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 May 21 07:58:53 2025 Auto Mode Machine = Linux oleg106-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-oleg106-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 16020 31588 969761 1232453 64 8 20577 62429 1599680 1087638 64 16 24768 101418 1279447 1484662 64 32 29780 115764 2358717 2467108 64 64 26769 130320 2689580 1734015 128 4 21329 29781 976473 774922 128 8 28514 60836 1057236 1172704 128 16 36405 77205 1162547 1561553 128 32 43272 148808 1373754 1231904 128 64 37501 141886 1598754 1802755 128 128 45567 133622 2409592 2035099 256 4 22634 33351 1019886 799625 256 8 40093 60177 1243036 1619994 256 16 49687 87940 1248819 1871263 256 32 71991 144401 1952947 1649865 256 64 65588 160001 1642294 1673001 256 128 71071 204451 1715775 1384034 256 256 74011 154878 2205688 2392442 512 4 30743 33793 814117 1066380 512 8 44410 61670 1333173 1142396 512 16 45225 86442 1135150 1306409 512 32 67887 128940 1869318 2032051 512 64 106803 150364 1399189 1505098 512 128 100826 152652 1916017 1963313 512 256 111304 215032 2116152 2327124 512 512 106401 224448 2811557 2524058 1024 4 28919 34556 869989 1028043 1024 8 52141 59743 1497127 1380217 1024 16 78287 87349 1245710 1221964 1024 32 84093 168114 1497127 1774922 1024 64 112901 186828 1828574 1284839 1024 128 140409 205129 1558516 1681790 1024 256 139679 250730 1920993 2160657 1024 512 146078 262435 2098375 2370545 2048 4 28879 34022 790765 1052455 2048 8 52147 52023 1030239 1230860 2048 16 70789 89334 1305301 1381950 2048 32 106577 142598 1488257 1696674 2048 64 131552 176494 1514764 1510236 2048 128 153419 202832 1889224 2100328 2048 256 133637 225600 1678768 1885905 2048 512 165055 234487 1935626 2024111 4096 4 30336 34595 853157 1030721 4096 8 51521 63285 1198388 1126784 4096 16 68175 93205 1496529 1402231 4096 32 120336 138205 1496008 1385606 4096 64 141436 191977 1820517 2033648 4096 128 162450 177823 1632011 1832557 4096 256 174120 201483 2024541 1836082 4096 512 185600 258554 1866807 1900679 8192 4 34834 38209 992258 1083329 8192 8 55408 55751 1386378 1263838 8192 16 79768 101398 1632849 1705976 8192 32 117071 146374 1852496 1852496 8192 64 145488 173133 1727157 1643628 8192 128 159445 204303 1698135 1736321 8192 256 175778 252194 1868209 1951835 8192 512 172094 218575 1826110 1926663 16384 4 30960 32773 916799 751288 16384 8 51062 54813 1363974 1285225 16384 16 81045 91891 1294888 1584683 16384 32 105063 128026 1604702 1461407 16384 64 129675 155109 1559509 1597354 16384 128 142788 182234 1796878 1772774 16384 256 163441 199622 1650926 1788088 16384 512 165291 187406 1568300 1650926 32768 4 29745 33838 850715 886990 32768 8 51582 55536 1200342 1244841 32768 16 82492 96807 1509409 1548733 32768 32 110253 124419 1659994 1673700 32768 64 130129 159363 1599525 1738637 32768 128 155626 199611 1761997 1740773 32768 256 167812 208446 1847550 1728361 32768 512 167594 216818 1797955 1806296 65536 4 31411 33330 935331 870470 65536 8 50382 53059