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 Apr 30 22:02:35 2025 Auto Mode Machine = Linux oleg423-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-oleg423-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 11702 20100 324665 353760 64 8 13369 21917 542506 492717 64 16 20486 69259 998622 156814 64 32 33059 69330 1105556 1083249 64 64 25828 142496 1562436 1933893 128 4 13773 21029 347758 223342 128 8 30615 42467 603357 584313 128 16 35646 74984 805138 257516 128 32 54750 133622 1152564 1085013 128 64 42498 119177 1436229 659704 128 128 59759 201845 1732927 1802755 256 4 23094 22531 419626 110208 256 8 43112 47206 603630 556398 256 16 40836 76598 1354356 483056 256 32 63240 119293 1117543 1032636 256 64 78669 160816 1206714 1286217 256 128 35854 251002 1683493 1652404 256 256 82210 208299 1802167 699594 512 4 20224 21792 251114 289425 512 8 28859 40382 472306 477133 512 16 23853 53311 732478 642419 512 32 80037 130049 610287 997991 512 64 66762 148668 475864 1252318 512 128 63571 198220 2007358 697732 512 256 108591 234114 1759070 1867692 512 512 109801 204156 1772135 1854787 1024 4 25210 25943 373839 351533 1024 8 44671 54727 453878 478771 1024 16 68522 75067 829175 584523 1024 32 64422 92013 720655 1077836 1024 64 75908 162954 1225101 1349428 1024 128 111534 172303 1542286 1278338 1024 256 166802 167838 1167489 1851434 1024 512 102093 200429 1954207 1630707 2048 4 25075 26370 364864 325033 2048 8 41568 42023 513266 556963 2048 16 48881 54772 804390 941589 2048 32 64705 91323 1014902 914717 2048 64 88256 126209 1039087 1307885 2048 128 131467 102466 1185177 827482 2048 256 146369 156169 1667687 1561009 2048 512 115335 176276 1765730 1438174 4096 4 22391 24644 257434 271293 4096 8 44983 49169 578528 625636 4096 16 61272 74784 839196 930915 4096 32 84747 103113 1090521 1149246 4096 64 118177 120972 1291641 1466008 4096 128 137210 191357 1032766 1394152 4096 256 135083 238901 1656880 1686979 4096 512 110681 199134 1007864 1601284 8192 4 25786 26466 322979 333386 8192 8 43104 47504 556254 628369 8192 16 68559 71429 729214 824630 8192 32 83163 109232 947807 976633 8192 64 81063 115287 1253007 1317029 8192 128 98670 149809 1177356 1451688 8192 256 152488 180552 1316828 1154297 8192 512 108735 162636 1148432 1639706 16384 4 23618 23775 350061 388309 16384 8 44229 47823 566451 586379 16384 16 70621 73735 798128 853109 16384 32 81401 117561 857355 801993 16384 64 107383 137002 915566 872043 16384 128 90689 135679 1211923 1062719 16384 256 93918 136162 1473503 1014866 16384 512 132217 169666 1039993 1278506 32768 4 22657 27039 336123 305648 32768 8 43379 39984 600763 511776 32768 16 52498 67703 784864 705706 32768 32 83575 108809 810687 1014745 32768 64 94656 103830 951122 888285 32768 128 127861 153217 1156613 1305079 32768 256 141471 190304 1510255 1522821 32768 512 61108 185579 1737252 1161578 65536 4