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 10:29:28 2025 Auto Mode Machine = Linux oleg157-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-oleg157-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 16330 37824 913649 842003 64 8 22236 53422 916769 1599680 64 16 22284 82271 1452528 1892980 64 32 28815 117900 1279447 2278628 64 64 29331 155632 2298136 2772930 128 4 25733 33721 723735 744820 128 8 27038 57947 1007629 1579934 128 16 31488 71795 1266785 1833539 128 32 42765 125354 1421023 1504659 128 64 42792 161620 1778862 1579934 128 128 51737 192785 579270 1939522 256 4 23657 28676 713067 759469 256 8 35107 46300 917880 1016025 256 16 46476 91298 1241598 1479379 256 32 54666 110401 1384034 1368162 256 64 62030 154677 1600674 1619994 256 128 54169 178664 2228578 1985448 256 256 66705 233584 2118645 2049885 512 4 27274 29795 996139 823167 512 8 40757 52783 1030064 978885 512 16 51359 84948 1770674 1574625 512 32 67913 121273 1570020 1302447 512 64 91589 129813 1376763 1510391 512 128 66475 163061 1514652 1533034 512 256 89966 177348 1940253 600391 512 512 105653 194310 2486072 2460437 1024 4 27889 30005 736220 948157 1024 8 44355 57499 1008964 910181 1024 16 68413 89840 1289855 1321200 1024 32 85375 113023 1673273 2236023 1024 64 114398 151997 1909888 1615374 1024 128 104373 166912 1841906 1857840 1024 256 117497 237529 1899750 1903117 1024 512 124923 202213 2085132 1932227 2048 4 28876 33218 927958 824148 2048 8 45883 54906 950339 1261036 2048 16 73643 83992 1438414 1303716 2048 32 96104 116662 1437211 1502575 2048 64 120442 142272 1586379 1774484 2048 128 122848 183542 1914061 2167092 2048 256 131180 205950 1915768 2113246 2048 512 160617 197053 1885905 1817281 4096 4 32048 35081 916513 837600 4096 8 51817 55910 1429653 1268185 4096 16 78293 102983 1430605 1668465 4096 32 99256 121586 1632631 1498226 4096 64 125521 165468 1745246 1841001 4096 128 137973 179145 1997936 1768603 4096 256 157392 194022 1976786 1925820 4096 512 167306 228684 1951413 2110340 8192 4 32562 33291 911041 972790 8192 8 52780 53807 1046346 1354943 8192 16 76296 92291 1272639 1365768 8192 32 103241 131103 1707332 1680445 8192 64 139981 167221 1721360 1553628 8192 128 137161 179488 1854195 1904240 8192 256 155602 188426 1843847 1638377 8192 512 172064 227139 1747803 2042935 16384 4 31055 32672 1011163 898049 16384 8 51316 57327 1245554 1307278 16384 16 75593 93495 1516624 1677688 16384 32 114210 122991 1677320 1690108 16384 64 131429 164936 1771038 1803196 16384 128 158006 189184 1822468 1698672 16384 256 161772 208769 2003436 1920997 16384 512 169944 212137 2064776 2034275 32768 4 32445 32164 883352 794450 32768 8 50239 57386 1286835 1189702 32768 16 78993 89991 1558303 1375533 32768 32 109364 131660 1829889 1712895 32768 64 134380 162230 1874155 1881699 32768 128 143931 178668 1916144 1897284 32768 256 171954 210159 1965215 1963082 32768 512 170595 191176 1982936 1939973 65536 4 31988 34123 890734 856793 65536 8