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: Mon Jun 9 10:18:32 2025 Auto Mode Machine = Linux oleg303-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-oleg303-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 14041 32385 331481 346008 64 8 19323 41159 874936 438759 64 16 22061 88774 901377 743988 64 32 28908 117230 987600 743988 64 64 29398 149896 1492919 1049372 128 4 17652 31985 462100 357483 128 8 28848 55320 921183 785122 128 16 30231 59866 1165070 876086 128 32 39851 81693 1024942 1373754 128 64 44502 125472 1471662 1705404 128 128 45025 145777 2035099 1067750 256 4 21607 35599 559005 366239 256 8 29196 42238 605332 861885 256 16 47627 66065 927393 738065 256 32 64926 138586 1142514 1532153 256 64 72030 143016 1907837 1202660 256 128 79726 127238 1610276 1384034 256 256 76277 222962 2228578 2285501 512 4 28099 33905 496091 306048 512 8 45836 48169 561462 625030 512 16 45209 66080 898601 993834 512 32 85022 136566 1145443 1075459 512 64 86985 156433 1546280 1753325 512 128 89557 177789 2032051 2114069 512 256 102545 240054 1730717 1551867 512 512 120727 264442 2160868 2402629 1024 4 30398 33136 545891 482536 1024 8 40633 45976 763033 580181 1024 16 73850 69212 905384 931096 1024 32 80307 125456 1287921 1428415 1024 64 83360 152089 1479591 1412443 1024 128 86203 182820 1478064 1517224 1024 256 133509 249087 2060128 2132761 1024 512 113288 242491 2245375 2381058 2048 4 25271 31068 313434 369414 2048 8 49428 38456 674365 812071 2048 16 81870 88168 1090535 1078486 2048 32 91285 109876 1466157 1552826 2048 64 103334 162513 1577928 1174321 2048 128 152344 177149 1831618 1701042 2048 256 83360 135486 1761024 1854954 2048 512 171940 179620 1703741 1921339 4096 4 26210 28567 491713 462249 4096 8 44683 45570 618363 630342 4096 16 75985 80501 854770 931521 4096 32 100097 120247 1420668 1480409 4096 64 112871 125999 1145110 1180762 4096 128 151709 214103 1429653 1482965 4096 256 155468 176157 1441771 2095155 4096 512 133290 205828 1848528 1925604 8192 4 24231 32934 406389 322912 8192 8 45892 52324 674913 740961 8192 16 65976 72846 956434 867521 8192 32 102085 102394 903994 1097376 8192 64 125064 152420 1330957 1565449 8192 128 160885 181757 1680116 1448628 8192 256 151827 223240 1842562 1753065 8192 512 156207 185046 1593103 1650576 16384 4 26527 32656 421713 541350 16384 8 51374 53156 675935 708186 16384 16 73332 86797 1016999 1001715 16384 32 114750 118520 1171971 1048035 16384 64 118596 157696 1282084 1231337 16384 128 145235 187132 1597354 1686458 16384 256 156338 186442 1583149 1590514 16384 512 162835 207483 1709533 1484869 32768 4 27249 29798 514500 450017 32768 8 49813 50874 667439 758096 32768 16 78719 87215 989525 1021002 32768 32 93088 114383 1324281 1300731 32768 64 126204 155911 1387644 1423827 32768 128