Baseline data set
  • ./gluster_baseline_tcp_1.iozone
  • ./gluster_baseline_tcp_2.iozone
  • ./gluster_baseline_tcp_3.iozone
  • ./gluster_baseline_tcp_4.iozone
  • ./gluster_baseline_tcp_5.iozone
Investigated data set
  • ./gluster_target_uds_1.iozone
  • ./gluster_target_uds_2.iozone
  • ./gluster_target_uds_3.iozone
  • ./gluster_target_uds_4.iozone
  • ./gluster_target_uds_5.iozone

Overall summary

summary
Operation Write Re-write Read Re-read Random read Random write Backwards read Record rewrite Strided Read Fwrite Frewrite Fread Freread ALL
baelinefirst quartile 289.37 272.44 360.22 361.17 134.05 186.96 117.79 226.65 262.33 291.71 293.13 309.23 307.16 256.54
median 791.01 847.5 484.76 491.46 317.64 710.2 338.63 726.22 501.28 869.93 875.77 443.18 450.9 549.91
third quartile
1156.04 1219.04 974.44 989.43 616.33 1163.08 755.11 1286.44 1079.95 1180.97 1196.66 811.17 799.11 1065.82
set1first quartile 289.73 280.27 417.53 420.57 149.47 228.52 137.12 261.92 293.6 280.67 305.62 356.63 347.64 285.06
median 896.22 971.46 545.71 544.38 380.62 823.91 380.65 855.98 544.57 998.11 973.74 488.36 481.17 608.01
third quartile
1301.58 1365.31 1078.42 1081.12 714.59 1295.81 860.21 1443.38 1157.5 1248.6 1267.88 880.19 870.16 1163.84
linear regression slope 90% 1.1 - 1.12 1.09 - 1.11 1.05 - 1.07 1.03 - 1.05 1.18 - 1.19 1.09 - 1.11 1.09 - 1.11 1.13 - 1.15 1.07 - 1.08 1.06 - 1.08 1.05 - 1.07 1.08 - 1.1 1.08 - 1.1 1.09 - 1.1
ttest equality
DIFF DIFF SAME SAME DIFF DIFF DIFF DIFF SAME DIFF DIFF DIFF DIFF DIFF

Write

Write File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 17.43 30.5 38.95 47.64 58.69 106.68 122.49 199.94 282.66 303.26 326.04 468.16 579.01 1048.67 1074.3 1018.22 1082.32 1082.85 1080.76
median 17.51 35.11 51.09 81.49 110.25 159.9 252.5 361.42 457.7 627.65 717.1 864.38 999.14 1185.27 1170.15 1164.07 1196.2 1221.18 1220.74
third quartile
17.68 59.84 68.07 135.98 175.49 287.58 479.92 588.12 724.05 825.24 960.93 1103.12 1186.05 1248.11 1232.07 1220.68 1265.92 1308.34 1278.24
set1first quartile 16.55 25.34 38.68 49.69 81.8 98.76 140.55 197.0 270.27 309.28 346.69 497.5 541.12 1159.13 1125.51 1137.55 1225.24 1272.55 1215.65
median 17.58 36.36 48.7 77.76 113.84 191.44 304.57 362.26 525.22 694.59 832.29 1032.82 1132.74 1309.6 1293.47 1347.78 1367.79 1371.11 1384.0
third quartile
26.56 42.62 75.97 130.74 179.57 340.51 467.08 670.63 786.07 915.68 1076.72 1230.65 1314.94 1363.8 1380.47 1387.31 1404.82 1431.42 1426.32
ttest equality
SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF
Write Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 45.34 71.78 133.66 230.23 454.06 663.53 763.1 883.09 1005.45 1130.69 1174.94 1177.79 1157.72
median 80.7 132.06 232.66 351.84 666.61 832.46 999.14 1110.65 1188.59 1213.31 1232.07 1234.75 1259.45
third quartile
98.74 182.46 310.95 484.12 756.05 940.1 1088.8 1194.92 1253.9 1254.02 1297.91 1286.3 1325.35
set1first quartile 44.91 77.45 136.23 238.98 501.07 681.37 863.45 978.12 1108.96 1207.62 1294.56 1341.95 1355.99
median 76.29 132.68 242.96 342.67 751.71 929.7 1152.96 1285.15 1321.21 1309.2 1352.51 1399.63 1396.35
third quartile
96.3 175.74 316.21 517.71 866.25 1081.92 1239.53 1359.45 1387.99 1383.41 1394.18 1431.81 1439.69
ttest equality
SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
iwrite\_compare
Regression line
slope 1.10811
std. error 0.00585
ci. max 90% 1.09842
ci. min. 90% 1.1178
summary Back on top

