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: Sun Jun 28 03:15:32 2026 Auto Mode Machine = Linux oleg417-client.virtnet 4.18.0rh8.10-debug #2 SMP Mon Jul 14 01 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-oleg417-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 11053 20112 561808 587635 64 8 18254 30246 818885 799377 64 16 19024 57867 1101022 1049372 64 32 21235 68886 1330167 901377 64 64 22236 100960 2133730 1690338 128 4 13890 19044 653282 618653 128 8 21989 41557 1102844 1436229 128 16 25754 70245 1294270 962469 128 32 40315 121085 1710838 1240443 128 64 36644 106844 1705404 2608629 128 128 26612 160173 2098744 1705404 256 4 16940 24982 815414 901693 256 8 21616 29712 917880 1098113 256 16 32348 68028 1334162 1489641 256 32 57710 125557 2030503 1523457 256 64 58700 128718 1743637 1540948 256 128