961.99 1959.14 1737.17 1611.2 1088.97 929.22 750.74 716.71 717.56 728.66 783.85 788.11 112.07 111.58 66.96 68.14
maximum 3906.25 3721.23 3149.91 3135.27 2985.5 2719.25 2690.0 2222.02 2272.34 2257.55 2079.01 2191.27 2071.21 1765.14 1781.54 128.16 119.58 84.02 94.95
baseline set1 difference 6.41 % 2.74 % 0.28 % 16.91 % 10.08 % 25.26 % 2.07 % -4.95 % -4.47 % 14.29 % -4.21 % -6.89 % -9.6 % -0.64 % -1.09 % -86.84 % -87.02 % -91.58 % 21.81 %
ttest p-value 0.3179 0.7657 0.962 0.1726 0.0318 0.0629 0.6471 0.2097 0.4554 0.817 0.3839 0.4299 0.7714 0.621 0.7154 0.0 0.0 0.0 0.0
ttest equality SAME SAME SAME SAME DIFF DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF DIFF
iread_bs
Read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 1833.85 2092.46 2106.85 2075.54 1499.47 1390.86 1222.0 790.71 608.67 532.12 479.73 466.0 425.23
standard dev. 469.87 453.74 389.33 403.63 929.72 865.2 807.04 524.19 410.97 369.07 350.01 380.47 383.37
ci. min. 90% 1724.69 1982.57 2008.18 1968.01 1298.9 1197.43 1034.51 663.76 504.51 433.79 381.17 351.96 301.83
ci. max. 90% 1943.01 2202.35 2205.52 2183.07 1700.05 1584.29 1409.49 917.66 712.82 630.44 578.29 580.04 548.64
geom. mean 1784.5 2047.78 2071.59 2037.98 869.33 797.07 690.32 486.8 390.5 341.43 305.83 280.6 247.91
median 1796.51 2032.28 2081.62 2117.53 1717.66 1723.62 1505.38 968.12 765.46 747.56 718.59 420.55 127.65
first quartile 1460.25 1801.87 1923.61 1752.42 112.17 112.23 112.32 112.51 112.6 113.09 114.02 108.27 86.58
third quartile 1999.29 2345.21 2275.11 2225.22 2144.36 2025.5 1806.29 1195.65 867.29 802.49 804.75 813.97 839.2
minimum 1279.43 1448.21 1416.61 1312.52 69.93 71.08 70.93 66.96 69.34 68.14 71.29 70.51 69.84
maximum 3906.25 3721.23 3149.91 3135.27 2985.5 2719.25 2690.0 1602.59 1259.25 1042.74 888.59 1016.71 949.5
set1mean val. 1833.85 2092.46 2106.85 2075.54 1499.47 1390.86 1222.0 790.71 608.67 532.12 479.73 466.0 425.23
standard dev. 469.87 453.74 389.33 403.63 929.72 865.2 807.04 524.19 410.97 369.07 350.01 380.47 383.37
ci. min. 90% 1724.69 1982.57 2008.18 1968.01 1298.9 1197.43 1034.51 663.76 504.51 433.79 381.17 351.96 301.83
ci. max. 90% 1943.01 2202.35 2205.52 2183.07 1700.05 1584.29 1409.49 917.66 712.82 630.44 578.29 580.04 548.64
geom. mean 1784.5 2047.78 2071.59 2037.98 869.33 797.07 690.32 486.8 390.5 341.43 305.83 280.6 247.91
median 1796.51 2032.28 2081.62 2117.53 1717.66 1723.62 1505.38 968.12 765.46 747.56 718.59 420.55 127.65
first quartile 1460.25 1801.87 1923.61 1752.42 112.17 112.23 112.32 112.51 112.6 113.09 114.02 108.27 86.58
third quartile 1999.29 2345.21 2275.11 2225.22 2144.36 2025.5 1806.29 1195.65 867.29 802.49 804.75 813.97 839.2
minimum 1279.43 1448.21 1416.61 1312.52 69.93 71.08 70.93 66.96 69.34 68.14 71.29 70.51 69.84
maximum 3906.25 3721.23 3149.91 3135.27 2985.5 2719.25 2690.0 1602.59 1259.25 1042.74 888.59 1016.71 949.5
baseline set1 difference -2.01 % 1.93 % 8.9 % 1.2 % -5.51 % -6.53 % -13.88 % -25.86 % -11.59 % -10.95 % -13.18 % -48.75 % -84.9 %
ttest p-value 0.2299 0.4979 0.1964 0.9431 0.0205 0.001 0.001 0.0 0.0031 0.0008 0.0005 0.0026 0.0009
ttest equality SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
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Re-read

reread_fs
Re-read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 3782.01 4862.93 3584.36 3136.49 2991.65 2684.37 2330.53 1998.92 1725.49 1684.6 1545.15 1406.38 1317.36 1160.3 1167.83 1105.56 1127.72 1173.66 85.3
standard dev. 248.48 2306.8 624.24 438.01 216.9 416.97 336.55 360.83 461.26 536.58 541.41 504.29 405.67 398.81 417.92 358.47 371.57 380.79 6.74
ci. min. 90% 3489.63 3317.76 3260.73 2944.52 2907.79 2538.5 2222.2 1890.77 1595.6 1541.65 1407.94 1284.25 1223.11 1048.0 1050.15 1004.62 1023.08 1066.43 83.4
ci. max. 90% 4074.39 6408.1 3907.98 3328.45 3075.51 2830.25 2438.87 2107.07 1855.37 1827.54 1682.36 1528.51 1411.6 1272.6 1285.52 1206.5 1232.35 1280.89 87.19
geom. mean 3775.6 4339.21 3539.9 3106.61 2983.74 2646.47 2307.89 1964.3 1658.57 1585.22 1439.1 1312.32 1251.45 1098.45 1101.32 1053.13 1071.55 1116.17 85.05
median 3906.25 3721.23 3149.91 3135.27 2985.5 2868.35 2231.93 2008.47 1739.45 1790.19 1694.27 1502.75 1475.12 855.53 852.31 825.56 837.42 861.12 81.77
first quartile 3782.01 3721.23 3149.91 2846.19 2927.77 2547.49 2048.78 1780.59 1454.67 1296.09 912.95 898.57 919.96 828.75 824.03 811.02 813.87 844.03 80.5
third quartile 3906.25 7067.06 3899.63 3466.99 3128.0 2982.2 2509.76 2314.13 2224.15 2183.51 2044.85 1735.45 1678.39 1624.5 1692.09 1516.46 1550.59 1614.99 91.17
minimum 3409.29 1574.95 3149.91 2228.9 2387.34 1421.58 1866.44 1138.64 821.64 741.58 733.02 703.98 733.61 808.72 805.97 791.12 722.98 834.88 77.66
maximum 3906.25 7812.5 5117.72 3877.22 3326.46 3051.63 2906.21 2536.45 2368.58 2304.05 2233.15 2232.08 1867.41 1740.83 1894.72 1643.95 1655.33 1690.28 105.5
set1mean val. 3782.01 4862.93 3584.36 3136.49 2991.65 2684.37 2330.53 1998.92 1725.49 1684.6 1545.15 1406.38 1317.36 1160.3 1167.83 1105.56 1127.72 1173.66 85.3
standard dev. 248.48 2306.8 624.24 438.01 216.9 416.97 336.55 360.83 461.26 536.58 541.41 504.29 405.67 398.81 417.92 358.47 371.57 380.79 6.74
ci. min. 90% 3489.63 3317.76 3260.73 2944.52 2907.79 2538.5 2222.2 1890.77 1595.6 1541.65 1407.94 1284.25 1223.11 1048.0 1050.15 1004.62 1023.08 1066.43 83.4
ci. max. 90% 4074.39 6408.1 3907.98 3328.45 3075.51 2830.25 2438.87 2107.07 1855.37 1827.54 1682.36 1528.51 1411.6 1272.6 1285.52 1206.5 1232.35 1280.89 87.19
geom. mean 3775.6 4339.21 3539.9 3106.61 2983.74 2646.47 2307.89 1964.3 1658.57 1585.22 1439.1 1312.32 1251.45 1098.45 1101.32 1053.13 1071.55 1116.17 85.05
median 3906.25 3721.23 3149.91 3135.27 2985.5 2868.35 2231.93 2008.47 1739.45 1790.19 1694.27 1502.75 1475.12 855.53 852.31 825.56 837.42 861.12 81.77
first quartile 3782.01 3721.23 3149.91 2846.19 2927.77 2547.49 2048.78 1780.59 1454.67 1296.09 912.95 898.57 919.96 828.75 824.03 811.02 813.87 844.03 80.5
third quartile 3906.25 7067.06 3899.63 3466.99 3128.0 2982.2 2509.76 2314.13 2224.15 2183.51 2044.85 1735.45 1678.39 1624.5 1692.09 1516.46 1550.59 1614.99 91.17
minimum 3409.29 1574.95 3149.91 2228.9 2387.34 1421.58 1866.44 1138.64 821.64 741.58 733.02 703.98 733.61 808.72 805.97 791.12 722.98 834.88 77.66
maximum 3906.25 7812.5 5117.72 3877.22 3326.46 3051.63 2906.21 2536.45 2368.58 2304.05 2233.15 2232.08 1867.41 1740.83 1894.72 1643.95 1655.33 1690.28 105.5
baseline set1 difference 0.0 % -52.37 % -21.7 % 0.0 % -2.33 % 0.83 % -13.84 % -8.22 % -5.13 % 7.58 % 6.84 % -6.74 % -5.79 % -0.58 % -2.37 % -6.41 % -6.24 % -3.11 % 26.5 %
ttest p-value 0.3559 0.1066 0.0525 0.2454 0.0912 0.9036 0.0025 0.0553 0.349 0.8292 0.3292 0.5941 0.7937 0.803 0.6691 0.1051 0.0975 0.105 0.0
ttest equality SAME SAME DIFF SAME DIFF SAME DIFF DIFF SAME SAME SAME SAME SAME SAME SAME SAME DIFF SAME DIFF
reread_bs
Re-read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 2309.19 2790.02 2510.35 2352.89 1899.68 1764.23 1597.62 1113.17 790.62 743.51 758.42 747.31 719.1
standard dev. 778.61 1439.96 782.49 484.53 669.78 546.06 518.78 350.34 237.62 232.44 250.91 258.85 264.48
ci. min. 90% 2128.3 2441.28 2312.04 2223.81 1755.18 1642.15 1477.1 1028.32 730.4 681.59 687.77 669.73 633.96
ci. max. 90% 2490.08 3138.76 2708.65 2481.97 2044.18 1886.31 1718.14 1198.02 850.84 805.43 829.08 824.9 804.23
geom. mean 2190.23 2540.28 2401.73 2304.34 1605.52 1500.11 1349.89 958.28 696.33 647.65 653.13 632.49 597.39
median 2032.6 2234.83 2245.76 2227.01 1746.91 1718.57 1604.99 1165.89 841.53 807.99 825.41 820.9 823.81
first quartile 1610.59 1803.11 1988.92 1965.42 1671.42 1654.64 1506.21 1058.79 806.84 747.52 803.61 813.01 799.63
third quartile 2814.11 3183.62 3070.72 2833.86 2280.26 2196.62 1878.08 1316.12 872.24 840.78 848.31 846.62 833.66
minimum 1402.35 1539.35 1534.63 1607.72 79.07 80.39 79.83 80.1 81.29 78.6 77.66 80.03 79.71
maximum 3906.25 7812.5 5117.72 3135.27 3128.0 2547.49 2488.3 1617.17 1133.78 1045.05 1054.88 976.8 917.43
set1mean val. 2309.19 2790.02 2510.35 2352.89 1899.68 1764.23 1597.62 1113.17 790.62 743.51 758.42 747.31 719.1
standard dev. 778.61 1439.96 782.49 484.53 669.78 546.06 518.78 350.34 237.62 232.44 250.91 258.85 264.48