Re-write

Re-write File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 17.36 26.27 33.05 47.34 68.23 101.03 126.89 191.39 265.46 327.3 343.28 482.45 564.81 1073.79 1102.16 1049.26 1117.85 1079.96 1127.72
median 21.45 34.12 51.57 79.33 102.97 191.31 249.02 378.43 503.05 682.13 808.74 883.57 996.39 1179.29 1231.62 1267.05 1221.07 1281.05 1305.22
third quartile
45.41 34.78 67.47 128.97 147.04 272.21 490.15 576.74 726.69 813.68 989.0 1183.75 1224.66 1289.95 1295.28 1325.33 1343.75 1340.7 1364.87
set1first quartile 17.68 25.58 33.7 53.41 68.16 112.04 132.96 205.4 254.19 310.36 357.06 462.01 544.15 1215.43 1126.15 1136.0 1223.81 1344.27 1312.79
median 26.56 31.32 51.73 81.91 130.17 187.17 284.03 384.8 576.39 701.88 891.66 1052.53 1151.83 1370.63 1364.98 1368.37 1412.92 1433.86 1431.3
third quartile
28.7 37.0 69.11 128.73 185.42 304.13 516.38 637.79 794.86 933.88 1117.15 1240.31 1365.31 1432.8 1424.82 1432.7 1448.54 1462.93 1452.92
ttest equality
SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF
Re-write Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 38.63 69.25 140.96 231.35 448.23 676.0 758.22 905.46 1061.15 1123.85 1209.12 1298.26 1201.98
median 69.05 133.66 244.97 371.53 671.2 832.54 1019.09 1143.16 1241.06 1271.61 1312.86 1354.04 1353.41
third quartile
97.04 168.97 306.24 498.26 848.28 951.83 1128.85 1238.68 1291.05 1330.54 1367.17 1406.53 1382.89
set1first quartile 45.63 78.21 157.43 230.3 524.4 767.5 919.24 1078.86 1129.15 1198.84 1332.22 1387.4 1429.34
median 77.47 141.17 229.15 368.04 806.98 989.22 1200.52 1320.82 1370.56 1367.97 1426.3 1446.5 1454.76
third quartile
98.93 172.53 311.22 509.63 948.5 1112.86 1333.51 1417.05 1433.88 1414.73 1445.56 1468.19 1478.55
ttest equality
SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
rewrite\_compare
Regression line
slope 1.10365
std. error 0.00624
ci. max 90% 1.09332
ci. min. 90% 1.11398
summary Back on top

Read

Read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 65.33 91.22 162.7 132.18 243.22 151.04 213.93 270.56 307.03 348.99 383.58 369.8 385.03 449.36 491.34 503.56 492.21 502.6 506.86
median 78.09 122.88 164.74 305.02 452.9 207.84 253.05 296.36 326.38 397.3 419.68 430.28 484.76 801.95 834.39 874.61 882.2 908.47 907.28
third quartile
78.09 140.78 242.02 460.23 625.93 406.13 778.99 545.89 533.1 641.35 883.2 975.5 1040.72 1103.83 1176.41 1183.5 1207.38 1197.29 1193.8
set1first quartile 60.06 97.54 257.93 201.48 247.12 175.1 247.11 298.35 357.79 400.74 430.05 432.64 468.12 508.46 516.2 550.58 559.5 587.44 573.72
median 75.22 120.37 290.23 314.17 303.48 222.17 279.63 374.43 410.17 435.87 473.65 480.84 510.45 908.73 925.19 964.4 980.81 967.66 985.84
third quartile
76.27 169.26 452.67 464.96 625.93 432.23 753.71 615.27 559.33 716.31 1044.05 1020.82 1189.94 1274.9 1261.41 1224.4 1299.4 1300.76 1301.56
ttest equality
SAME SAME DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
Read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 154.78 162.7 263.54 296.66 366.21 416.59 431.09 597.65 824.67 985.49 1176.41 1285.09 1357.38
median 249.76 253.44 318.07 356.22 419.68 461.22 475.56 651.43 888.51 1074.72 1195.24 1309.54 1427.55
third quartile
350.94 351.66 374.91 381.94 465.89 500.33 506.68 689.18 921.91 1114.9 1369.85 1468.57 1972.45
set1first quartile 177.31 223.3 272.87 323.0 419.56 471.07 481.8 681.2 909.63 1100.31 1254.76 1394.0 1464.71
median 288.95 303.54 376.4 411.87 482.58 514.69 530.02 714.62 964.4 1163.06 1304.24 1422.82 1549.48
third quartile
406.92 417.51 437.59 451.94 549.99 550.63 562.1 749.96 1044.05 1288.36 1528.06 1593.05 2116.43
ttest equality
SAME DIFF DIFF SAME SAME DIFF DIFF SAME SAME SAME SAME SAME SAME
iread\_compare
Regression line
slope 1.05696
std. error 0.00511
ci. max 90% 1.04849
ci. min. 90% 1.06543
summary Back on top

