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: Tue Feb 25 07:06:56 2025 Auto Mode Machine = Linux oleg117-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-oleg117-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 9533 24015 357529 351905 64 8 15549 43543 718114 552557 64 16 14401 69492 926260 727850 64 32 18037 63613 1336792 1143223 64 64 15234 71816 1363961 1526887 128 4 13483 25513 482881 390222 128 8 22695 35437 731625 566435 128 16 24352 63687 313628 809997 128 32 33586 104657 1133103 1269781 128 64 23005 106844 1455701 1778862 128 128 21712 145777 1684006 1967960 256 4 18940 23194 401277 419626 256 8 28806 31299 476624 478536 256 16 35179 60503 937924 1243036 256 32 29274 66771 1393012 1662639 256 64 48502 70019 278257 1201314 256 128 48236 143898 742146 1607865 256 256 43308 177659 828628 1814348 512 4 19118 21823 368047 283653 512 8 21063 32430 485767 516122 512 16 37120 63879 815353 900108 512 32 40969 94238 1082507 1098566 512 64 66338 117839 1546280 1299295 512 128 75382 156810 1480200 1801873 512 256 70165 149788 1433753 1570020 512 512 79877 158816 1924603 1759070 1024 4 17922 22547 378551 330768 1024 8 32214 39417 355431 508954 1024 16 50808 61835 587482 933322 1024 32 63531 77806 925877 569186 1024 64 86428 128901 1182598 1341839 1024 128 90291 121978 1345623 1444752 1024 256 94299 169341 1695065 1882266 1024 512 101646 175492 1940083 1304745 2048 4 19325 22571 376953 301879 2048 8 20375 38616 437217 429629 2048 16 52158 63521 809851 736397 2048 32 73066 92753 885030 1087497 2048 64 86177 120952 948136 1195569 2048 128 111639 134453 1149338 1521471 2048 256 109168 160665 1702391 929666 2048 512 125860 169157 1519319 1455475 4096 4 21137 23013 322137 397013 4096 8 37033 40130 516256 533125 4096 16 59588 62623 809805 791487 4096 32 69236 90633 802205 979423 4096 64 92546 112025 1069410 1252559 4096 128 101893 147976 1251100 1385271 4096 256 103672 154194 1358542 1618939 4096 512 120708 181624 1615741 1490556 8192 4 20820 20911 282589 327863 8192 8 37297 39585 489979 605694 8192 16 53006 62059 854214 789519 8192 32 72982 91873 772028 967748 8192 64 79517 102233 983201 825879 8192 128 106388 138509 1158852 1234105 8192 256 103933 145747 1474995 1404455 8192 512 134602 178524 1299889 1324492 16384 4 20880 21442 325318 362013 16384 8 34352 40405 600522 656567 16384 16 49982 59965 854488 965923 16384 32 63543 97271 1089508 1209321 16384 64 100334 116835 1283689 1188284 16384 128 114161 159756 1374037 1244990 16384 256 121970 151865 1112203 1391792 16384 512 122735 151103 1372062 1465458 32768 4 21510 24365 363172 363196 32768 8 37557 38645 532579 559685 32768 16 58781 64612 811630 774217 32768 32 79932 98360 1086905 1159393 32768 64 99053 132193 1376801 1268404 32768 128 108767 146168 1294520 1237276 32768 256 146582 148810 1589757 1481648 32768 512 119429 174270 1636357 1560160 65536 4 21461 22067 386362 357240 65536 8 38254 40667 626222 569665 65536 16 54779 72865 889058 1054210 65536 32 89188 104173 1162501 1143172 65536 64 102914 114039 1272595 1231207 65536 128 120458 140147 1479334 1292267 65536 256 121881 176847 1693475 1527398 65536 512 133153 171422