Iozone: Performance Test of File I/O Version $Revision: 3.483 $ Compiled for 64 bit mode. Build: linux-AMD64 Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins Al Slater, Scott Rhine, Mike Wisner, Ken Goss Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR, Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner, Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root, Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer, Vangel Bojaxhi, Ben England, Vikentsi Lapa, Alexey Skidanov, Sudhir Kumar. Run began: Sun Feb 2 02:08:44 2025 Auto Mode Machine = Linux oleg442-client.virtnet 3.10.0-7.9-debug #1 SMP Sat Mar 26 23:2 Excel chart generation enabled Excel chart generation enabled Verify Mode. Pattern dbdbdbdb Performance measurements are invalid in this mode. Using maximum file size of 102400 kilobytes. Using Maximum Record Size 512 kB Command line used: iozone -a -M -R -V 0xab -g 100M -q 512k -i0 -i1 -f /mnt/lustre/d4.lustre-rsync-test/d0.iozone-oleg442-client.virtnet/iozone-file Output is in kBytes/sec Time Resolution = 0.000001 seconds. Processor cache size set to 1024 kBytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. random random bkwd record stride kB reclen write rewrite read reread read write read rewrite read fwrite frewrite fread freread 64 4 20908 22916 378715 463774 64 8 28713 61712 507625 633392 64 16 34096 76372 1105556 889431 64 32 41210 126453 1484662 1363961 64 64 49767 171217 1892980 1279447 128 4 28076 34557 293563 360605 128 8 39531 60290 731625 499970 128 16 51608 70717 853794 718889 128 32 65242 146814 976473 1561553 128 64 62654 187402 1007629 2035099 128 128 75788 242400 1749872 1755594 256 4 26840 38882 394351 337781 256 8 48165 56164 827989 625794 256 16 67510 112330 1243036 1243036 256 32 79726 98194 1398455 1570244 256 64 85873 140361 1790149 1040643 256 128 110016 185903 1391207 1707589 256 256 119400 234400 2330140 1970871 512 4 26336 22725 311644 317214 512 8 45490 55404 824431 820650 512 16 82078 119798 1245780 1261144 512 32 87958 175939 1531941 1032044 512 64 132882 208964 1089647 1237168 512 128 104465 206294 1809465 2016784 512 256 134177 260971 1889050 1746197 512 512 164057 261639 1645826 2055390 1024 4 30793 31854 438002 441968 1024 8 53699 46063 550227 861266 1024 16 67080 116231 853394 1038483 1024 32 100392 146327 1404591 1335165 1024 64 147955 196964 1448650 1678504 1024 128 160783 230951 1592612 1651398 1024 256 149380 295780 1482144 1145383 1024 512 178608 273882 1747480 1662264 2048 4 31518 33113 511982 473854 2048 8 57463 62751 638808 801239 2048 16 71105 88440 1132817 1029128 2048 32 103351 133683 1061166 1375312 2048 64 165309 199030 1535066 1458688 2048 128 166980 225648 1530689 1808862 2048 256 179428 269076 1658350 1420339 2048 512 196544 258679 1718053 1675821 4096 4 31878 28727 521110 415969 4096 8 50270 53049 511948 466567 4096 16 67317 87134 1179708 1225924 4096 32 123236 140934 1272789 978530 4096 64 151990 154624 1364368 1809968 4096 128 165134 212680 1489523 1525498 4096 256 179492 219072 1488877 1500319 4096 512 187879 232809 1606976 1801239 8192 4 28177 31666 461546 473987 8192 8 50172 58578 736230 758730 8192 16 90914 108246 973838 1092560 8192 32 96796 148370 1401076 1512258 8192 64 150374 183282 1677000 1476326 8192 128 173082 200108 1676591 1457662 8192 256 200396 259025 1785960 1763230 8192 512 194708 232035 1850002 1961194 16384 4 29945 29613 365315 453597 16384 8 46366 55280 709598 724309 16384 16 78678 100183 963431 786211 16384 32 104191 136402 1146207 1064249 16384 64 144570 160487 1537251 1158945 16384 128 182742 206098 1392017 1721179 16384 256 199654 249220 1725327 1643031 16384 512 202044 254971 1801636 1643345 32768 4 30168 32157 514361 553738 32768 8 54088 57797 693548 659009 32768 16 86679 105381 1084281 1099451 32768 32 124123 147648 1413882 1533509 32768 64 161153 203002 1437137 1473784 32768 128 179812 225620 1678606 1764485 32768 256 192419 274262 1669451 1720291 32768 512