Re-read

Re-read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 76.63 97.9 164.54 141.56 262.72 145.45 223.63 258.94 316.05 345.64 362.45 382.48 412.68 497.71 474.4 499.47 512.52 500.22 499.73
median 76.63 206.69 236.76 292.47 437.05 205.79 252.74 293.26 338.53 410.5 404.61 436.78 496.42 776.61 842.17 887.88 888.41 917.07 908.99
third quartile
103.17 270.69 318.03 345.56 630.45 394.2 781.03 600.58 519.17 645.38 842.31 955.1 997.95 1159.84 1169.12 1203.6 1195.53 1198.06 1200.6
set1first quartile 76.27 175.19 168.08 174.15 233.26 170.7 234.03 296.67 353.63 405.47 421.9 432.31 457.49 510.29 512.85 567.54 566.1 587.3 581.4
median 76.63 200.26 283.94 323.8 521.36 223.87 288.4 339.49 404.36 450.66 468.0 476.39 524.95 875.51 765.53 921.08 995.14 997.28 955.17
third quartile
102.52 254.79 440.49 400.54 624.44 492.78 818.36 704.24 561.13 786.73 993.24 1028.9 1098.6 1282.82 1224.65 1295.98 1308.43 1327.93 1276.43
ttest equality
SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
Re-read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 153.22 226.27 236.56 307.24 367.97 420.31 432.14 600.09 825.3 1015.83 1173.0 1276.88 1348.97
median 271.25 283.0 319.69 347.19 421.25 453.69 479.83 640.35 887.88 1063.11 1202.68 1308.37 1407.94
third quartile
356.0 361.81 367.18 398.21 471.67 502.74 512.77 683.31 928.01 1103.97 1284.41 1504.73 1820.3
set1first quartile 231.08 201.96 235.12 317.64 424.33 475.69 482.3 663.97 873.46 1095.65 1263.18 1398.25 1456.78
median 347.11 296.91 359.57 387.55 480.26 508.79 534.71 698.47 940.53 1166.19 1328.29 1428.67 1541.42
third quartile
417.19 407.38 421.71 436.75 536.98 560.74 568.5 758.25 1017.55 1247.77 1418.71 1575.95 1910.8
ttest equality
DIFF SAME SAME SAME DIFF DIFF DIFF SAME SAME SAME SAME SAME SAME
reread\_compare
Regression line
slope 1.04231
std. error 0.0057
ci. max 90% 1.03287
ci. min. 90% 1.05175
summary Back on top

Random read

Random read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 58.14 78.31 93.87 78.68 111.61 39.71 52.68 67.84 78.88 94.26 119.25 139.43 143.28 441.0 463.38 497.05 502.84 515.04 517.68
median 70.99 95.54 134.62 134.39 153.95 85.32 87.94 125.11 168.38 206.45 244.81 339.3 437.92 596.32 640.85 685.64 715.94 730.06 756.18
third quartile
74.88 140.08 168.43 224.02 434.15 154.21 303.23 302.34 365.08 464.7 533.66 582.63 595.53 634.27 715.84 761.17 806.63 830.39 830.82
set1first quartile 52.21 59.69 139.08 83.59 122.28 44.49 59.74 81.31 95.14 111.77 141.17 162.29 174.04 503.14 541.03 576.63 591.89 602.93 618.29
median 55.02 68.15 187.89 151.28 206.93 89.68 110.56 156.95 199.72 247.36 293.95 393.6 495.2 712.86 735.09 792.83 836.36 875.64 901.02
third quartile
74.88 96.52 211.24 303.02 466.61 179.06 352.93 391.84 443.47 532.44 608.52 660.87 691.15 740.09 858.45 910.64 997.98 1025.17 1035.24
ttest equality
SAME SAME DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF
Random read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 34.05 52.15 80.63 117.98 176.14 253.88 394.71 470.48 546.61 599.72 643.32 637.14 711.46
median 37.23 60.7 97.57 132.67 183.72 281.37 437.16 518.34 600.65 672.44 745.04 762.48 788.56
third quartile
70.99 86.57 123.29 154.04 200.63 305.5 499.97 625.07 704.99 770.94 819.11 832.3 848.53
set1first quartile 38.29 61.26 98.69 127.89 211.0 298.87 443.47 545.97 625.26 679.46 734.13 755.06 795.29
median 44.63 71.33 117.57 165.8 219.05 329.11 495.2 596.35 710.98 769.8 885.96 893.01 994.5
third quartile
73.7 90.91 138.35 188.84 236.23 361.02 588.28 734.53 830.58 928.58 984.25 1018.67 1069.26
ttest equality
SAME SAME DIFF SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
randrd\_compare
Regression line
slope 1.1858
std. error 0.00491
ci. max 90% 1.17766
ci. min. 90% 1.19394
summary Back on top