ci. min. 90% 2128.3 2441.28 2312.04 2223.81 1755.18 1642.15 1477.1 1028.32 730.4 681.59 687.77 669.73 633.96
ci. max. 90% 2490.08 3138.76 2708.65 2481.97 2044.18 1886.31 1718.14 1198.02 850.84 805.43 829.08 824.9 804.23
geom. mean 2190.23 2540.28 2401.73 2304.34 1605.52 1500.11 1349.89 958.28 696.33 647.65 653.13 632.49 597.39
median 2032.6 2234.83 2245.76 2227.01 1746.91 1718.57 1604.99 1165.89 841.53 807.99 825.41 820.9 823.81
first quartile 1610.59 1803.11 1988.92 1965.42 1671.42 1654.64 1506.21 1058.79 806.84 747.52 803.61 813.01 799.63
third quartile 2814.11 3183.62 3070.72 2833.86 2280.26 2196.62 1878.08 1316.12 872.24 840.78 848.31 846.62 833.66
minimum 1402.35 1539.35 1534.63 1607.72 79.07 80.39 79.83 80.1 81.29 78.6 77.66 80.03 79.71
maximum 3906.25 7812.5 5117.72 3135.27 3128.0 2547.49 2488.3 1617.17 1133.78 1045.05 1054.88 976.8 917.43
baseline set1 difference -3.85 % -2.6 % 3.75 % 0.88 % -10.14 % -14.84 % -10.89 % -10.8 % -4.51 % -3.2 % -1.45 % -3.53 % -3.57 %
ttest p-value 0.1894 0.564 0.8867 0.4224 0.6413 0.0969 0.1274 0.257 0.6114 0.7505 0.9819 0.9525 0.8191
ttest equality SAME SAME SAME SAME SAME DIFF SAME SAME SAME SAME SAME SAME SAME
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Random read

randrd_fs
Random read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 1154.26 1610.97 1974.27 2202.26 2424.33 2301.55 2075.79 1861.81 1662.45 1593.67 1579.12 1314.7 1255.47 1136.27 1170.1 1171.06 1215.83 1339.12 75.0
standard dev. 211.77 428.51 238.29 308.56 247.52 457.59 285.88 331.61 458.38 509.9 532.62 395.26 377.59 384.45 422.1 412.14 417.16 552.16 40.28
ci. min. 90% 905.07 1323.94 1850.73 2067.03 2328.63 2141.47 1983.77 1762.42 1533.38 1457.84 1444.14 1218.97 1167.75 1028.01 1051.24 1055.0 1098.36 1183.63 63.66
ci. max. 90% 1403.45 1898.0 2097.81 2337.5 2520.04 2461.63 2167.82 1961.21 1791.53 1729.51 1714.1 1410.43 1343.19 1244.53 1288.96 1287.12 1333.3 1494.6 86.35
geom. mean 1139.77 1552.13 1961.15 2179.99 2412.0 2248.64 2057.72 1832.19 1592.59 1502.1 1480.11 1254.32 1194.82 1078.44 1102.97 1105.38 1150.16 1235.04 63.34
median 1127.17 1762.38 1938.61 2310.24 2501.24 2475.55 1999.93 1835.1 1705.15 1648.39 1694.62 1365.81 1363.17 848.44 852.64 856.85 873.68 879.72 73.89
first quartile 974.91 1423.54 1733.5 2048.47 2225.22 2041.67 1890.01 1705.27 1363.54 1201.47 1072.25 974.33 817.64 824.24 833.34 826.8 863.43 870.64 40.38
third quartile 1306.52 1949.81 2198.77 2436.02 2627.35 2624.19 2191.13 2131.13 2053.48 2055.94 2076.35 1576.64 1613.1 1591.48 1651.44 1686.06 1721.29 2002.51 114.16
minimum 974.91 969.3 1733.5 1545.56 1959.14 1251.86 1633.79 1210.96 809.74 741.06 728.97 708.65 733.74 794.0 810.93 812.05 835.9 866.58 20.9
maximum 1387.8 1949.81 2275.11 2631.67 2736.2 2776.87 2655.93 2512.14 2335.61 2272.84 2222.2 2093.77 1710.31 1868.84 1962.9 1783.77 1821.34 2095.88 146.0
set1mean val. 1154.26 1610.97 1974.27 2202.26 2424.33 2301.55 2075.79 1861.81 1662.45 1593.67 1579.12 1314.7 1255.47 1136.27 1170.1 1171.06 1215.83 1339.12 75.0
standard dev. 211.77 428.51 238.29 308.56 247.52 457.59 285.88 331.61 458.38 509.9 532.62 395.26 377.59 384.45 422.1 412.14 417.16 552.16 40.28
ci. min. 90% 905.07 1323.94 1850.73 2067.03 2328.63 2141.47 1983.77 1762.42 1533.38 1457.84 1444.14 1218.97 1167.75 1028.01 1051.24 1055.0 1098.36 1183.63 63.66
ci. max. 90% 1403.45 1898.0 2097.81 2337.5 2520.04 2461.63 2167.82 1961.21 1791.53 1729.51 1714.1 1410.43 1343.19 1244.53 1288.96 1287.12 1333.3 1494.6 86.35
geom. mean 1139.77 1552.13 1961.15 2179.99 2412.0 2248.64 2057.72 1832.19 1592.59 1502.1 1480.11 1254.32 1194.82 1078.44 1102.97 1105.38 1150.16 1235.04 63.34
median 1127.17 1762.38 1938.61 2310.24 2501.24 2475.55 1999.93 1835.1 1705.15 1648.39 1694.62 1365.81 1363.17 848.44 852.64 856.85 873.68 879.72 73.89
first quartile 974.91 1423.54 1733.5 2048.47 2225.22 2041.67 1890.01 1705.27 1363.54 1201.47 1072.25 974.33 817.64 824.24 833.34 826.8 863.43 870.64 40.38
third quartile 1306.52 1949.81 2198.77 2436.02 2627.35 2624.19 2191.13 2131.13 2053.48 2055.94 2076.35 1576.64 1613.1 1591.48 1651.44 1686.06 1721.29 2002.51 114.16
minimum 974.91 969.3 1733.5 1545.56 1959.14 1251.86 1633.79 1210.96 809.74 741.06 728.97 708.65 733.74 794.0 810.93 812.05 835.9 866.58 20.9
maximum 1387.8 1949.81 2275.11 2631.67 2736.2 2776.87 2655.93 2512.14 2335.61 2272.84 2222.2 2093.77 1710.31 1868.84 1962.9 1783.77 1821.34 2095.88 146.0
baseline set1 difference -15.48 % -9.61 % -13.34 % -12.21 % -7.63 % -3.85 % -15.17 % -10.99 % -6.41 % 1.39 % 14.43 % 4.57 % -5.33 % 0.72 % -1.82 % -3.11 % -0.59 % 0.68 % 53.78 %
ttest p-value 0.3367 0.6286 0.0038 0.0035 0.6194 0.3065 0.0022 0.1847 0.244 0.9891 0.0795 0.6431 0.6891 0.5854 0.7366 0.3776 0.2825 0.9272 0.0038
ttest equality SAME SAME DIFF DIFF SAME SAME DIFF SAME SAME SAME DIFF SAME SAME SAME SAME SAME SAME SAME DIFF
randrd_bs
Random read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 1600.45 1935.61 2080.12 2140.03 1860.21 1766.08 1579.55 1143.73 777.72 782.19 794.83 738.3 736.94
standard dev. 302.59 393.52 392.79 354.85 585.47 546.34 514.14 383.28 236.28 249.2 260.49 238.86 252.83
ci. min. 90% 1530.16 1840.31 1980.57 2045.5 1733.9 1643.93 1460.1 1050.9 717.83 715.8 721.48 666.7 655.56
ci. max. 90% 1670.75 2030.92 2179.67 2234.57 1986.52 1888.22 1698.99 1236.55 837.6 848.58 868.19 809.89 818.32
geom. mean 1571.02 1894.37 2043.31 2110.64 1454.49 1401.27 1267.9 948.91 677.25 676.23 694.69 653.76 643.04
median 1641.44 1949.81 2086.2 2162.04 1908.57 1734.29 1664.97 1244.26 834.66 833.88 854.13 818.85 836.12
first quartile 1347.06 1589.78 1709.07 1812.81 1693.32 1669.96 1439.08 1040.27 778.98 809.24 814.97 773.76 794.66
third quartile 1794.73 2226.14 2402.69 2402.69 2195.45 2093.84 1874.98 1358.31 873.66 867.79 875.25 858.71 861.07
minimum 969.3 969.3 1491.98 1567.68 20.9 29.91 39.73 53.54 69.62 74.17 101.58 121.36 122.05
maximum 2152.15 2663.99 2719.25 2736.2 2776.87 2452.17 2180.9 1620.09 1065.13 1064.96 1083.11 969.81 869.44
set1mean val. 1600.45 1935.61 2080.12 2140.03 1860.21 1766.08 1579.55 1143.73 777.72 782.19 794.83 738.3 736.94
standard dev. 302.59 393.52 392.79 354.85 585.47 546.34 514.14 383.28 236.28 249.2 260.49 238.86 252.83
ci. min. 90% 1530.16 1840.31 1980.57 2045.5 1733.9 1643.93 1460.1 1050.9 717.83 715.8 721.48 666.7 655.56
ci. max. 90% 1670.75 2030.92 2179.67 2234.57 1986.52 1888.22 1698.99 1236.55 837.6 848.58 868.19 809.89 818.32
geom. mean 1571.02 1894.37 2043.31 2110.64 1454.49 1401.27 1267.9 948.91 677.25 676.23 694.69 653.76 643.04
median 1641.44 1949.81 2086.2 2162.04 1908.57 1734.29 1664.97 1244.26 834.66 833.88 854.13 818.85 836.12
first quartile 1347.06 1589.78 1709.07 1812.81 1693.32 1669.96 1439.08 1040.27 778.98 809.24 814.97 773.76 794.66
third quartile 1794.73 2226.14 2402.69 2402.69 2195.45 2093.84 1874.98 1358.31 873.66 867.79 875.25 858.71 861.07
minimum 969.3 969.3 1491.98 1567.68 20.9 29.91 39.73 53.54 69.62 74.17 101.58 121.36 122.05
maximum 2152.15 2663.99 2719.25 2736.2 2776.87 2452.17 2180.9 1620.09 1065.13 1064.96 1083.11 969.81 869.44
baseline set1 difference -6.34 % -5.59 % -0.27 % 0.58 % -4.95 % -9.07 % -9.8 % -7.77 % -3.1 % -1.33 % -0.73 % -2.98 % -2.26 %
ttest p-value 0.2467 0.0706 0.811 0.7415 0.5261 0.242 0.2204 0.2927 0.698 0.7656 0.6551 0.8799 0.9937
ttest equality SAME DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
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Random write

randwr_fs
Random write File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 487.01 639.46 867.81 1012.47 1136.16 1024.24 1091.44 982.68 873.85 772.45 721.58 689.3 666.82 649.04 567.46 79.25 75.96 55.84 51.09
standard dev. 125.37 110.95 111.33 106.72 82.88 132.48 104.55 112.88 140.93 148.06 89.03 61.55 56.26 55.91 32.49 4.06 7.32 13.53 15.33
ci. min. 90% 339.48 565.14 810.1 965.7 1104.12 977.89 1057.79 948.85 834.16 733.01 699.02 674.39 653.74 633.29 558.31 78.11 73.9 52.03 46.78
ci. max. 90% 634.53 713.78 925.53 1059.24 1168.21 1070.59 1125.09 1016.51 913.54 811.9 744.14 704.2 679.89 664.78 576.61 80.39 78.02 59.65 55.41
