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: Wed May 21 13:18:55 2025 Auto Mode Machine = Linux oleg108-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-oleg108-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 3060 21391 340306 336889 64 8 8175 16877 561808 565358 64 16 11704 22207 315136 413101 64 32 10540 86014 1101022 1183548 64 64 11799 94525 1492919 1599680 128 4 10436 20986 391646 397444 128 8 6864 40074 566435 706589 128 16 9048 73778 814915 800337 128 32 17153 41342 649331 1185654 128 64 17515 84655 1642783 1406136 128 128 13428 146294 1997245 1852520 256 4 12474 19079 368248 152741 256 8 13148 35359 169874 752549 256 16 8823 71808 907792 759469 256 32 22926 97517 1332507 1168627 256 64 15445 54375 1455317 962301 256 128 30110 113469 894929 1405778 256 256 43134 131283 500857 1855098 512 4 13234 5277 399397 359543 512 8 9688 18875 579179 573456 512 16 20951 58095 844865 861818 512 32 38731 46912 729244 1152822 512 64 54439 97449 1296159 280064 512 128 30638 91773 1541840 1340664 512 256 54958 161917 1902438 1897396 512 512 44952 151169 2007358 2081286 1024 4 8365 15590 238307 298535 1024 8 19854 22774 629778 636498 1024 16 58454 64354 828375 856799 1024 32 67711 84691 486692 1467458 1024 64 67068 60745 1250425 1153071 1024 128 65118 103411 1633188 1546729 1024 256 99476 78167 1803239 1160862 1024 512 75868 76812 1670669 1735476 2048 4 17526 17548 368416 253968 2048 8 25361 34090 204776 407090 2048 16 32255 60208 589854 347351 2048 32 30884 71890 1132070 1249480 2048 64 54787 91797 1087635 651206 2048 128 83153 123001 641815 1351722 2048 256 60511 104467 1420339 1687011 2048 512 106544 151648 1302135 1195569 4096 4 17859 23881 346355 265733 4096 8 27132 34057 430025 404986 4096 16 46555 42658 621068 752255 4096 32 57858 89027 1205790 372263 4096 64 70662 124885 1088449 1290476 4096 128 72163 90744 1385271 594998 4096 256 60770 125462 1617719 1014351 4096 512 106739 154309 882203 1458664 8192 4 17689 21043 295758 308505 8192 8 33110 34486 584102 515898 8192 16 51813 53582 793402 744445 8192 32