Random write

Random write File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 8.66 14.02 24.17 37.76 53.06 69.62 85.04 139.4 173.46 199.64 227.6 316.78 393.38 959.32 1089.53 1029.1 1093.78 1156.59 1140.99
median 9.37 16.18 28.62 53.77 90.59 132.62 199.36 298.82 424.27 576.96 775.51 818.34 971.76 1174.1 1227.82 1259.93 1276.86 1268.35 1281.78
third quartile
9.91 17.97 35.4 64.66 125.8 192.89 338.27 465.73 611.61 733.48 859.04 988.69 1106.81 1243.44 1300.63 1320.63 1353.12 1361.49 1368.55
set1first quartile 9.06 16.29 24.76 38.65 56.15 85.92 105.53 162.45 216.23 242.38 257.12 379.68 440.56 1191.85 1158.35 1144.67 1223.51 1304.85 1308.44
median 9.39 17.96 30.81 57.7 100.33 146.34 230.62 346.88 481.45 659.94 833.33 963.43 1098.82 1281.6 1346.26 1367.72 1395.98 1428.05 1429.95
third quartile
10.02 19.28 44.59 72.81 131.02 257.7 356.24 498.19 646.79 819.36 954.66 1102.61 1210.46 1328.23 1399.25 1398.55 1424.84 1457.77 1468.27
ttest equality
SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF
Random write Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 27.51 52.15 100.33 143.85 394.68 598.33 699.31 826.92 969.2 1052.1 1131.5 1200.6 1227.07
median 47.8 88.72 163.83 279.57 597.96 855.32 1000.74 1128.39 1209.37 1257.08 1270.66 1315.26 1305.92
third quartile
59.42 115.98 209.5 360.48 641.03 979.01 1111.05 1219.64 1285.39 1316.4 1343.3 1395.42 1382.0
set1first quartile 31.66 54.14 109.74 177.43 439.59 640.91 775.17 911.91 1046.27 1147.27 1220.26 1243.49 1296.52
median 59.25 111.9 186.5 316.77 671.02 936.19 1151.91 1206.78 1323.59 1358.16 1358.06 1373.15 1415.7
third quartile
71.9 138.35 240.84 417.95 790.14 1100.82 1298.71 1398.73 1427.15 1420.06 1419.75 1425.86 1467.77
ttest equality
DIFF DIFF DIFF SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
randwr\_compare
Regression line
slope 1.09699
std. error 0.00603
ci. max 90% 1.087
ci. min. 90% 1.10698
summary Back on top

Backwards read

Backwards read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 36.5 33.04 46.03 53.06 79.13 39.49 45.7 48.49 76.65 83.86 88.55 120.52 138.5 424.17 439.61 490.37 473.47 515.01 508.79
median 56.73 63.53 72.35 138.31 146.71 74.41 92.7 117.92 160.95 200.87 252.19 334.89 402.5 736.19 757.07 775.79 823.74 812.41 822.62
third quartile
65.07 87.12 142.11 199.45 234.1 139.77 196.23 256.5 348.92 400.73 577.67 660.86 820.59 971.85 1034.43 1114.12 1145.34 1156.35 1157.73
set1first quartile 64.05 39.78 49.05 76.07 89.29 40.45 48.66 65.15 87.32 98.94 115.08 154.87 173.27 475.88 507.34 566.39 533.33 578.85 610.72
median 66.12 55.99 52.1 136.43 165.72 84.71 98.97 148.37 191.93 242.79 304.11 383.05 487.85 811.96 814.02 850.01 931.57 973.9 972.0
third quartile
72.24 69.71 167.69 186.61 296.27 154.83 209.73 238.5 392.47 484.0 671.84 773.25 983.35 1026.2 1163.89 1171.88 1176.29 1275.82 1193.58
ttest equality
SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
Backwards read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 24.18 43.09 74.2 108.0 173.43 235.85 363.07 449.17 598.53 794.15 932.85 1033.89 1137.53
median 26.41 48.31 84.36 127.42 214.89 278.62 414.96 503.24 719.83 860.98 1028.18 1122.73 1214.08
third quartile
41.68 60.54 104.27 145.36 239.11 327.22 486.63 573.15 795.11 996.78 1143.78 1210.74 1277.66
set1first quartile 29.21 49.62 83.19 127.96 197.85 269.74 427.33 513.25 699.36 893.94 995.42 1133.19 1259.82
median 32.31 56.35 98.92 158.05 251.03 329.03 475.41 597.11 811.96 989.98 1085.93 1227.5 1348.58
third quartile
43.9 63.76 121.02 173.16 275.54 377.24 572.92 693.67 902.65 1054.92 1193.58 1305.2 1396.29
ttest equality
DIFF SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
bkwdrd\_compare
Regression line
slope 1.10234
std. error 0.00524
ci. max 90% 1.09366
ci. min. 90% 1.11102
summary Back on top