geom. mean 472.05 630.33 861.39 1006.77 1133.12 1015.6 1086.29 975.93 862.14 758.3 716.13 686.5 664.46 646.77 566.55 79.14 75.56 53.71 48.07
median 549.69 651.44 842.86 1041.86 1158.37 1028.42 1111.09 1009.09 876.32 748.19 729.53 712.47 674.71 620.82 568.52 80.83 77.16 62.08 58.27
first quartile 487.01 606.35 782.0 972.46 1101.79 953.32 1054.09 895.39 783.45 665.7 665.45 648.67 625.4 608.95 554.28 76.88 74.98 51.46 43.96
third quartile 549.69 715.37 970.14 1076.07 1199.44 1088.76 1179.76 1064.27 1001.37 919.95 775.68 731.88 720.5 709.06 582.53 82.19 80.07 65.33 62.52
minimum 298.95 462.79 713.86 758.49 917.21 694.6 849.87 715.31 604.21 558.35 555.87 554.63 572.98 575.85 504.34 64.85 50.71 25.02 19.45
maximum 549.69 783.82 1043.47 1204.64 1249.46 1260.9 1231.0 1120.99 1091.75 989.59 893.08 811.36 763.22 781.02 627.71 83.52 85.63 67.89 65.99
set1mean val. 487.01 639.46 867.81 1012.47 1136.16 1024.24 1091.44 982.68 873.85 772.45 721.58 689.3 666.82 649.04 567.46 79.25 75.96 55.84 51.09
standard dev. 125.37 110.95 111.33 106.72 82.88 132.48 104.55 112.88 140.93 148.06 89.03 61.55 56.26 55.91 32.49 4.06 7.32 13.53 15.33
ci. min. 90% 339.48 565.14 810.1 965.7 1104.12 977.89 1057.79 948.85 834.16 733.01 699.02 674.39 653.74 633.29 558.31 78.11 73.9 52.03 46.78
ci. max. 90% 634.53 713.78 925.53 1059.24 1168.21 1070.59 1125.09 1016.51 913.54 811.9 744.14 704.2 679.89 664.78 576.61 80.39 78.02 59.65 55.41
geom. mean 472.05 630.33 861.39 1006.77 1133.12 1015.6 1086.29 975.93 862.14 758.3 716.13 686.5 664.46 646.77 566.55 79.14 75.56 53.71 48.07
median 549.69 651.44 842.86 1041.86 1158.37 1028.42 1111.09 1009.09 876.32 748.19 729.53 712.47 674.71 620.82 568.52 80.83 77.16 62.08 58.27
first quartile 487.01 606.35 782.0 972.46 1101.79 953.32 1054.09 895.39 783.45 665.7 665.45 648.67 625.4 608.95 554.28 76.88 74.98 51.46 43.96
third quartile 549.69 715.37 970.14 1076.07 1199.44 1088.76 1179.76 1064.27 1001.37 919.95 775.68 731.88 720.5 709.06 582.53 82.19 80.07 65.33 62.52
minimum 298.95 462.79 713.86 758.49 917.21 694.6 849.87 715.31 604.21 558.35 555.87 554.63 572.98 575.85 504.34 64.85 50.71 25.02 19.45
maximum 549.69 783.82 1043.47 1204.64 1249.46 1260.9 1231.0 1120.99 1091.75 989.59 893.08 811.36 763.22 781.02 627.71 83.52 85.63 67.89 65.99
baseline set1 difference -30.2 % -13.09 % -19.23 % -7.26 % -4.71 % -14.33 % -8.9 % -7.14 % -9.0 % -9.88 % -1.77 % -2.42 % -4.63 % -11.0 % -15.62 % -38.74 % 34.04 % 352.9 % 447.87 %
ttest p-value 0.063 0.0184 0.0009 0.8345 0.3847 0.001 0.0009 0.0025 0.0408 0.1361 0.2214 0.0134 0.0 0.0 0.0 0.0 0.0 0.0 0.0
ttest equality DIFF DIFF DIFF SAME SAME DIFF DIFF DIFF DIFF SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
randwr_bs
Random write Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 783.97 903.03 951.88 968.1 676.8 620.6 550.43 476.01 414.26 391.85 372.51 341.86 295.83
standard dev. 172.21 194.15 178.27 176.4 415.95 384.45 348.19 301.89 269.02 269.71 275.81 277.2 263.88
ci. min. 90% 743.96 856.01 906.7 921.11 587.07 534.65 469.54 402.9 346.08 320.0 294.84 258.78 210.88
ci. max. 90% 823.98 950.05 997.06 1015.1 766.54 706.55 631.33 549.13 482.44 463.7 450.18 424.95 380.77
geom. mean 763.35 882.01 935.06 951.81 386.64 377.37 349.18 312.34 275.81 254.95 234.34 208.39 177.31
median 777.4 869.31 991.54 1027.51 736.8 722.83 680.03 614.06 565.47 565.28 554.19 311.46 79.97
first quartile 666.06 716.62 742.11 777.19 82.21 81.72 82.38 79.68 77.01 76.33 76.45 70.19 67.62
third quartile 933.61 1060.04 1097.5 1088.53 1010.01 884.29 764.43 702.16 605.87 604.86 627.19 599.92 588.96
minimum 298.95 490.5 707.12 711.29 19.45 30.2 43.48 52.14 57.01 56.58 59.83 61.94 61.71
maximum 1097.06 1231.0 1260.9 1260.9 1203.57 1201.38 1082.34 900.88 805.23 750.5 699.2 724.77 627.45
set1mean val. 783.97 903.03 951.88 968.1 676.8 620.6 550.43 476.01 414.26 391.85 372.51 341.86 295.83
standard dev. 172.21 194.15 178.27 176.4 415.95 384.45 348.19 301.89 269.02 269.71 275.81 277.2 263.88
ci. min. 90% 743.96 856.01 906.7 921.11 587.07 534.65 469.54 402.9 346.08 320.0 294.84 258.78 210.88
ci. max. 90% 823.98 950.05 997.06 1015.1 766.54 706.55 631.33 549.13 482.44 463.7 450.18 424.95 380.77
geom. mean 763.35 882.01 935.06 951.81 386.64 377.37 349.18 312.34 275.81 254.95 234.34 208.39 177.31
median 777.4 869.31 991.54 1027.51 736.8 722.83 680.03 614.06 565.47 565.28 554.19 311.46 79.97
first quartile 666.06 716.62 742.11 777.19 82.21 81.72 82.38 79.68 77.01 76.33 76.45 70.19 67.62
third quartile 933.61 1060.04 1097.5 1088.53 1010.01 884.29 764.43 702.16 605.87 604.86 627.19 599.92 588.96
minimum 298.95 490.5 707.12 711.29 19.45 30.2 43.48 52.14 57.01 56.58 59.83 61.94 61.71
maximum 1097.06 1231.0 1260.9 1260.9 1203.57 1201.38 1082.34 900.88 805.23 750.5 699.2 724.77 627.45
baseline set1 difference -13.96 % -12.77 % -0.53 % -1.55 % -7.1 % -7.39 % -8.44 % -7.2 % -6.13 % -5.45 % -10.73 % -22.81 % -40.1 %
ttest p-value 0.014 0.0565 0.4787 0.2592 0.3769 0.2659 0.3504 0.6205 0.6929 0.7687 0.6101 0.6837 0.7298
ttest equality DIFF DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
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Backwards read

bkwdrd_fs
Backwards read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 360.96 675.37 1061.82 1416.71 1652.66 1830.23 1652.55 1615.27 1543.38 1556.35 1288.52 1407.67 1271.67 1155.96 1154.58 348.14 139.92 44.57 41.82
standard dev. 73.55 56.61 123.68 133.39 185.9 285.54 201.52 297.66 425.55 449.21 317.25 490.18 464.33 428.71 410.64 586.26 280.5 21.7 22.54
ci. min. 90% 274.41 637.45 997.7 1358.25 1580.78 1730.33 1587.68 1526.06 1423.55 1436.68 1208.12 1288.96 1163.8 1035.24 1038.95 183.06 60.93 38.46 35.48
ci. max. 90% 447.51 713.28 1125.94 1475.17 1724.54 1930.12 1717.41 1704.49 1663.21 1676.02 1368.92 1526.39 1379.54 1276.69 1270.22 513.23 218.91 50.68 48.17
geom. mean 354.81 673.35 1054.9 1410.76 1641.45 1806.83 1640.58 1588.04 1481.67 1483.57 1242.72 1318.95 1185.31 1087.05 1090.06 152.94 99.32 38.47 35.09
median 374.8 657.92 1114.45 1420.02 1682.51 1840.86 1633.85 1552.53 1486.92 1605.29 1423.93 1459.31 1368.7 848.06 853.13 105.01 99.91 44.34 40.66
first quartile 333.48 644.97 1027.85 1353.97 1590.8 1681.51 1544.31 1453.52 1298.29 1200.6 1065.31 932.79 776.1 827.54 828.68 93.05 83.75 23.73 20.1
third quartile 402.27 703.91 1114.45 1475.94 1750.13 2057.69 1827.42 1841.69 1967.79 1981.77 1518.03 1896.72 1645.62 1742.0 1650.24 108.7 106.8 65.12 63.15
minimum 260.87 597.89 821.19 1161.93 1097.73 1203.03 1294.85 969.2 747.94 731.3 721.11 709.73 706.86 763.94 793.65 71.37 54.58 13.44 12.72
maximum 433.37 783.82 1289.93 1642.39 1902.27 2232.86 2017.25 2184.97 2193.9 2214.63 1679.26 2205.09 2105.79 1867.95 1816.58 1797.47 1773.26 76.12 82.19
set1mean val. 360.96 675.37 1061.82 1416.71 1652.66 1830.23 1652.55 1615.27 1543.38 1556.35 1288.52 1407.67 1271.67 1155.96 1154.58 348.14 139.92 44.57 41.82
standard dev. 73.55 56.61 123.68 133.39 185.9 285.54 201.52 297.66 425.55 449.21 317.25 490.18 464.33 428.71 410.64 586.26 280.5 21.7 22.54
ci. min. 90% 274.41 637.45 997.7 1358.25 1580.78 1730.33 1587.68 1526.06 1423.55 1436.68 1208.12 1288.96 1163.8 1035.24 1038.95 183.06 60.93 38.46 35.48
ci. max. 90% 447.51 713.28 1125.94 1475.17 1724.54 1930.12 1717.41 1704.49 1663.21 1676.02 1368.92 1526.39 1379.54 1276.69 1270.22 513.23 218.91 50.68 48.17
geom. mean 354.81 673.35 1054.9 1410.76 1641.45 1806.83 1640.58 1588.04 1481.67 1483.57 1242.72 1318.95 1185.31 1087.05 1090.06 152.94 99.32 38.47 35.09
median 374.8 657.92 1114.45 1420.02 1682.51 1840.86 1633.85 1552.53 1486.92 1605.29 1423.93 1459.31 1368.7 848.06 853.13 105.01 99.91 44.34 40.66
first quartile 333.48 644.97 1027.85 1353.97 1590.8 1681.51 1544.31 1453.52 1298.29 1200.6 1065.31 932.79 776.1 827.54 828.68 93.05 83.75 23.73 20.1
third quartile 402.27 703.91 1114.45 1475.94 1750.13 2057.69 1827.42 1841.69 1967.79 1981.77 1518.03 1896.72 1645.62 1742.0 1650.24 108.7 106.8 65.12 63.15
minimum 260.87 597.89 821.19 1161.93 1097.73 1203.03 1294.85 969.2 747.94 731.3 721.11 709.73 706.86 763.94 793.65 71.37 54.58 13.44 12.72
