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: Tue Jan 7 09:56:51 2025 Auto Mode Machine = Linux oleg405-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-oleg405-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 15144 31760 720041 688639 64 8 19723 58715 1083249 1452528 64 16 21886 90145 1892980 1330167 64 32 21461 113034 1210227 1392258 64 64 24834 110932 1879725 2772930 128 4 21581 29514 581781 637004 128 8 26683 58287 962469 836500 128 16 36729 114818 1727352 1082825 128 32 37625 125267 1471662 1391557 128 64 47599 166688 1802755 2660335 128 128 46426 189921 1684006 1802755 256 4 24700 31667 812944 1044693 256 8 35058 59646 1300235 1163562 256 16 61522 90712 1447470 1455317 256 32 59885 127103 1479379 1619994 256 64 78359 148310 1729594 1662639 256 128 76261 155709 2210228 2015259 256 256 71114 166347 2285501 2205688 512 4 27114 34453 793951 1230786 512 8 39155 51874 1020276 934173 512 16 52282 101163 1413929 1303238 512 32 83427 132366 1600443 1319250 512 64 95537 151885 1475116 1455126 512 128 95203 143416 1711407 1933266 512 256 93536 175393 1821745 1829505 512 512 104557 215226 2107844 2860238 1024 4 26221 31878 938625 813933 1024 8 43043 57725 1092921 1121751 1024 16 60638 68207 1311117 1268896 1024 32 80151 114514 1789714 1236742 1024 64 99175 154030 1872419 1695735 1024 128 123447 182300 1678504 1625769 1024 256 115914 182890 1777125 1738286 1024 512 101354 216580 2077065 1865912 2048 4 29832 32622 1016343 882394 2048 8 48901 56915 1193576 1097642 2048 16 76669 98239 1482862 1787035 2048 32 108988 133107 1599971 1585208 2048 64 124573 171295 1718053 1713598 2048 128 124128 177068 1650385 1797882 2048 256 127784 196715 1718397 1702391 2048 512 123879 187648 1996356 2137434 4096 4 29613 33387 902787 928149 4096 8 48669 55645 1263801 1208674 4096 16 70936 78384 1258800 1114287 4096 32 95687 126439 1505974 1526040 4096 64 112638 141892 1730479 1606825 4096 128 115935 167328 1718192 1701009 4096 256 135840 205106 1760989 1799729 4096 512 144667 176195 1868635 1700336 8192 4 28889 30811 828728 846636 8192 8 47251 55356 1050409 1105105 8192 16 70216 85332 1276800 1502866 8192 32 101635 121717 1553557 1480844 8192 64 108536 155256 1659665 1615195 8192 128 136306 181556 1806809 1762869 8192 256 152511 183110 1857202 1954611 8192 512 141803 222169 1891867 1921599 16384 4 29838 31963 941236 915261 16384 8 48845 53662 1165372 1123807 16384 16 72404 85930 1539249 1497456 16384 32 94617 112888 1587135 1512585 16384 64 110529 149314 1718124 1530234 16384 128 130482 163431 1732286 1759430 16384 256 112262 179552 1735962 1613557 16384 512 141291 182596 1974424 1850839 32768 4 27921 30767 822510 759928 32768 8 48219 53116 1162807 1150234 32768 16 71710 82218 1411384 1412719 32768 32 101161 122764 1522754 1633245 32768 64 123270 138264 1666900 1623694 32768 128 130254 165374 1709613 1797085 32768 256 141532 172998 1810579 1804020 32768 512 142815 186785 1895950 1907554 65536 4