Record rewrite

Record rewrite File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 17.83 24.55 28.48 55.06 64.03 96.26 121.61 189.28 262.95 303.33 191.0 237.94 240.57 1163.72 1127.08 1210.72 1207.52 1275.9 1303.45
median 18.33 32.55 45.71 75.82 116.62 213.14 257.96 391.55 606.04 752.96 826.96 872.3 1088.67 1296.9 1269.43 1321.59 1323.93 1344.18 1368.35
third quartile
18.88 36.01 65.62 126.35 168.93 307.44 465.11 594.46 760.42 897.96 1040.21 1155.76 1256.09 1349.02 1371.59 1397.96 1401.8 1413.35 1403.89
set1first quartile 17.6 33.6 39.59 53.8 74.33 115.88 140.02 208.46 275.64 327.76 270.81 303.48 333.72 1291.05 1132.66 1407.85 1280.58 1443.38 1378.14
median 22.09 41.57 46.78 84.94 120.87 192.5 270.61 394.44 608.68 845.1 1005.78 1058.74 1242.81 1440.59 1410.13 1518.4 1540.24 1570.32 1571.74
third quartile
32.85 48.57 64.96 131.21 210.42 352.82 530.11 682.83 789.92 990.48 1147.45 1290.89 1419.46 1505.17 1532.2 1575.06 1639.86 1614.04 1623.25
ttest equality
SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF
Record rewrite Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 34.68 70.82 138.14 235.36 386.34 649.78 879.05 960.24 1067.74 1195.08 1203.72 1313.79 1322.98
median 48.81 91.45 171.25 282.14 417.45 697.53 1171.27 1226.66 1256.09 1295.73 1335.67 1352.55 1373.15
third quartile
77.25 127.61 223.06 349.29 499.4 761.69 1323.05 1328.52 1358.09 1369.44 1373.61 1407.85 1429.32
set1first quartile 41.54 85.44 164.48 264.37 492.94 785.75 921.64 1098.63 1235.05 1253.36 1368.69 1410.85 1480.76
median 59.07 115.64 219.02 341.05 536.76 860.07 1334.12 1357.8 1465.56 1455.7 1449.79 1509.28 1570.32
third quartile
80.08 141.56 262.4 422.74 609.96 948.58 1473.4 1537.09 1569.28 1595.76 1605.41 1635.59 1651.53
ttest equality
SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
recrewr\_compare
Regression line
slope 1.13842
std. error 0.00636
ci. max 90% 1.12788
ci. min. 90% 1.14895
summary Back on top

Strided Read

Strided Read File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 37.94 49.77 84.51 142.19 282.85 152.93 115.9 144.9 175.22 197.33 237.5 256.41 293.89 479.19 526.38 558.86 578.91 581.88 596.2
median 57.53 69.84 144.73 198.98 365.71 167.15 335.56 483.59 591.35 549.3 390.66 441.25 494.25 704.66 775.06 808.99 844.31 839.64 866.04
third quartile
60.06 74.68 173.48 245.8 557.98 192.38 370.68 617.51 840.41 1181.48 1559.08 1604.77 1666.81 2642.66 2886.38 1183.84 1168.25 1167.18 1169.27
set1first quartile 53.58 52.56 77.3 152.22 278.93 163.22 129.8 164.2 211.11 239.77 287.5 332.71 336.79 560.71 618.22 622.09 690.43 699.96 711.33
median 55.76 73.53 121.18 236.07 318.99 188.81 351.07 516.82 697.79 594.91 434.87 488.55 544.57 814.56 841.46 907.0 957.79 946.75 975.27
third quartile
57.53 89.85 146.75 285.88 534.11 214.26 382.59 665.03 968.26 1213.65 1668.14 1811.88 1917.13 2787.21 3075.29 1290.19 1293.96 1244.52 1269.05
ttest equality
SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
Strided Read Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 72.24 115.53 173.54 262.34 375.94 312.41 480.36 556.07 803.01 1008.16 1158.45 1253.85 1333.39
median 89.81 131.97 204.33 285.24 406.03 332.22 566.51 602.89 844.31 1044.09 1183.84 1434.34 1780.84
third quartile
101.75 158.08 243.22 313.62 450.52 382.05 628.34 785.34 1559.08 2012.78 2383.82 2864.6 3550.35
set1first quartile 78.09 125.74 205.11 284.22 403.95 365.04 544.57 654.81 867.42 1076.8 1226.76 1343.99 1403.81
median 104.65 155.5 250.22 326.43 466.39 386.67 660.19 718.02 963.9 1146.98 1298.21 1558.53 2050.88
third quartile
118.44 176.01 290.8 351.43 516.62 429.75 739.4 966.06 1668.14 2320.32 2630.3 3136.29 3878.11
ttest equality
SAME SAME DIFF SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME
striderd\_compare
Regression line
slope 1.07757
std. error 0.00331
ci. max 90% 1.07209
ci. min. 90% 1.08305
summary Back on top

