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 15:43:37 2025 Auto Mode Machine = Linux oleg338-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-oleg338-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 9647 13889 316997 340738 64 8 6860 33898 576282 546928 64 16 6188 61655 771797 821391 64 32 10362 86849 1163036 1255511 64 64 17126 100469 1518251 1526887 128 4 11032 23612 351630 312169 128 8 15019 20424 637004 313811 128 16 14630 20037 1067750 853794 128 32 13042 81992 1111981 1231904 128 64 8540 110539 1391557 1220700 128 128 15794 106759 1755594 1939522 256 4 15167 18216 393772 129885 256 8 19190 43315 723153 259872 256 16 23820 65056 512818 386682 256 32 10987 90911 1190657 1168627 256 64 20059 92893 201573 1384034 256 128 33194 150493 1540948 1581810 256 256 47206 135371 1981783 2030503 512 4 9469 20398 294910 159702 512 8 14353 41075