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 15:41:09 2025 Auto Mode Machine = Linux oleg431-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-oleg431-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 8480 8802 115914 351444 64 8 3716 47095 639427 560635 64 16 8883 56443 789967 565358 64 32 13651 94927 1066042 1163036 64 64 12296 104254 1392258 1599680 128 4 11458 23611 354649 164694 128 8 9600 36334 549618 566435 128 16 21943 66561 800337 809997 128 32 11205 94406 1123617 1102844 128 64 8819 55030 1319723 1487977 128 128 28907 142224 1939522 1705404 256 4 8442 21981 381462 333791 256 8 22549 45157 569985 555248 256 16 18940 43708 996229 965763 256 32 28545 87191 1102624 1099237 256 64 33965 81197 703260 1340826 256 128 46664 160097 1453348 1707589 256 256 18967 163884 766517 1543163 512 4 8665 14621 356026 269047 512 8 15548 42325 531055 754083 512 16 37558 64983 1115688 538918 512 32 43364 38160 184971 1032540 512 64 34540 107990 1240025 1242896 512 128 28898 109521 1411141 312779 512 256 38991 159892 1734911 2235086 512 512 17820 101364 1815584 1296941 1024 4