Fwrite

Fwrite File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 17.38 34.32 53.98 59.8 71.1 90.71 143.82 191.63 260.28 310.48 338.86 429.84 561.31 1018.36 1027.47 1025.09 1084.61 1047.62 1036.33
median 17.51 51.5 72.03 122.57 123.26 216.7 256.95 377.23 509.15 642.22 749.89 887.7 1004.4 1156.82 1143.18 1174.67 1203.09 1218.06 1198.33
third quartile
19.63 84.8 98.94 140.54 217.76 437.71 536.0 669.52 825.03 906.41 1070.85 1191.73 1221.48 1300.76 1237.38 1247.55 1253.52 1247.69 1258.16
set1first quartile 17.6 36.24 46.2 69.45 89.41 104.05 140.12 200.8 263.15 295.97 339.83 476.12 559.21 1131.02 1086.79 1127.83 1149.51 1184.18 1165.36
median 30.29 41.55 67.65 111.42 118.63 234.38 271.45 425.17 551.9 801.51 948.79 1034.27 1122.17 1237.48 1188.95 1253.77 1241.95 1282.18 1232.63
third quartile
31.22 64.35 89.06 129.29 222.38 432.29 591.88 724.24 860.58 1014.95 1138.61 1208.73 1292.2 1342.39 1335.28 1295.02 1308.6 1328.3 1301.68
ttest equality
SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF
Fwrite Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 51.36 87.57 143.85 257.22 553.15 750.09 884.91 1018.48 1129.05 1161.36 1184.11 1260.15 1274.71
median 75.23 138.62 244.0 383.04 726.65 862.91 993.2 1125.34 1187.37 1235.45 1225.18 1329.82 1323.56
third quartile
92.28 182.31 301.79 479.32 810.97 946.33 1084.61 1168.93 1229.41 1297.08 1270.6 1383.07 1417.08
set1first quartile 48.22 94.67 150.8 264.91 524.31 857.71 1016.65 1105.74 1153.08 1190.33 1221.78 1283.85 1324.42
median 76.88 145.57 232.69 392.46 806.49 1013.28 1136.11 1188.76 1204.81 1239.89 1299.08 1324.46 1365.75
third quartile
96.41 181.19 307.73 498.08 896.17 1089.44 1257.21 1276.81 1254.83 1307.16 1360.55 1417.76 1534.56
ttest equality
SAME SAME SAME SAME DIFF DIFF DIFF DIFF SAME SAME DIFF SAME SAME
fwrite\_compare
Regression line
slope 1.0676
std. error 0.00729
ci. max 90% 1.05553
ci. min. 90% 1.07967
summary Back on top