maximum 433.37 783.82 1289.93 1642.39 1902.27 2232.86 2017.25 2184.97 2193.9 2214.63 1679.26 2205.09 2105.79 1867.95 1816.58 1797.47 1773.26 76.12 82.19
baseline set1 difference -22.67 % -16.06 % -10.33 % -7.09 % -8.34 % 25.28 % -0.31 % -5.72 % -10.26 % -2.72 % -4.31 % -4.38 % -9.91 % -2.71 % -1.88 % -87.88 % -88.41 % -94.98 % -38.76 %
ttest p-value 0.0568 0.0012 0.4998 0.3691 0.0171 0.0 0.4817 0.542 0.259 0.989 0.0508 0.7405 0.2549 0.6315 0.6813 0.0 0.0 0.0 0.0
ttest equality DIFF DIFF SAME SAME DIFF DIFF SAME SAME SAME SAME DIFF SAME SAME SAME SAME DIFF DIFF DIFF DIFF
bkwdrd_bs
Backwards read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 1240.79 1503.92 1623.34 1750.3 1496.97 1298.55 1145.14 818.11 585.66 533.14 481.47 445.56 395.5
standard dev. 372.9 344.13 249.39 257.05 732.14 826.16 733.95 564.8 387.54 383.86 361.29 366.56 359.1
ci. min. 90% 1154.15 1420.57 1560.13 1681.82 1339.02 1113.84 974.63 681.33 487.45 430.88 379.73 335.69 279.91
ci. max. 90% 1327.42 1587.26 1686.54 1818.78 1654.92 1483.25 1315.65 954.9 683.88 635.4 583.21 555.43 511.09
geom. mean 1158.04 1454.79 1604.03 1731.56 793.15 575.56 549.69 426.73 349.79 316.81 290.8 262.24 228.66
median 1359.7 1533.02 1591.51 1710.02 1746.04 1613.83 1444.89 1058.55 771.37 732.17 733.61 407.5 108.86
first quartile 1150.06 1410.74 1471.65 1547.34 1523.8 71.49 83.75 93.05 99.67 103.81 106.18 98.99 80.67
third quartile 1444.54 1690.15 1789.68 1964.91 1963.49 1863.39 1681.71 1235.88 850.01 826.12 828.91 814.71 808.72
minimum 260.87 597.89 1114.45 1203.03 12.72 14.03 20.05 30.75 39.6 47.31 58.67 62.63 67.48
maximum 1760.5 2082.11 2066.69 2186.3 2232.86 2214.63 2030.25 1620.79 1171.0 1097.73 847.84 981.47 851.16
set1mean val. 1240.79 1503.92 1623.34 1750.3 1496.97 1298.55 1145.14 818.11 585.66 533.14 481.47 445.56 395.5
standard dev. 372.9 344.13 249.39 257.05 732.14 826.16 733.95 564.8 387.54 383.86 361.29 366.56 359.1
ci. min. 90% 1154.15 1420.57 1560.13 1681.82 1339.02 1113.84 974.63 681.33 487.45 430.88 379.73 335.69 279.91
ci. max. 90% 1327.42 1587.26 1686.54 1818.78 1654.92 1483.25 1315.65 954.9 683.88 635.4 583.21 555.43 511.09
geom. mean 1158.04 1454.79 1604.03 1731.56 793.15 575.56 549.69 426.73 349.79 316.81 290.8 262.24 228.66
median 1359.7 1533.02 1591.51 1710.02 1746.04 1613.83 1444.89 1058.55 771.37 732.17 733.61 407.5 108.86
first quartile 1150.06 1410.74 1471.65 1547.34 1523.8 71.49 83.75 93.05 99.67 103.81 106.18 98.99 80.67
third quartile 1444.54 1690.15 1789.68 1964.91 1963.49 1863.39 1681.71 1235.88 850.01 826.12 828.91 814.71 808.72
minimum 260.87 597.89 1114.45 1203.03 12.72 14.03 20.05 30.75 39.6 47.31 58.67 62.63 67.48
maximum 1760.5 2082.11 2066.69 2186.3 2232.86 2214.63 2030.25 1620.79 1171.0 1097.73 847.84 981.47 851.16
baseline set1 difference -3.66 % -2.72 % -5.54 % -6.98 % -2.48 % -13.0 % -21.35 % -17.66 % -9.96 % -12.2 % -9.99 % -51.26 % -86.99 %
ttest p-value 0.4177 0.3813 0.2684 0.1825 0.0698 0.0016 0.0001 0.0002 0.0026 0.001 0.0008 0.0003 0.0002
ttest equality SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
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Record rewrite

recrewr_fs
Record rewrite File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 492.05 786.59 1059.76 1183.69 1326.82 1440.09 1394.46 1374.5 1377.71 1300.07 1242.43 1223.35 1189.22 975.85 983.2 1036.59 1084.87 1159.27 1114.86
standard dev. 142.68 101.36 101.61 161.25 168.71 247.64 208.95 306.45 378.28 436.74 478.95 452.86 464.85 405.78 419.3 428.19 444.0 487.73 463.84
ci. min. 90% 324.16 718.7 1007.08 1113.02 1261.58 1353.45 1327.2 1282.65 1271.18 1183.72 1121.05 1113.68 1081.23 861.58 865.13 916.02 959.84 1021.93 984.24
ci. max. 90% 659.94 854.48 1112.44 1254.35 1392.05 1526.72 1461.72 1466.35 1484.23 1416.41 1363.81 1333.03 1297.22 1090.11 1101.28 1157.17 1209.89 1296.61 1245.47
geom. mean 474.2 779.96 1055.16 1172.58 1316.08 1417.75 1377.77 1334.91 1312.07 1209.91 1133.86 1133.59 1094.21 905.29 910.17 961.61 1006.63 1067.17 1030.01
median 517.17 783.82 1043.47 1250.62 1359.63 1496.73 1462.89 1488.09 1561.12 1532.5 1481.46 1313.63 1297.07 696.78 716.8 741.46 761.51 767.16 758.32
first quartile 438.23 783.82 1027.85 1103.48 1198.14 1327.91 1304.57 1154.78 1077.35 894.77 701.29 727.9 690.53 676.72 684.06 716.61 746.9 756.78 746.36
third quartile 570.99 866.75 1133.73 1300.24 1426.33 1586.15 1498.93 1561.79 1608.52 1613.13 1646.95 1648.46 1621.18 1353.06 1496.24 1596.91 1677.84 1793.15 1720.49
minimum 298.95 557.22 876.08 869.14 993.7 991.46 954.29 713.12 566.2 559.43 554.86 614.16 636.01 631.52 660.41 702.38 730.77 718.77 728.89
maximum 634.9 866.75 1195.79 1427.71 1562.19 1815.37 1667.57 1773.03 1798.74 1834.86 1858.6 1840.84 1849.09 1672.17 1690.17 1691.13 1764.3 1838.87 1779.22
set1mean val. 492.05 786.59 1059.76 1183.69 1326.82 1440.09 1394.46 1374.5 1377.71 1300.07 1242.43 1223.35 1189.22 975.85 983.2 1036.59 1084.87 1159.27 1114.86
standard dev. 142.68 101.36 101.61 161.25 168.71 247.64 208.95 306.45 378.28 436.74 478.95 452.86 464.85 405.78 419.3 428.19 444.0 487.73 463.84
ci. min. 90% 324.16 718.7 1007.08 1113.02 1261.58 1353.45 1327.2 1282.65 1271.18 1183.72 1121.05 1113.68 1081.23 861.58 865.13 916.02 959.84 1021.93 984.24
ci. max. 90% 659.94 854.48 1112.44 1254.35 1392.05 1526.72 1461.72 1466.35 1484.23 1416.41 1363.81 1333.03 1297.22 1090.11 1101.28 1157.17 1209.89 1296.61 1245.47
geom. mean 474.2 779.96 1055.16 1172.58 1316.08 1417.75 1377.77 1334.91 1312.07 1209.91 1133.86 1133.59 1094.21 905.29 910.17 961.61 1006.63 1067.17 1030.01
median 517.17 783.82 1043.47 1250.62 1359.63 1496.73 1462.89 1488.09 1561.12 1532.5 1481.46 1313.63 1297.07 696.78 716.8 741.46 761.51 767.16 758.32
first quartile 438.23 783.82 1027.85 1103.48 1198.14 1327.91 1304.57 1154.78 1077.35 894.77 701.29 727.9 690.53 676.72 684.06 716.61 746.9 756.78 746.36
third quartile 570.99 866.75 1133.73 1300.24 1426.33 1586.15 1498.93 1561.79 1608.52 1613.13 1646.95 1648.46 1621.18 1353.06 1496.24 1596.91 1677.84 1793.15 1720.49
minimum 298.95 557.22 876.08 869.14 993.7 991.46 954.29 713.12 566.2 559.43 554.86 614.16 636.01 631.52 660.41 702.38 730.77 718.77 728.89
maximum 634.9 866.75 1195.79 1427.71 1562.19 1815.37 1667.57 1773.03 1798.74 1834.86 1858.6 1840.84 1849.09 1672.17 1690.17 1691.13 1764.3 1838.87 1779.22
baseline set1 difference -23.74 % -39.49 % 11.19 % 18.0 % -10.89 % 4.13 % -0.77 % -2.23 % 0.69 % -1.73 % -4.02 % -13.64 % -1.56 % -3.95 % -5.26 % -1.49 % 0.76 % 1.42 % -0.23 %
ttest p-value 0.1585 0.0 0.5811 0.4204 0.0 0.7574 0.062 0.9089 0.7172 0.5778 0.8109 0.5213 0.8389 0.6989 0.8553 0.649 0.8425 0.7911 0.8793
ttest equality SAME DIFF SAME SAME DIFF SAME DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
recrewr_bs
Record rewrite Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 1324.94 1555.0 1499.17 1460.62 1583.04 1556.63 1357.34 896.27 695.33 688.62 704.86 710.26 704.12
standard dev. 335.84 343.08 224.19 200.26 182.18 215.48 269.9 147.75 62.47 61.47 53.1 41.24 46.62
ci. min. 90% 1246.92 1471.91 1442.35 1407.27 1543.73 1508.45 1294.63 860.49 679.5 672.25 689.91 697.9 689.11
ci. max. 90% 1402.96 1638.09 1555.98 1513.97 1622.34 1604.8 1420.04 932.05 711.17 704.99 719.81 722.62 719.12
geom. mean 1262.4 1505.98 1479.5 1444.99 1570.99 1539.75 1330.97 885.54 692.52 685.79 702.73 709.07 702.61
median 1486.1 1730.6 1597.0 1537.14 1651.54 1623.33 1334.97 859.67 709.97 696.94 711.24 705.55 704.41
first quartile 1221.4 1340.54 1470.42 1369.53 1524.56 1484.39 1128.35 795.44 661.52 669.56 687.78 684.78 661.13
third quartile 1554.81 1790.52 1648.1 1599.81 1685.79 1682.68 1596.91 938.77 747.36 738.72 745.21 746.89 752.11
minimum 298.95 557.22 892.83 869.14 991.46 1008.62 949.1 713.12 566.2 559.43 554.86 614.16 631.52
maximum 1599.23 1858.6 1697.1 1645.34 1808.7 1838.87 1832.26 1242.93 810.93 772.43 762.13 763.13 760.72
set1mean val. 1324.94 1555.0 1499.17 1460.62 1583.04 1556.63 1357.34 896.27 695.33 688.62 704.86 710.26 704.12
standard dev. 335.84 343.08 224.19 200.26 182.18 215.48 269.9 147.75 62.47 61.47 53.1 41.24 46.62
ci. min. 90% 1246.92 1471.91 1442.35 1407.27 1543.73 1508.45 1294.63 860.49 679.5 672.25 689.91 697.9 689.11
