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 Sep 6 19:46:13 2026 Auto Mode Machine = Linux oleg102-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-oleg102-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 9496 20780 1188789 604849 64 8 17572 42214 1452528 769584 64 16 20544 65635 1780008 1562436 64 32 22416 73993 2203800 916769 64 64 21382 103212 2801873 1599680 128 4 16471 22491 533241 590094 128 8 19467 41209 1504659 680612 128 16 30549 55948 1114289 785122 128 32 22264 98008 1281909 1162547 128 64 37102 158191 1852520 1243315 128 128 36241 127105 1778862 2098744 256 4 15523 22363 847597 557844 256 8 26213 38787 771473 792543 256 16 42816 57853 1639786 1008392 256 32 48210 86308 1420658 1185399 256 64 57617 164840 1868008 1158540 256 128