Frewrite

Frewrite File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 17.51 34.58 54.71 58.02 77.84 109.21 125.02 198.0 243.49 318.48 343.45 488.94 577.16 1106.0 1054.98 1060.16 1085.35 1105.15 1048.79
median 17.83 35.6 66.82 122.32 135.63 219.9 251.77 406.73 506.08 673.65 783.88 903.77 1008.57 1195.06 1196.33 1191.11 1186.23 1196.66 1181.66
third quartile
22.45 49.87 68.68 135.62 235.78 445.15 547.11 693.23 795.46 889.36 1065.28 1224.11 1250.59 1308.05 1275.71 1252.2 1266.6 1242.89 1250.53
set1first quartile 17.29 34.47 55.23 63.51 86.44 103.36 129.53 216.82 272.93 284.85 345.03 497.18 546.56 1160.72 1110.17 1102.97 1131.54 1157.42 1143.05
median 19.05 36.62 68.21 119.49 136.19 225.62 267.37 458.29 569.43 752.3 859.14 1032.07 1092.68 1264.97 1269.82 1257.17 1275.29 1276.53 1253.23
third quartile
22.7 44.29 96.8 129.29 220.14 482.01 571.82 668.88 842.43 1001.35 1146.18 1282.08 1317.65 1357.03 1341.16 1330.93 1317.22 1318.12 1301.35
ttest equality
SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME SAME DIFF DIFF DIFF DIFF
Frewrite Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 45.29 83.15 171.81 255.0 512.92 757.71 912.16 1018.64 1144.13 1200.51 1188.1 1251.01 1287.09
median 72.76 132.36 236.73 383.43 679.3 875.71 1028.65 1153.57 1191.11 1240.35 1242.89 1313.75 1336.18
third quartile
95.24 176.56 314.55 501.26 819.84 957.6 1113.08 1214.6 1235.84 1267.09 1320.55 1390.12 1476.47
set1first quartile 49.43 99.13 148.56 265.46 566.35 809.29 993.57 1115.44 1116.69 1175.17 1258.01 1300.79 1332.99
median 79.01 135.63 245.23 402.7 816.81 998.67 1160.01 1223.41 1205.54 1259.4 1297.8 1338.25 1389.57
third quartile
97.67 169.63 312.48 514.07 917.81 1103.77 1252.85 1289.56 1289.29 1338.91 1403.02 1400.68 1569.59
ttest equality
SAME SAME SAME SAME DIFF DIFF DIFF DIFF SAME SAME SAME SAME SAME
frewrite\_compare
Regression line
slope 1.06112
std. error 0.00729
ci. max 90% 1.04906
ci. min. 90% 1.07318
summary Back on top

Fread

Fread File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 28.96 41.79 77.76 106.47 172.14 107.52 160.68 219.08 281.61 319.83 345.95 370.63 387.29 452.21 465.04 488.52 499.24 509.46 513.06
median 30.75 48.38 84.47 157.51 225.63 124.13 188.13 242.03 305.73 338.56 381.97 441.9 465.52 798.0 811.68 873.52 892.91 885.29 907.24
third quartile
34.58 55.54 120.67 196.86 312.52 174.57 303.27 362.4 406.51 506.69 687.82 783.93 842.69 999.63 1077.35 1131.38 1194.11 1190.78 1184.1
set1first quartile 38.66 52.19 99.56 100.12 193.49 125.02 179.28 241.85 321.43 360.85 413.27 438.3 453.25 473.23 536.65 546.38 535.17 559.06 572.4
median 45.41 64.52 111.68 159.92 259.34 143.22 200.16 296.22 348.2 408.24 465.05 478.1 514.75 788.97 880.19 904.49 924.97 911.0 961.93
third quartile
47.11 79.78 146.03 197.62 315.91 195.19 335.15 406.39 450.62 561.18 688.7 883.4 1041.6 1125.46 1127.83 1264.62 1272.7 1241.28 1249.26
ttest equality
DIFF DIFF DIFF SAME SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF SAME SAME SAME SAME SAME SAME
Fread Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 91.57 103.83 163.61 223.57 294.3 357.98 395.57 526.49 709.37 835.45 946.69 1090.07 1157.26
median 204.9 210.44 220.08 291.57 394.46 395.46 432.15 574.81 795.9 942.45 1062.54 1147.73 1260.24
third quartile
314.03 325.09 338.67 350.96 453.59 477.02 469.08 661.0 879.99 1049.12 1144.45 1240.78 1291.7
set1first quartile 100.24 111.26 174.35 254.28 341.31 427.5 445.03 573.41 795.35 959.54 1068.35 1167.82 1261.03
median 188.35 225.15 280.43 326.32 456.06 458.31 475.02 646.66 857.45 1042.71 1131.08 1258.75 1345.9
third quartile
360.35 382.11 402.75 402.59 511.36 504.41 512.34 700.09 914.57 1099.09 1241.28 1337.95 1405.22
ttest equality
SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
fread\_compare
Regression line
slope 1.09059
std. error 0.00574
ci. max 90% 1.08109
ci. min. 90% 1.10008
summary Back on top

