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: Thu May 1 15:08:28 2025 Auto Mode Machine = Linux oleg153-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-oleg153-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 8008 9298 177324 336467 64 8 7105 27863 471099 119156 64 16 8672 59694 725882 620221 64 32 9522 81620 1087638 969761 64 64 5708 98914 1363961 2006158 128 4 4505 10567 329205 194250 128 8 7197 30970 522855 341129 128 16 15839 44725 600657 354649 128 32 13534 41330 1391557 789741 128 64 7756 114991 1373754 1421023 128 128 9482 62406 2027414 1391557 256 4 9565 20570 187265 327779 256 8 10540 31162 495999 549283 256 16 22164 74483 577651 460279 256 32 22493 66371 1185399 952062 256 64 17806 84574 664935 552960 256 128 25684 119786 113673 1707589 256 256 26301 152654 1752173 203329 512 4 10891 11684 339963 100807 512 8 15642 27876 711133 418628 512 16 32443 36490 637650 141984 512 32 33598 72233 706221 267073 512 64 18415 45217 720195 326921 512 128 25824 63697 1354190 477133 512 256 31259 47420 893740 1590957 512 512 26609 43794 1707325 1130370 1024 4 9928 17097 135844 391312 1024 8 17959 19249 105819 399539 1024 16 31587 41877 846998 364264 1024 32 42188 81768 1042770 462929 1024 64 26855 93499 685023 1264413 1024 128 41298 68230 1273410 1013010 1024 256 46272 109423 999804 610184 1024 512 31372 65724 1311117 575902 2048 4 13453 14072 297108 245680 2048 8 20983 20559 187668 180124 2048 16 29486 23841 653286 441011 2048 32 38242 88443 848740 1049113 2048 64 51846 71027 928359 393099 2048 128 71550 85704 598484 1107691 2048 256 62186 83602 1014422 1436250 2048 512 81564 68141 1446407 991702 4096 4 9944 15741 180171 245504 4096 8 19636 21901 249465 363989 4096 16 28030 40020 463446 325747 4096 32 38512 42261 510397 317964 4096 64 58393 42534 1117258 571123 4096 128 49568 85509 879539 992264 4096 256 56175 75819 773979 1173664 4096 512 82584 103544 721879 912424 8192 4 10574 8376 184945 229815 8192 8 18844 22298 328534 172006 8192 16 23539 27829 330509 314000 8192 32 45336 34512 713467 514900 8192 64 34292 66865 735631 694587 8192 128 74472 82618 859062 512382 8192 256 53615 67493 1346236 1156083 8192 512 61570 110596 1277607 1349144 16384 4 11736 12053 218873 231812 16384 8 5625 19950 303907 253313 16384 16 25264 31775 336634 558950 16384 32 40667 47279 341370 670566 16384 64 41060 46978 772321 357315 16384 128 54245 69977 616866 716456 16384 256 55946 72253 747822 963472 16384 512 63752 82896 785726 894030 32768 4 11109 12608 210719 203343 32768 8 20684 22252 300301 361334 32768 16 28368 33689 421681 683263 32768 32 41438 42388 506609 559170 32768 64 50833 64784 405624 583444 32768 128 57988 69395 783436 1104860 32768 256 59724 70482 1119129 657423 32768 512 59729 87074 767524 916022 65536 4 11482 13090 301996 238021 65536 8 24496 24138 379329 355538 65536 16 33942 34651 424052 457577 65536 32 42342 50260 582304 450128 65536 64 46228 51754 690514 571866 65536 128