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 15:53:33 2025 Auto Mode Machine = Linux oleg441-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-oleg441-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 3410 8692 316623 376589 64 8 11944 14719 615952 524487 64 16 9677 59155 929467 639427 64 32 9648 86849 1049372 1049372 64 64 16706 82575 1638743 1484662 128 4 9685 20294 352785 332467 128 8 11387 45440 514339 554157 128 16 12206 66809 168413 702889 128 32 9518 89705 1121270 1024942 128 64 12812 118388 1359835 1363288 128 128 9543 116160 1543594 1858934 256 4 15931 17624 323143 256030 256 8 14894 38699 548161 474098 256 16 10785 60306 1070737 847597 256 32 17992 87818 1019886 1070737 256 64 13652 75272 1376935 1280084 256 128 39367 134237 1752173 1673001 256 256 31612 129948 1842366 2247235 512 4 14865 21821 349935 349536 512 8 29607 30265 622133 386390 512 16 42419 68367 747261 796306 512 32 25413 33985 1118011 941546 512 64 41494 119292 1248678 1273861 512 128 46951 137264 1505098 1624659 512 256 55076 154831 1854787 268912 512 512 23883 155290 402542 1889050 1024 4 18241 18536 209747 276830 1024 8 19246 35144 549945 398612 1024 16 33512 36395 776834 639150 1024 32 33749 41770 1137798 1058967 1024 64 50527 68798 894262 156574 1024 128 60883 103571 1152143 701929 1024 256 73488 187481 1729884 808874 1024 512 77207 130948 1063425 1653942 2048 4 16823 21281 270934 287482 2048 8 24774 28560 581351 542643 2048 16 42476 51967 909006 662762 2048 32 53569 88673 1095123 597776 2048 64 67926 88558 1329751 874132 2048 128 58636 54339 425522 400634 2048 256 46072 95406 1723915 1572727 2048 512 89315 174327 1729468 1175607 4096 4