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 Apr 1 13:22:06 2025 Auto Mode Machine = Linux oleg108-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-oleg108-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 12195 17982 351444 143486 64 8 17729 32129 546928 116165 64 16 16798 61485 658243 112090 64 32 24231 83655 863676 1049372 64 64 40126 129816 969761 242531 128 4 14258 23659 196023 406472 128 8 19958 38392 587511 571257 128 16 35348 101992 393945 771581 128 32 45536 82521 1032829 1622919 128 64 72395 135717 1217930 1093856 128 128 21947 136615 1455701 1373754 256 4 21458 23938 351147 351607 256 8 30330 36173 514045 527687 256 16 40577 31935 748875 695966 256 32 64989 107559 1103757 1384034 256 64 46886 85962 1384034 1327564 256 128 81685 158116 1415041 1561112 256 256 81369 128641 1924938 684432 512 4 20835 21197 269892 388487 512 8 42924 38822 723105 543555 512 16 51701 58335 743123 973559 512 32 70165 105918 1176828 1233614 512 64 84031 117891 1204552 1479181 512 128 91328 150850 1368865 1261144 512 256 98028 223584 990168 1594501 512 512 98876 218244 1809465 1797349 1024 4 21651 23649 362603 371961 1024 8 35855 47541 554060 549663 1024 16 62302 67434 828535 918354 1024 32 78150 121070 1248970 901394 1024 64 106533 133368 984450 1031252 1024 128 127842 158218 1189146 1361836 1024 256 141632 181914 1630707 1750329 1024 512 115326 247879 1819280 1727102 2048 4 23415 22608 303051 285315 2048 8 38393 41950 642199 488069 2048 16 61876 70322 902227 908237 2048 32 82186 111979 967356 1085299 2048 64 107573 143106 830121 1087085 2048 128 124718 161717 1104558 1378181 2048 256 134293 194158 1412398 1617749 2048 512 121363 183774 1655793 1257160 4096 4 22364 24944 366302 348689 4096 8 34688 46060 571979 608270 4096 16 60130 71602 747835 763488 4096 32 84333 95468 808509 876175 4096 64 109377 139576 902597 1006624 4096 128 122867 148094 1250645 1252194 4096 256 126209 166769 1211487 1178737 4096 512 155350 219824 1511406 1688305 8192 4 22643 23470 284730 342273 8192 8 38843 39719 520493 527161 8192 16 56731 61897 703778 754731 8192 32 82477 101322 992975 866230 8192 64 104234 142089 1053921 1030963 8192 128 121860 165766 1115909 1298072 8192 256 103571 183833 1329875 1329875 8192 512 124997 178623 1290079 1584215 16384 4 21354 22812 300778 314477 16384 8 37173 43157 547134 567175 16384 16 57585 63678 671883 729112 16384 32 80622 95291 959021 957792 16384 64 112954 121291 1219948 1200553 16384 128 118781 162766 1150563 1194689 16384 256 136742 166726 1390947 1408884 16384 512 141349 182934 1282898 1667915 32768 4 21279 21827 304294 345815 32768 8 37970 43728 501009 511576 32768 16 60237 71545 766125 826532 32768 32 88105 107810 1018784 1014049 32768 64 110951 129792 1218594 1153071 32768 128 116794 168607 1306742 1383969 32768 256 147375 174779 1364364 1405682 32768 512 148165 191148 1407438 1464362 65536 4 21917 22958 334722 337287 65536 8 39509 42171 512840 527368