Freread

Freread File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 30.02 54.57 75.67 133.32 192.92 94.04 157.57 216.6 274.79 316.17 353.54 364.47 398.34 456.24 461.29 488.16 497.68 505.95 507.85
median 32.58 57.92 86.82 148.25 270.58 128.03 182.49 235.52 291.56 344.89 394.4 406.63 468.08 750.39 822.15 881.81 885.95 900.58 914.65
third quartile
33.11 71.24 113.08 174.84 355.3 166.63 276.55 335.8 361.52 485.1 613.65 761.99 876.33 949.5 1073.12 1138.42 1191.71 1192.18 1187.8
set1first quartile 35.55 46.62 94.46 98.3 211.78 109.78 181.18 245.91 315.25 363.52 407.23 437.77 455.72 500.16 512.86 544.13 551.85 547.8 578.62
median 39.88 61.69 111.49 174.48 263.78 126.34 203.42 279.65 344.48 403.52 433.69 478.84 500.91 823.75 775.2 879.52 887.01 942.72 977.95
third quartile
41.6 76.83 136.77 221.46 336.17 187.81 366.79 370.92 460.42 567.53 734.14 845.62 945.34 1066.13 1197.81 1262.15 1227.43 1270.79 1264.63
ttest equality
DIFF SAME DIFF SAME SAME SAME SAME SAME DIFF DIFF SAME DIFF SAME SAME SAME SAME SAME SAME SAME
Freread Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 87.53 93.23 159.0 218.13 300.88 347.88 394.36 520.81 665.15 810.79 946.88 1052.07 1139.91
median 203.67 194.38 243.92 300.97 391.11 406.35 435.3 563.28 767.68 934.12 1073.12 1174.1 1236.34
third quartile
318.72 333.66 327.13 360.0 448.29 488.1 485.2 673.47 875.02 1037.7 1142.0 1243.43 1306.53
set1first quartile 100.1 110.6 192.89 265.86 352.87 401.13 431.43 582.54 758.92 916.83 1064.41 1212.98 1290.85
median 225.33 229.01 269.98 332.91 450.64 452.08 475.12 631.15 816.41 1011.0 1139.6 1268.03 1361.76
third quartile
347.64 369.3 385.73 408.14 495.48 499.22 525.39 706.15 886.06 1124.22 1245.49 1355.54 1410.47
ttest equality
SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
freread\_compare
Regression line
slope 1.09402
std. error 0.00588
ci. max 90% 1.08428
ci. min. 90% 1.10375
summary Back on top

ALL

ALL File size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576
baselinefirst quartile 17.68 34.4 48.61 64.19 98.26 100.54 135.72 187.28 251.58 302.81 336.03 356.19 375.61 608.51 650.58 679.67 685.08 686.76 696.11
median 33.11 55.0 79.36 129.03 206.28 160.27 224.21 295.05 353.72 423.06 482.56 565.91 622.47 983.22 1044.9 1051.16 1085.35 1095.11 1100.6
third quartile
58.14 82.32 148.17 204.58 312.52 247.53 370.68 512.31 623.8 754.5 899.18 1016.62 1113.58 1232.95 1232.14 1249.93 1264.91 1274.39 1276.42
set1first quartile 19.05 34.73 49.77 76.26 107.75 105.31 152.86 212.75 263.15 320.23 384.74 409.33 439.72 712.86 705.65 753.38 792.52 803.3 815.53
median 39.88 51.58 85.8 129.67 211.1 173.62 258.54 329.72 402.11 469.65 547.63 633.08 710.07 1131.02 1118.55 1127.9 1160.29 1213.03 1182.4
third quartile
60.06 81.15 164.54 224.61 303.48 281.76 407.09 545.64 699.31 854.86 1009.05 1151.22 1235.99 1349.02 1358.06 1361.99 1385.71 1399.84 1370.17
ttest equality
SAME SAME DIFF SAME SAME SAME DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
ALL Block size [kB] 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384
baselinefirst quartile 41.51 74.23 132.97 197.04 306.51 350.94 452.21 579.52 763.89 933.66 1065.88 1151.45 1182.47
median 77.63 129.44 205.94 294.61 431.83 501.4 561.82 690.0 902.89 1074.72 1187.58 1270.42 1311.86
third quartile
121.16 190.68 300.92 379.71 612.66 809.53 1018.36 1148.18 1220.45 1261.06 1300.76 1359.36 1395.82
set1first quartile 46.51 82.35 137.54 210.64 334.66 404.81 498.1 661.09 849.78 1014.58 1121.49 1238.93 1313.23
median 81.49 142.14 228.52 328.19 491.87 544.64 626.35 757.18 988.14 1163.06 1286.34 1353.08 1410.73
third quartile
136.33 194.44 319.06 430.77 687.24 947.56 1167.64 1254.89 1299.74 1348.71 1407.85 1443.75 1505.12
ttest equality
DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF DIFF
ALL\_compare
Regression line
slope 1.09277
std. error 0.00317
ci. max 90% 1.08751
ci. min. 90% 1.09802
summary Back on top

Plotted values are median with first and third quartile errorbars.
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.
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