ci. max. 90% 1402.96 1638.09 1555.98 1513.97 1622.34 1604.8 1420.04 932.05 711.17 704.99 719.81 722.62 719.12
geom. mean 1262.4 1505.98 1479.5 1444.99 1570.99 1539.75 1330.97 885.54 692.52 685.79 702.73 709.07 702.61
median 1486.1 1730.6 1597.0 1537.14 1651.54 1623.33 1334.97 859.67 709.97 696.94 711.24 705.55 704.41
first quartile 1221.4 1340.54 1470.42 1369.53 1524.56 1484.39 1128.35 795.44 661.52 669.56 687.78 684.78 661.13
third quartile 1554.81 1790.52 1648.1 1599.81 1685.79 1682.68 1596.91 938.77 747.36 738.72 745.21 746.89 752.11
minimum 298.95 557.22 892.83 869.14 991.46 1008.62 949.1 713.12 566.2 559.43 554.86 614.16 631.52
maximum 1599.23 1858.6 1697.1 1645.34 1808.7 1838.87 1832.26 1242.93 810.93 772.43 762.13 763.13 760.72
baseline set1 difference -0.39 % 1.62 % -0.96 % -4.14 % -1.19 % -0.27 % -5.14 % -6.64 % -4.61 % -1.71 % -4.14 % -5.47 % -5.76 %
ttest p-value 0.588 0.9905 0.5523 0.3098 0.0226 0.499 0.0759 0.5467 0.0586 0.1438 0.3364 0.0138 0.0029
ttest equality SAME SAME SAME SAME DIFF SAME DIFF SAME DIFF SAME SAME DIFF DIFF
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Strided Read

striderd_fs
Strided Read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 966.04 1623.19 2221.16 2413.28 2563.44 2623.74 2255.9 2036.84 1836.86 1699.39 1636.96 1380.82 1316.78 1157.41 1163.42 1174.09 1210.26 1232.2 106.78
standard dev. 263.33 438.64 403.78 443.6 327.79 568.93 553.04 561.21 611.68 570.9 528.06 455.81 506.3 418.54 433.69 425.95 451.98 437.4 64.23
ci. min. 90% 656.18 1329.37 2011.83 2218.86 2436.7 2424.7 2077.88 1868.63 1664.62 1547.3 1503.13 1270.43 1199.16 1039.55 1041.29 1054.15 1082.99 1109.03 88.69
ci. max. 90% 1275.89 1917.01 2430.49 2607.69 2690.18 2822.77 2433.92 2205.05 2009.11 1851.48 1770.79 1491.21 1434.41 1275.27 1285.54 1294.04 1337.54 1355.37 124.86
geom. mean 937.37 1553.25 2182.68 2372.24 2544.1 2563.16 2189.69 1955.2 1731.69 1598.7 1539.35 1300.3 1219.69 1091.71 1092.01 1104.74 1134.53 1160.23 83.3
median 974.91 1762.38 2275.11 2413.8 2550.86 2604.45 2251.27 1897.51 1775.08 1778.6 1861.38 1484.07 1399.52 864.32 840.71 841.73 850.24 862.98 120.1
first quartile 889.91 1511.46 2148.51 2193.41 2303.96 2278.97 1795.95 1641.05 1335.92 1246.3 1062.56 927.38 795.01 837.2 814.63 824.17 834.28 855.89 32.45
third quartile 1051.04 1949.81 2565.19 2579.87 2736.2 2890.63 2814.64 2651.09 2208.8 2080.61 2113.32 1700.13 1721.63 1709.54 1706.38 1699.94 1721.02 1740.6 170.23
minimum 634.9 715.37 1400.17 1475.94 2083.72 1524.95 1372.83 1012.23 829.76 733.67 711.75 710.48 721.34 767.46 797.13 812.66 827.19 850.91 27.65
maximum 1279.43 1949.81 2641.97 3135.27 3284.78 3671.34 3169.76 2763.75 2842.04 2832.26 2549.42 2149.99 2215.49 1885.35 1856.68 1803.04 2059.9 1864.75 192.77
set1mean val. 966.04 1623.19 2221.16 2413.28 2563.44 2623.74 2255.9 2036.84 1836.86 1699.39 1636.96 1380.82 1316.78 1157.41 1163.42 1174.09 1210.26 1232.2 106.78
standard dev. 263.33 438.64 403.78 443.6 327.79 568.93 553.04 561.21 611.68 570.9 528.06 455.81 506.3 418.54 433.69 425.95 451.98 437.4 64.23
ci. min. 90% 656.18 1329.37 2011.83 2218.86 2436.7 2424.7 2077.88 1868.63 1664.62 1547.3 1503.13 1270.43 1199.16 1039.55 1041.29 1054.15 1082.99 1109.03 88.69
ci. max. 90% 1275.89 1917.01 2430.49 2607.69 2690.18 2822.77 2433.92 2205.05 2009.11 1851.48 1770.79 1491.21 1434.41 1275.27 1285.54 1294.04 1337.54 1355.37 124.86
geom. mean 937.37 1553.25 2182.68 2372.24 2544.1 2563.16 2189.69 1955.2 1731.69 1598.7 1539.35 1300.3 1219.69 1091.71 1092.01 1104.74 1134.53 1160.23 83.3
median 974.91 1762.38 2275.11 2413.8 2550.86 2604.45 2251.27 1897.51 1775.08 1778.6 1861.38 1484.07 1399.52 864.32 840.71 841.73 850.24 862.98 120.1
first quartile 889.91 1511.46 2148.51 2193.41 2303.96 2278.97 1795.95 1641.05 1335.92 1246.3 1062.56 927.38 795.01 837.2 814.63 824.17 834.28 855.89 32.45
third quartile 1051.04 1949.81 2565.19 2579.87 2736.2 2890.63 2814.64 2651.09 2208.8 2080.61 2113.32 1700.13 1721.63 1709.54 1706.38 1699.94 1721.02 1740.6 170.23
minimum 634.9 715.37 1400.17 1475.94 2083.72 1524.95 1372.83 1012.23 829.76 733.67 711.75 710.48 721.34 767.46 797.13 812.66 827.19 850.91 27.65
maximum 1279.43 1949.81 2641.97 3135.27 3284.78 3671.34 3169.76 2763.75 2842.04 2832.26 2549.42 2149.99 2215.49 1885.35 1856.68 1803.04 2059.9 1864.75 192.77
baseline set1 difference 0.0 % 14.53 % 9.98 % -6.44 % -4.36 % 12.08 % 7.63 % -3.61 % -0.8 % 11.65 % 14.93 % -3.02 % -5.06 % 1.0 % -1.46 % -0.62 % -0.55 % -1.01 % 57.12 %
ttest p-value 0.5965 0.6242 0.2417 0.8362 0.8455 0.1123 0.152 0.6991 0.7665 0.9093 0.381 0.8058 0.6683 0.8775 0.9131 0.3657 0.3704 0.3802 0.0057
ttest equality SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF
striderd_bs
Strided Read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 1702.67 2111.24 2217.57 2280.51 1989.21 1913.52 1639.49 1133.63 804.64 771.76 770.25 744.21 732.19
standard dev. 450.5 694.9 527.02 343.6 645.33 644.65 544.34 371.92 246.07 229.14 230.33 220.89 231.64
ci. min. 90% 1598.01 1942.94 2084.01 2188.97 1849.99 1769.39 1513.03 1043.56 742.28 710.72 705.39 678.01 657.63
ci. max. 90% 1807.33 2279.53 2351.13 2372.04 2128.44 2057.64 1765.96 1223.7 867.01 832.81 835.11 810.42 806.76
geom. mean 1643.15 2005.66 2157.19 2255.31 1574.95 1500.0 1289.9 956.16 722.06 706.74 703.54 680.28 662.42
median 1594.19 1947.66 2094.01 2227.06 2035.05 1816.22 1752.55 1229.79 843.21 817.01 829.25 825.4 825.41
first quartile 1384.36 1595.16 1790.74 2055.76 1747.71 1715.98 1547.5 1019.19 808.73 733.4 788.31 797.65 795.73
third quartile 1949.81 2381.76 2705.9 2540.59 2270.43 2291.32 1870.11 1365.02 866.95 835.95 852.05 841.35 841.35
minimum 634.9 715.37 1475.94 1706.66 27.65 29.54 31.57 63.65 103.29 149.54 160.2 169.49 169.8
maximum 2626.54 3671.34 3169.76 2843.17 2938.79 2832.26 2549.42 1548.3 1210.89 1123.6 1058.78 931.32 856.75
set1mean val. 1702.67 2111.24 2217.57 2280.51 1989.21 1913.52 1639.49 1133.63 804.64 771.76 770.25 744.21 732.19
standard dev. 450.5 694.9 527.02 343.6 645.33 644.65 544.34 371.92 246.07 229.14 230.33 220.89 231.64
ci. min. 90% 1598.01 1942.94 2084.01 2188.97 1849.99 1769.39 1513.03 1043.56 742.28 710.72 705.39 678.01 657.63
ci. max. 90% 1807.33 2279.53 2351.13 2372.04 2128.44 2057.64 1765.96 1223.7 867.01 832.81 835.11 810.42 806.76
geom. mean 1643.15 2005.66 2157.19 2255.31 1574.95 1500.0 1289.9 956.16 722.06 706.74 703.54 680.28 662.42
median 1594.19 1947.66 2094.01 2227.06 2035.05 1816.22 1752.55 1229.79 843.21 817.01 829.25 825.4 825.41
first quartile 1384.36 1595.16 1790.74 2055.76 1747.71 1715.98 1547.5 1019.19 808.73 733.4 788.31 797.65 795.73
third quartile 1949.81 2381.76 2705.9 2540.59 2270.43 2291.32 1870.11 1365.02 866.95 835.95 852.05 841.35 841.35
minimum 634.9 715.37 1475.94 1706.66 27.65 29.54 31.57 63.65 103.29 149.54 160.2 169.49 169.8
maximum 2626.54 3671.34 3169.76 2843.17 2938.79 2832.26 2549.42 1548.3 1210.89 1123.6 1058.78 931.32 856.75
baseline set1 difference -1.56 % -2.08 % 7.16 % 4.03 % 3.15 % -10.93 % -6.15 % -8.14 % -0.78 % -1.46 % 0.19 % 1.46 % 0.38 %
ttest p-value 0.7434 0.7885 0.1207 0.0769 0.3854 0.8403 0.1154 0.2097 0.8422 0.8421 0.7435 0.8 0.8873
ttest equality SAME SAME SAME DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME
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Fwrite

fwrite_fs
Fwrite File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 449.89 753.28 970.05 1005.92 1077.84 1038.57 1009.74 953.67 803.94 707.26 635.46 618.36 618.99 589.48 505.78 83.88 80.33 66.38 64.02
standard dev. 33.03 231.05 146.78 143.53 109.1 129.43 123.44 100.67 84.04 96.42 78.27 89.66 72.7 70.58 52.12 7.37 4.92 1.96 1.01
ci. min. 90% 411.03 598.52 893.96 943.02 1035.66 993.29 970.01 923.5 780.28 681.57 615.63 596.64 602.1 569.61 491.1 81.81 78.95 65.83 63.74
ci. max. 90% 488.75 908.04 1046.15 1068.83 1120.02 1083.85 1049.47 983.85 827.61 732.94 655.3 640.08 635.88 609.36 520.46 85.96 81.72 66.93 64.31
geom. mean 449.02 713.33 960.82 995.61 1072.31 1031.11 1002.4 948.15 799.63 700.42 630.53 611.73 614.72 585.51 503.23 83.58 80.19 66.35 64.02
median 433.37 825.28 919.13 1058.97 1095.44 1003.95 1024.26 967.86 789.63 727.43 645.98 638.9 638.39 578.13 503.71 82.61 80.29 66.34 64.17
