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: Fri May 16 08:53:47 2025 Auto Mode Machine = Linux oleg111-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-oleg111-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 6428 25712 695778 627470 64 8 15751 37602 1017549 1083249 64 16 8436 74321 1385075 1255511 64 32 12984 51446 1363961 1452528 64 64 17062 103252 1828508 2067979 128 4 8791 26711 743788 684081 128 8 22183 47940 504196 761728 128 16 19101 79656 220679 1252014 128 32 24297 95243 1455701 1622919 128 64 21018 74889 1421023 1557024 128 128 22690 153094 2035099 1885042 256 4 13709 19806 771473 671589 256 8 20435 50773 306537 1016025 256 16 35985 70313 828628 1208072 256 32 27594 95242 1361224 988889 256 64 29061 131831 1293967 924200 256 128 27580 110880 1829808 1881098 256 256 33070 90012 1911233 1897721 512 4 21161 28712 778128 485767 512 8 28892 36482 1105351 915847 512 16 29713 63807 1245780 1236455 512 32 52936 131587 1276891 1333173 512 64 42542 123761 1533034 1537424 512 128 43563 151297 1604029 1471074 512 256 53179 113050 1917728 1947291 512 512 71050 180342 1861217 2116152 1024 4 24368 26444 600879 672791 1024 8 29321 35628 982648 1017811 1024 16 37572 85297 904621 1199106 1024 32 73495 78925 1343938 1437980 1024 64 87275 124000 1067920 876022 1024 128 90124 168141 1130312 1565902 1024 256 69161 129785 1693061 1841906 1024 512 109566 161084 1523683 1932227 2048 4 20395 26587 751867 788950 2048 8 41496 51517 726494 791640 2048 16 69534 59725 782268 977149 2048 32 74660 102584 1328106 1493692 2048 64 89023 104655 1617444 1320552 2048 128 105708 125597 1315294 1677130 2048 256 92206 191258 1709505 2076967 2048 512 86993 171408 984654 1370922 4096 4 24929 26596 752255 640709 4096 8 36794 46609 873368 1184181 4096 16 59962 79361 1239367 1216549 4096 32 76757 89375 1208589 924603 4096 64 88518 115607 1276762 1285648 4096 128 106086 143112 1548041 1371339 4096 256 104569 113683 1744537 1855917 4096 512 91863 160432 1728216 1706755 8192 4 24093 25431 815839 486228 8192 8 35220 47269 1035655 664292 8192 16 57513 69320 981880 951324 8192 32 59190 88247 1286842 1324492 8192 64 77653 81428 1013627 1489704 8192 128 107251 137590 1629597 1435435 8192 256 98444 130645 1503721 1832636 8192 512 104789 149295 996691 1702088 16384 4 24315 27426 741728 752836 16384 8 39572 45503 1190611 748636 16384 16 63851 68855 1275398 1240831 16384 32 81049 90152 1340428 1017330 16384 64 91914 124125 1387296 1456081 16384 128 98564 110284 1426668 1699218 16384 256 106863 128383 1458956 1373460 16384 512 103389 142898 1255108 1131579 32768 4 24848 29000 588493 794606 32768 8 42939 49033 915254 1101964 32768 16 71353 75779 1198061 1209106 32768 32 95699 110804 1522467 1368521 32768 64 106704 123583 1264099 1532363 32768 128 106948 119215 1184279 1243939 32768 256 98083 141825 1659894 1542164 32768 512 114786 127111 1432987 1772495 65536 4 26597 26517 859163 798801 65536 8 45489 51091 1090864 1048576 65536 16 71361 73964 1368867 1334418 65536 32 97650 113476 1440412 1464650 65536 64 115001 133236 1363117 1546353 65536 128