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: Wed Jan 15 18:56:35 2025 Auto Mode Machine = Linux oleg453-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-oleg453-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 7310 12879 743988 1049372 64 8 11949 37872 969761 56634 64 16 12054 66878 1163036 1101022 64 32 14473 85548 1249666 889431 64 64 9000 117641 1892980 1599680 128 4 12680 28107 767171 656477 128 8 18356 36497 934004 1032829 128 16 17438 43507 962469 1067750 128 32 26343 64974 1579934 1508887 128 64 12333 117559 1346196 1755594 128 128 13819 142678 2035099 2132084 256 4 15006 27693 672010 755195 256 8 26503 47903 988889 1112909 256 16 31057 62792 1219045 725106 256 32 38624 110583 1334162 1489641 256 64 24262 117918 1579483 1540948 256 128 32136 142296 1639786 996229 256 256 25772 153286 2486631 2152625 512 4 20401 26771 767559 558977 512 8 31661 53155 873740 1319250 512 16 40330 73817 1210664 1230786 512 32 31341 76122 1442420 1302447 512 64 41960 134699 1635797 872320 512 128 65032 122142 1747618 1772135 512 256 55598 195282 1809465 1985091 512 512 62552 102237 914287 2402629 1024 4 16000 28693 696578 785932 1024 8 23271 45816 1130312 1053512 1024 16 38126 57514 1164956 1345623 1024 32 54820 120075 1259592 1298041 1024 64 67020 118902 1229309 1499217 1024 128 68176 90498 1563622 1584972 1024 256 72310 141632 1651398 1194770 1024 512 98038 180121 1806273 1146607 2048 4 23209 23992 663427 662966 2048 8 43750 33698 1036955 1027528 2048 16 44219 60184 1044393 1377297 2048 32 79531 112650 1235996 1393156 2048 64 83374 94885 1509175 1533970 2048 128 112495 143568 1208181 1452522 2048 256 90957 136179 1693997 1736811 2048 512 105046 203438 1936062 1866644 4096 4 26575 28302 647397 510989 4096 8 43866 48114 1071411 912424 4096 16 58257 77964 1348730 1088725 4096 32 84752 105219 1410404 1311559 4096 64 96441 145465 1720256 1150247 4096 128 118322 152933 1695302 1499795 4096 256 117938 160645 1770061 1449434 4096 512 121076 178148 1796530 1828656 8192 4 26966 29709 852984 728380 8192 8 44061 50407 1032791 1008865 8192 16 63370 76678 1314711 1289257 8192 32 84926 107115 1472846 1439766 8192 64 110030 111133 1554471 1625664 8192 128 111816 156739 1642293 1335250 8192 256 118588 166449 1512258 1747803 8192 512 122798 169448 1752350 1669828 16384 4 24577 26778 677808 693297 16384 8 43131 47298 942087 1008240 16384 16 69522 75366 1103824 1203560 16384 32 79426 104131 1560394 1607405 16384 64 99316 122132 1554148 1522133 16384 128 112038 152535 1334856 1564871 16384 256 121263 150841 1552252 1778003 16384 512 127016 128690 1791351 1616441 32768 4 26058 25600 802016 753913 32768 8 39821 43906 1011325 974137 32768 16 59612 72175 1328415 1350873 32768 32 84857 104868 1501198 1315195 32768 64 105019 132088 1333713 1552459 32768 128 113109 154685 1646807 1696676 32768 256 127143 144743 1773547 1682140 32768 512 134576 173075 1544486 1797273 65536 4 26874 28881 781547 822862 65536 8 46303 50146 1009023 1073763 65536 16 70493 75437 1359531 1326587 65536 32 90722 112442 1344108 1413299 65536 64 104190 134038 1608481 1620457 65536 128 122903 152861 1763996 1722413 65536 256 128461 155565 1729686 1659692 65536 512