first quartile 433.37 689.83 864.53 935.57 1016.07 954.89 951.5 905.19 750.94 661.82 574.41 548.09 555.28 532.43 462.38 80.66 77.21 65.33 63.15
third quartile 449.89 892.39 1014.36 1112.61 1164.83 1104.95 1068.34 1018.43 855.44 748.6 692.36 691.73 670.5 630.09 539.63 87.33 81.96 67.32 64.7
minimum 433.37 342.03 821.19 762.91 822.27 816.89 742.19 681.16 593.86 423.56 473.6 452.51 497.81 496.65 439.6 72.44 69.77 62.27 62.02
maximum 499.42 969.3 1315.83 1204.64 1226.08 1317.95 1269.76 1144.23 955.25 902.5 760.02 794.6 777.49 754.91 594.65 101.18 92.11 71.64 66.23
set1mean val. 449.89 753.28 970.05 1005.92 1077.84 1038.57 1009.74 953.67 803.94 707.26 635.46 618.36 618.99 589.48 505.78 83.88 80.33 66.38 64.02
standard dev. 33.03 231.05 146.78 143.53 109.1 129.43 123.44 100.67 84.04 96.42 78.27 89.66 72.7 70.58 52.12 7.37 4.92 1.96 1.01
ci. min. 90% 411.03 598.52 893.96 943.02 1035.66 993.29 970.01 923.5 780.28 681.57 615.63 596.64 602.1 569.61 491.1 81.81 78.95 65.83 63.74
ci. max. 90% 488.75 908.04 1046.15 1068.83 1120.02 1083.85 1049.47 983.85 827.61 732.94 655.3 640.08 635.88 609.36 520.46 85.96 81.72 66.93 64.31
geom. mean 449.02 713.33 960.82 995.61 1072.31 1031.11 1002.4 948.15 799.63 700.42 630.53 611.73 614.72 585.51 503.23 83.58 80.19 66.35 64.02
median 433.37 825.28 919.13 1058.97 1095.44 1003.95 1024.26 967.86 789.63 727.43 645.98 638.9 638.39 578.13 503.71 82.61 80.29 66.34 64.17
first quartile 433.37 689.83 864.53 935.57 1016.07 954.89 951.5 905.19 750.94 661.82 574.41 548.09 555.28 532.43 462.38 80.66 77.21 65.33 63.15
third quartile 449.89 892.39 1014.36 1112.61 1164.83 1104.95 1068.34 1018.43 855.44 748.6 692.36 691.73 670.5 630.09 539.63 87.33 81.96 67.32 64.7
minimum 433.37 342.03 821.19 762.91 822.27 816.89 742.19 681.16 593.86 423.56 473.6 452.51 497.81 496.65 439.6 72.44 69.77 62.27 62.02
maximum 499.42 969.3 1315.83 1204.64 1226.08 1317.95 1269.76 1144.23 955.25 902.5 760.02 794.6 777.49 754.91 594.65 101.18 92.11 71.64 66.23
baseline set1 difference -33.09 % -31.44 % -20.43 % -8.86 % 14.83 % -12.07 % -7.37 % -5.45 % -7.93 % -1.86 % -7.12 % -5.04 % -6.35 % -5.72 % -10.63 % -41.02 % 17.16 % 273.68 % 384.79 %
ttest p-value 0.088 0.0005 0.0034 0.131 0.3569 0.0054 0.0019 0.007 0.0097 0.133 0.0262 0.0522 0.0085 0.0683 0.0 0.0 0.0 0.0 0.0
ttest equality DIFF DIFF DIFF SAME SAME DIFF DIFF DIFF DIFF SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
fwrite_bs
Fwrite Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 788.95 881.1 848.89 910.0 641.57 576.85 490.48 407.1 381.75 378.77 357.36 349.55 322.16
standard dev. 178.61 184.81 147.56 205.37 389.81 370.61 328.5 264.8 250.75 261.59 263.99 284.51 286.46
ci. min. 90% 747.46 836.35 811.49 855.29 557.47 493.99 414.16 342.97 318.2 309.08 283.02 264.27 229.95
ci. max. 90% 830.45 925.86 886.28 964.71 725.66 659.7 566.8 471.23 445.3 448.45 431.7 434.82 414.37
geom. mean 766.13 862.14 836.56 887.19 426.78 384.59 329.96 282.17 261.95 251.64 231.56 215.82 195.05
median 801.55 869.83 849.71 941.96 693.4 621.16 539.82 481.55 480.81 497.02 477.13 301.19 99.39
first quartile 668.57 733.17 725.98 718.19 80.14 82.48 80.79 79.47 78.8 79.19 81.27 77.42 71.54
third quartile 957.71 1015.1 953.76 1075.43 956.58 800.37 642.04 519.15 527.38 566.15 560.75 618.58 597.72
minimum 342.03 462.79 642.13 600.87 62.27 62.64 62.79 62.64 62.77 62.58 62.02 64.23 64.51
maximum 1076.07 1315.83 1203.57 1317.95 1269.76 1269.76 1144.23 970.54 793.05 757.31 794.6 777.49 754.91
set1mean val. 788.95 881.1 848.89 910.0 641.57 576.85 490.48 407.1 381.75 378.77 357.36 349.55 322.16
standard dev. 178.61 184.81 147.56 205.37 389.81 370.61 328.5 264.8 250.75 261.59 263.99 284.51 286.46
ci. min. 90% 747.46 836.35 811.49 855.29 557.47 493.99 414.16 342.97 318.2 309.08 283.02 264.27 229.95
ci. max. 90% 830.45 925.86 886.28 964.71 725.66 659.7 566.8 471.23 445.3 448.45 431.7 434.82 414.37
geom. mean 766.13 862.14 836.56 887.19 426.78 384.59 329.96 282.17 261.95 251.64 231.56 215.82 195.05
median 801.55 869.83 849.71 941.96 693.4 621.16 539.82 481.55 480.81 497.02 477.13 301.19 99.39
first quartile 668.57 733.17 725.98 718.19 80.14 82.48 80.79 79.47 78.8 79.19 81.27 77.42 71.54
third quartile 957.71 1015.1 953.76 1075.43 956.58 800.37 642.04 519.15 527.38 566.15 560.75 618.58 597.72
minimum 342.03 462.79 642.13 600.87 62.27 62.64 62.79 62.64 62.77 62.58 62.02 64.23 64.51
maximum 1076.07 1315.83 1203.57 1317.95 1269.76 1269.76 1144.23 970.54 793.05 757.31 794.6 777.49 754.91
baseline set1 difference -11.75 % -13.63 % -9.28 % 10.2 % -5.06 % -9.02 % -10.73 % -6.57 % -6.75 % -7.04 % -10.91 % -9.0 % -44.63 %
ttest p-value 0.002 0.0153 0.024 0.8895 0.519 0.5503 0.5243 0.6917 0.741 0.9983 0.9204 0.7697 0.8149
ttest equality DIFF DIFF DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
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Frewrite

frewrite_fs
Frewrite File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 609.86 847.59 1014.9 1148.95 1173.94 1053.9 1036.31 913.25 823.37 761.09 673.84 634.25 613.84 591.43 492.25 82.11 77.35 64.77 63.39
standard dev. 58.98 254.29 231.74 247.4 222.7 191.47 169.63 135.95 98.25 135.0 102.49 99.49 89.8 103.6 53.0 2.79 5.16 2.12 0.92
ci. min. 90% 540.47 677.26 894.76 1040.52 1087.83 986.92 981.71 872.5 795.7 725.12 647.87 610.16 592.98 562.26 477.32 81.32 75.9 64.18 63.13
ci. max. 90% 679.26 1017.93 1135.04 1257.37 1260.04 1120.89 1090.92 954.0 851.04 797.05 699.82 658.35 634.7 620.6 507.17 82.89 78.81 65.37 63.65
geom. mean 607.71 808.91 990.49 1125.17 1155.74 1039.26 1023.62 904.24 817.55 748.28 666.64 626.57 607.26 583.45 489.53 82.06 77.18 64.74 63.38
median 614.63 866.75 980.99 1151.72 1158.82 984.01 994.57 882.53 819.03 785.07 666.95 639.29 631.35 562.9 484.25 81.16 77.69 64.13 63.56
first quartile 564.01 727.17 956.29 967.01 1020.83 926.62 957.77 814.73 750.62 690.18 621.05 553.98 546.49 508.38 451.45 80.58 74.88 63.62 63.0
third quartile 660.49 1033.53 1081.55 1216.14 1231.93 1077.8 1086.82 975.65 902.54 866.77 717.21 705.7 674.93 638.6 527.72 82.78 81.21 65.11 63.94
minimum 549.69 432.26 602.32 781.09 892.24 856.95 716.33 713.36 591.01 421.94 510.32 461.55 444.34 463.35 406.79 76.89 65.97 61.6 60.0
maximum 660.49 1137.55 1531.01 1642.39 1738.29 1542.9 1454.73 1319.12 1075.24 1009.6 981.13 887.9 799.12 875.27 586.17 91.38 85.26 70.74 65.07
set1mean val. 609.86 847.59 1014.9 1148.95 1173.94 1053.9 1036.31 913.25 823.37 761.09 673.84 634.25 613.84 591.43 492.25 82.11 77.35 64.77 63.39
standard dev. 58.98 254.29 231.74 247.4 222.7 191.47 169.63 135.95 98.25 135.0 102.49 99.49 89.8 103.6 53.0 2.79 5.16 2.12 0.92
ci. min. 90% 540.47 677.26 894.76 1040.52 1087.83 986.92 981.71 872.5 795.7 725.12 647.87 610.16 592.98 562.26 477.32 81.32 75.9 64.18 63.13
ci. max. 90% 679.26 1017.93 1135.04 1257.37 1260.04 1120.89 1090.92 954.0 851.04 797.05 699.82 658.35 634.7 620.6 507.17 82.89 78.81 65.37 63.65
geom. mean 607.71 808.91 990.49 1125.17 1155.74 1039.26 1023.62 904.24 817.55 748.28 666.64 626.57 607.26 583.45 489.53 82.06 77.18 64.74 63.38
median 614.63 866.75 980.99 1151.72 1158.82 984.01 994.57 882.53 819.03 785.07 666.95 639.29 631.35 562.9 484.25 81.16 77.69 64.13 63.56
first quartile 564.01 727.17 956.29 967.01 1020.83 926.62 957.77 814.73 750.62 690.18 621.05 553.98 546.49 508.38 451.45 80.58 74.88 63.62 63.0
third quartile 660.49 1033.53 1081.55 1216.14 1231.93 1077.8 1086.82 975.65 902.54 866.77 717.21 705.7 674.93 638.6 527.72 82.78 81.21 65.11 63.94
minimum 549.69 432.26 602.32 781.09 892.24 856.95 716.33 713.36 591.01 421.94 510.32 461.55 444.34 463.35 406.79 76.89 65.97 61.6 60.0
maximum 660.49 1137.55 1531.01 1642.39 1738.29 1542.9 1454.73 1319.12 1075.24 1009.6 981.13 887.9 799.12 875.27 586.17 91.38 85.26 70.74 65.07
baseline set1 difference 48.95 % -16.2 % 6.73 % 2.64 % 4.61 % 1.09 % 1.85 % -5.56 % -0.69 % 4.08 % -10.02 % -10.44 % -8.72 % -8.09 % -14.53 % -40.06 % -4.34 % 290.16 % 379.8 %
ttest p-value 0.0647 0.2642 0.4566 0.8466 0.287 0.1926 0.5884 0.4018 0.3471 0.8352 0.013 0.0161 0.0154 0.126 0.0 0.0 0.1198 0.0 0.0
