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 15:09:43 2025 Auto Mode Machine = Linux oleg301-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-oleg301-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 10955 24381 245190 255943 64 8 8029 36572 481234 532815 64 16 18348 22039 681644 720041 64 32 14619 54319 1101022 1083249 64 64 19565 118524 1204796 1484662 128 4 16299 24064 207461 284992 128 8 22619 40712 515822 483316 128 16 12954 68664 766076 800337 128 32 18104 48415 1363288 814915 128 64 25780 87798 1487977 1294270 128 128 34189 170879 1162547 1755594 256 4 12433 16697 241463 137857 256 8 25627 14689 515032 242883 256 16 23460 60763 658008 727070 256 32 45544 101231 1008392 456366 256 64 61053 145694 273230 1325925 256 128 37960 161518 1213534 1405778 256 256