ttest equality DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF SAME DIFF DIFF SAME DIFF DIFF
frewrite_bs
Frewrite Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 806.84 875.83 928.47 942.42 651.45 595.48 509.01 422.19 392.18 390.1 378.17 345.81 321.7
standard dev. 158.45 208.32 244.91 264.94 411.43 396.07 349.72 285.28 277.01 291.29 295.52 287.38 300.45
ci. min. 90% 770.03 825.37 866.41 871.84 562.69 506.93 427.76 353.1 321.97 312.5 294.95 259.67 224.98
ci. max. 90% 843.65 926.28 990.54 1013.0 740.21 684.03 590.25 491.29 462.38 467.7 461.39 431.94 418.41
geom. mean 791.58 851.93 900.64 911.54 430.54 388.59 336.69 286.86 262.74 250.86 234.85 210.98 188.95
median 812.65 891.62 892.51 860.46 687.91 640.96 537.35 466.63 470.53 476.41 456.71 272.3 87.89
first quartile 654.67 694.2 721.59 742.52 82.26 82.72 80.88 80.13 76.82 77.8 75.36 77.11 70.46
third quartile 919.99 984.06 1000.26 1066.95 901.9 855.8 711.41 589.34 524.32 556.98 611.68 615.19 570.87
minimum 549.69 432.26 643.4 656.7 62.96 62.22 62.88 63.05 62.22 60.0 62.85 61.72 63.59
maximum 1137.55 1531.01 1642.39 1738.29 1542.9 1454.73 1319.12 1075.24 1009.6 981.13 887.9 799.12 875.27
set1mean val. 806.84 875.83 928.47 942.42 651.45 595.48 509.01 422.19 392.18 390.1 378.17 345.81 321.7
standard dev. 158.45 208.32 244.91 264.94 411.43 396.07 349.72 285.28 277.01 291.29 295.52 287.38 300.45
ci. min. 90% 770.03 825.37 866.41 871.84 562.69 506.93 427.76 353.1 321.97 312.5 294.95 259.67 224.98
ci. max. 90% 843.65 926.28 990.54 1013.0 740.21 684.03 590.25 491.29 462.38 467.7 461.39 431.94 418.41
geom. mean 791.58 851.93 900.64 911.54 430.54 388.59 336.69 286.86 262.74 250.86 234.85 210.98 188.95
median 812.65 891.62 892.51 860.46 687.91 640.96 537.35 466.63 470.53 476.41 456.71 272.3 87.89
first quartile 654.67 694.2 721.59 742.52 82.26 82.72 80.88 80.13 76.82 77.8 75.36 77.11 70.46
third quartile 919.99 984.06 1000.26 1066.95 901.9 855.8 711.41 589.34 524.32 556.98 611.68 615.19 570.87
minimum 549.69 432.26 643.4 656.7 62.96 62.22 62.88 63.05 62.22 60.0 62.85 61.72 63.59
maximum 1137.55 1531.01 1642.39 1738.29 1542.9 1454.73 1319.12 1075.24 1009.6 981.13 887.9 799.12 875.27
baseline set1 difference -0.91 % 2.07 % 2.86 % -2.09 % -6.91 % -6.29 % -8.92 % -5.61 % -5.19 % -8.26 % -14.78 % -26.37 % -50.0 %
ttest p-value 0.6231 0.4477 0.5591 0.8942 0.8383 0.9409 0.5916 0.5392 0.786 0.9811 0.9288 0.7779 0.6552
ttest equality SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
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Fread

fread_fs
Fread File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 614.63 1377.32 1709.27 1966.45 2115.76 2120.23 1834.68 1758.89 1636.37 1353.28 1555.77 1403.17 1291.53 1129.56 1164.97 173.01 109.7 74.54 75.72
standard dev. 52.95 399.98 208.2 292.21 383.11 309.05 282.31 305.18 388.49 355.09 525.08 491.75 473.11 404.09 424.9 284.36 0.08 4.89 6.18
ci. min. 90% 552.33 1109.39 1601.33 1838.39 1967.63 2012.11 1743.8 1667.42 1526.98 1258.68 1422.7 1284.08 1181.62 1015.77 1045.32 92.93 109.68 73.16 73.98
ci. max. 90% 676.94 1645.24 1817.2 2094.52 2263.89 2228.35 1925.55 1850.36 1745.77 1447.87 1688.84 1522.27 1401.44 1243.35 1284.62 253.08 109.72 75.91 77.46
geom. mean 612.92 1324.42 1696.25 1944.47 2074.93 2096.4 1814.6 1732.51 1587.59 1303.33 1458.17 1310.81 1203.18 1067.59 1096.93 125.04 109.7 74.38 75.49
median 614.63 1386.26 1733.5 2024.47 2117.93 2103.07 1736.92 1735.7 1606.82 1455.02 1646.16 1557.32 1428.46 855.49 857.64 109.61 109.72 72.69 72.82
first quartile 568.78 1194.67 1692.03 1820.63 2004.42 1950.43 1651.82 1571.8 1399.3 1090.78 1000.94 851.44 781.95 822.4 822.39 109.58 109.7 70.89 71.16
third quartile 660.49 1574.95 1784.77 2228.9 2409.29 2452.17 1989.51 1970.06 1911.27 1550.01 2086.84 1767.76 1679.24 1568.4 1687.91 109.63 109.74 77.94 81.32
minimum 568.78 783.82 1195.79 1313.27 1005.13 1288.79 1301.28 1141.74 848.91 735.27 727.8 713.08 733.81 777.42 795.84 109.53 109.32 67.07 69.28
maximum 660.49 2073.18 1938.61 2436.02 2626.54 2498.92 2451.06 2282.48 2227.69 2134.61 2191.72 2218.5 2109.16 1854.53 1979.89 1680.98 109.77 84.53 92.41
set1mean val. 614.63 1377.32 1709.27 1966.45 2115.76 2120.23 1834.68 1758.89 1636.37 1353.28 1555.77 1403.17 1291.53 1129.56 1164.97 173.01 109.7 74.54 75.72
standard dev. 52.95 399.98 208.2 292.21 383.11 309.05 282.31 305.18 388.49 355.09 525.08 491.75 473.11 404.09 424.9 284.36 0.08 4.89 6.18
ci. min. 90% 552.33 1109.39 1601.33 1838.39 1967.63 2012.11 1743.8 1667.42 1526.98 1258.68 1422.7 1284.08 1181.62 1015.77 1045.32 92.93 109.68 73.16 73.98
ci. max. 90% 676.94 1645.24 1817.2 2094.52 2263.89 2228.35 1925.55 1850.36 1745.77 1447.87 1688.84 1522.27 1401.44 1243.35 1284.62 253.08 109.72 75.91 77.46
geom. mean 612.92 1324.42 1696.25 1944.47 2074.93 2096.4 1814.6 1732.51 1587.59 1303.33 1458.17 1310.81 1203.18 1067.59 1096.93 125.04 109.7 74.38 75.49
median 614.63 1386.26 1733.5 2024.47 2117.93 2103.07 1736.92 1735.7 1606.82 1455.02 1646.16 1557.32 1428.46 855.49 857.64 109.61 109.72 72.69 72.82
first quartile 568.78 1194.67 1692.03 1820.63 2004.42 1950.43 1651.82 1571.8 1399.3 1090.78 1000.94 851.44 781.95 822.4 822.39 109.58 109.7 70.89 71.16
third quartile 660.49 1574.95 1784.77 2228.9 2409.29 2452.17 1989.51 1970.06 1911.27 1550.01 2086.84 1767.76 1679.24 1568.4 1687.91 109.63 109.74 77.94 81.32
minimum 568.78 783.82 1195.79 1313.27 1005.13 1288.79 1301.28 1141.74 848.91 735.27 727.8 713.08 733.81 777.42 795.84 109.53 109.32 67.07 69.28
maximum 660.49 2073.18 1938.61 2436.02 2626.54 2498.92 2451.06 2282.48 2227.69 2134.61 2191.72 2218.5 2109.16 1854.53 1979.89 1680.98 109.77 84.53 92.41
baseline set1 difference 25.04 % 4.94 % 0.0 % 0.81 % 4.87 % 21.04 % -2.05 % 12.13 % -1.82 % -8.74 % 7.26 % -3.98 % -7.71 % -5.04 % -1.03 % -87.32 % -87.31 % -91.7 % -0.35 %
ttest p-value 0.0395 0.8342 0.171 0.9229 0.1101 0.0 0.5433 0.2621 0.9332 0.0256 0.5393 0.3272 0.1741 0.4572 0.739 0.0 0.0 0.0 0.0816
ttest equality DIFF SAME SAME SAME SAME DIFF SAME SAME SAME DIFF SAME SAME SAME SAME SAME DIFF DIFF DIFF DIFF
fread_bs
Fread Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 1602.85 1833.45 1877.75 1940.03 1411.02 1353.96 1131.51 797.92 593.28 532.4 494.93 439.71 429.21
standard dev. 384.4 348.48 320.78 300.01 846.84 803.36 729.33 536.62 397.86 370.62 366.87 354.24 370.49
ci. min. 90% 1513.54 1749.05 1796.45 1860.11 1228.32 1174.36 962.07 667.96 492.45 433.67 391.62 333.53 309.95
ci. max. 90% 1692.15 1917.84 1959.04 2019.96 1593.71 1533.57 1300.95 927.88 694.11 631.14 598.24 545.89 548.47
geom. mean 1540.46 1797.38 1851.23 1917.22 832.83 805.24 653.72 486.72 382.39 339.61 307.83 267.26 250.37
median 1641.26 1785.41 1859.96 2040.07 1739.24 1646.49 1422.07 1016.04 769.45 745.65 746.65 411.42 109.74
first quartile 1430.58 1589.88 1587.66 1640.38 109.64 109.72 109.73 109.7 109.66 109.6 109.54 104.6 83.16
third quartile 1856.17 2080.17 2102.22 2152.5 1988.44 1811.64 1665.58 1162.96 855.98 822.48 822.48 809.34 818.04
minimum 568.78 783.82 1288.79 1483.45 69.26 70.28 70.18 67.07 70.89 69.37 68.66 70.79 69.94
maximum 2152.15 2501.24 2498.92 2626.54 2600.49 2452.17 2134.61 1798.89 1246.89 1116.13 957.4 848.08 874.89
set1mean val. 1602.85 1833.45 1877.75 1940.03 1411.02 1353.96 1131.51 797.92 593.28 532.4 494.93 439.71 429.21
standard dev. 384.4 348.48 320.78 300.01 846.84 803.36 729.33 536.62 397.86 370.62 366.87 354.24 370.49
ci. min. 90% 1513.54 1749.05 1796.45 1860.11 1228.32 1174.36 962.07 667.96 492.45 433.67 391.62 333.53 309.95
ci. max. 90% 1692.15 1917.84 1959.04 2019.96 1593.71 1533.57 1300.95 927.88 694.11 631.14 598.24 545.89 548.47
geom. mean 1540.46 1797.38 1851.23 1917.22 832.83 805.24 653.72 486.72 382.39 339.61 307.83 267.26 250.37
median 1641.26 1785.41 1859.96 2040.07 1739.24 1646.49 1422.07 1016.04 769.45 745.65 746.65 411.42 109.74
first quartile 1430.58 1589.88 1587.66 1640.38 109.64 109.72 109.73 109.7 109.66 109.6 109.54 104.6 83.16
third quartile 1856.17 2080.17 2102.22 2152.5 1988.44 1811.64 1665.58 1162.96 855.98 822.48 822.48 809.34 818.04
minimum 568.78 783.82 1288.79 1483.45 69.26 70.28 70.18 67.07 70.89 69.37 68.66 70.79 69.94
maximum 2152.15 2501.24 2498.92 2626.54 2600.49 2452.17 2134.61 1798.89 1246.89 1116.13 957.4 848.08 874.89
baseline set1 difference 4.45 % 3.38 % -4.61 % 4.28 % -5.55 % -11.86 % -23.08 % -22.86 % -10.51 % -11.96 % -10.07 % -50.73 % -86.87 %
ttest p-value 0.5422 0.1638 0.835 0.7455 0.0074 0.0015 0.0001 0.0 0.0043 0.0009 0.0011 0.0004 0.0011
ttest equality SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
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Freread

freread_fs
Freread File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinemean val. 1742.41 2306.05 2559.66 2548.74 2676.59 2592.24 2188.95 1930.46 1703.32 1482.32 1564.85 1348.52 1322.54 1156.31 1165.18 1103.81 1126.39 1170.3 84.57
standard dev. 236.4 515.04 328.91 386.19 254.12 204.96 381.23 343.57 416.2 404.99 595.41 497.12 378.67 404.08 415.92 367.94 369.62 378.42 6.79
ci. min. 90% 1464.24 1961.06 2389.15 2379.48 2578.34 2520.54 2066.23 1827.49 1586.12 1374.43 1413.96 1228.13 1234.57 1042.52 1048.06 1000.2 1022.31 1063.73 82.65
ci. max. 90% 2020.58 2651.04 2730.18 2717.99 2774.84 2663.95 2311.67 2033.44 1820.52 1590.21 1715.75 1468.92 1410.52 1270.1 1282.3 1207.42 1230.47 1276.86 86.48
geom. mean 1729.12 2246.3 2541.08 2519.44 2664.51 2584.3 2156.38 1898.17 1647.52 1420.56 1433.04 1251.75 1266.82 1092.94 1099.33 1048.81 1070.9 1113.26 84.31
median 1860.61 2558.86 2539.59 2579.87 2780.43 2599.0 2083.38 1872.05 1695.15 1591.75 1839.15 1574.63 1417.89 859.68 853.95 833.83 839.84 860.92 81.48
first quartile 1742.41 1949.81 2256.02 2391.58 2501.24 2452.17 1931.79 1751.71 1439.88 1144.26 909.43 803.6 943.05 822.1 826.77 797.24 810.92 840.15 79.72
third quartile 1860.61 2613.05 2641.97 2861.48 2832.35 2776.87 2462.73 2292.46 2024.8 1736.22 2098.41 1676.71 1665.01 1615.33 1672.34 1501.3 1544.45 1613.26 90.47
minimum 1387.8 1320.99 2198.77 1729.05 2152.15 2195.46 1452.71 1028.62 824.38 741.06 708.83 715.63 755.4 808.63 809.44 783.42 804.71 831.88 77.77
maximum 1860.61 2775.61 3149.91 3135.27 2985.5 2915.86 2812.66 2462.01 2293.47 2167.15 2252.34 2190.69 1830.83 1871.13 1891.3 1813.83 1663.88 1669.36 104.62
set1mean val. 1742.41 2306.05 2559.66 2548.74 2676.59 2592.24 2188.95 1930.46 1703.32 1482.32 1564.85 1348.52 1322.54 1156.31 1165.18 1103.81 1126.39 1170.3 84.57
standard dev. 236.4 515.04 328.91 386.19 254.12 204.96 381.23 343.57 416.2 404.99 595.41 497.12 378.67 404.08 415.92 367.94 369.62 378.42 6.79
ci. min. 90% 1464.24 1961.06 2389.15 2379.48 2578.34 2520.54 2066.23 1827.49 1586.12 1374.43 1413.96 1228.13 1234.57 1042.52 1048.06 1000.2 1022.31 1063.73 82.65
ci. max. 90% 2020.58 2651.04 2730.18 2717.99 2774.84 2663.95 2311.67 2033.44 1820.52 1590.21 1715.75 1468.92 1410.52 1270.1 1282.3 1207.42 1230.47 1276.86 86.48
geom. mean 1729.12 2246.3 2541.08 2519.44 2664.51 2584.3 2156.38 1898.17 1647.52 1420.56 1433.04 1251.75 1266.82 1092.94 1099.33 1048.81 1070.9 1113.26 84.31
median 1860.61 2558.86 2539.59 2579.87 2780.43 2599.0 2083.38 1872.05 1695.15 1591.75 1839.15 1574.63 1417.89 859.68 853.95 833.83 839.84 860.92 81.48
first quartile 1742.41 1949.81 2256.02 2391.58 2501.24 2452.17 1931.79 1751.71 1439.88 1144.26 909.43 803.6 943.05 822.1 826.77 797.24 810.92 840.15 79.72
third quartile 1860.61 2613.05 2641.97 2861.48 2832.35 2776.87 2462.73 2292.46 2024.8 1736.22 2098.41 1676.71 1665.01 1615.33 1672.34 1501.3 1544.45 1613.26 90.47
minimum 1387.8 1320.99 2198.77 1729.05 2152.15 2195.46 1452.71 1028.62 824.38 741.06 708.83 715.63 755.4 808.63 809.44 783.42 804.71 831.88 77.77
maximum 1860.61 2775.61 3149.91 3135.27 2985.5 2915.86 2812.66 2462.01 2293.47 2167.15 2252.34 2190.69 1830.83 1871.13 1891.3 1813.83 1663.88 1669.36 104.62
baseline set1 difference -49.13 % -35.38 % -19.38 % -17.71 % -1.75 % -12.6 % -16.19 % -10.71 % -4.89 % -1.9 % 19.02 % -0.37 % -7.69 % -1.12 % -1.67 % -5.94 % -6.39 % -2.99 % 2.72 %
ttest p-value 0.0 0.0011 0.0003 0.0 0.209 0.0084 0.0038 0.2358 0.411 0.3661 0.5835 0.4477 0.7376 0.85 0.7058 0.1368 0.0967 0.079 0.0177
ttest equality DIFF DIFF DIFF DIFF SAME DIFF DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF
freread_bs
Freread Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinemean val. 2005.29 2192.84 2214.08 2183.02 1845.85 1727.36 1502.74 1092.79 814.64 739.3 727.52 737.98 719.77
standard dev. 390.92 475.38 475.21 451.45 607.32 547.39 482.51 361.66 260.37 233.87 236.89 254.94 265.39
ci. min. 90% 1914.48 2077.71 2093.65 2062.76 1714.83 1604.98 1390.64 1005.2 748.65 677.0 660.82 661.57 634.35
ci. max. 90% 2096.11 2307.97 2334.51 2303.29 1976.87 1849.74 1614.83 1180.38 880.63 801.61 794.23 814.4 805.2
geom. mean 1967.63 2141.93 2165.71 2137.82 1572.27 1469.27 1274.37 937.12 711.22 644.24 629.28 624.59 597.33
median 1912.84 2139.86 2111.32 2169.77 1732.8 1685.23 1551.68 1139.59 840.22 806.83 809.87 815.55 815.76
first quartile 1702.04 1792.39 1757.85 1720.4 1656.33 1651.89 1440.07 1003.3 814.63 731.57 726.09 788.1 803.11
third quartile 2402.69 2611.89 2645.46 2512.8 2219.13 1937.8 1699.17 1300.13 874.78 832.14 829.85 840.01 837.44
minimum 1387.8 1320.99 1575.55 1524.52 79.83 79.13 78.75 77.77 80.06 78.46 78.09 78.03 78.2
maximum 2641.97 3149.91 3149.91 3135.27 2985.5 2915.86 2292.46 1825.51 1272.62 1082.29 964.31 954.42 946.24
set1mean val. 2005.29 2192.84 2214.08 2183.02 1845.85 1727.36 1502.74 1092.79 814.64 739.3 727.52 737.98 719.77
standard dev. 390.92 475.38 475.21 451.45 607.32 547.39 482.51 361.66 260.37 233.87 236.89 254.94 265.39
ci. min. 90% 1914.48 2077.71 2093.65 2062.76 1714.83 1604.98 1390.64 1005.2 748.65 677.0 660.82 661.57 634.35
ci. max. 90% 2096.11 2307.97 2334.51 2303.29 1976.87 1849.74 1614.83 1180.38 880.63 801.61 794.23 814.4 805.2
geom. mean 1967.63 2141.93 2165.71 2137.82 1572.27 1469.27 1274.37 937.12 711.22 644.24 629.28 624.59 597.33
median 1912.84 2139.86 2111.32 2169.77 1732.8 1685.23 1551.68 1139.59 840.22 806.83 809.87 815.55 815.76
first quartile 1702.04 1792.39 1757.85 1720.4 1656.33 1651.89 1440.07 1003.3 814.63 731.57 726.09 788.1 803.11
third quartile 2402.69 2611.89 2645.46 2512.8 2219.13 1937.8 1699.17 1300.13 874.78 832.14 829.85 840.01 837.44
minimum 1387.8 1320.99 1575.55 1524.52 79.83 79.13 78.75 77.77 80.06 78.46 78.09 78.03 78.2
maximum 2641.97 3149.91 3149.91 3135.27 2985.5 2915.86 2292.46 1825.51 1272.62 1082.29 964.31 954.42 946.24
baseline set1 difference -9.93 % -6.45 % -3.75 % -0.01 % -12.45 % -12.2 % -13.76 % -12.18 % -4.97 % -2.61 % -4.25 % -4.45 % -5.11 %
ttest p-value 0.0114 0.0096 0.1473 0.6065 0.1283 0.1657 0.044 0.1415 0.8092 0.7406 0.6106 0.8275 0.6505
ttest equality DIFF DIFF SAME SAME SAME SAME DIFF SAME SAME SAME SAME SAME SAME
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Baseline data set
  • /home/esprit/Iozone/nfs_1.iozone
  • /home/esprit/Iozone/nfs_2.iozone
  • /home/esprit/Iozone/nfs_3.iozone
  • /home/esprit/Iozone/nfs_4.iozone
Investigated data set
  • /home/esprit/Iozone/iscsi_1.iozone
  • /home/esprit/Iozone/iscsi_2.iozone
  • /home/esprit/Iozone/iscsi_3.iozone
  • /home/esprit/Iozone/iscsi_4.iozone

mean => Arithmetic mean
standar dev. => Sample standard deviation
ci. max 90%, ci.min => confidence interval at confidence level 90% => it means that mean value of the distribution lies with 90% propability in interval ci_min-ci_max
geom. mean => Geometric mean
median => Second quartile = cuts data set in half = 50th percentile
first quartile => cuts off lowest 25% of data = 25th percentile
third quartile => cuts off highest 25% of data, or lowest 75% = 75th percentile
minimum => Lowest value of data set
maximum => Hightest value of data set
baseline set1 difference => Difference of medians of both sets in percennt. Arithmetic means are used in detail mode instead.
ttest p-value => Student's t-test p-value = probability the both data sets are equal
ttest equality => If p-value is higher than 0.1, data sets are considered being equal with 90% probability. Otherwise the data sets are considered being different.
Linear regression of all results regression line is in y = ax form, b coeficient is zero.

for details about operations performed see Iozone documentation