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: Sun Apr 13 05:14:40 2025 Auto Mode Machine = Linux oleg419-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-oleg419-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 13502 30033 520419 340738 64 8 11980 46783 481234 587635 64 16 18812 73912 727850 821391 64 32 26510 120331 1029254 1648808 64 64 12630 94393 1492919 1484662 128 4 16911 24307 372102 385460 128 8 25775 37869 587511 633995 128 16 36835 80917 1155043 914904 128 32 45505 100635 1093856 1024942 128 64 47995 156713 2035099 1254941 128 128 45471 172471 1905110 2166499 256 4 20152 26367 507966 387240 256 8 32686 43485 603970 514045 256 16 45166 82979 1280084 973645 256 32 59895 135303 1197295 1619994 256 64 55534 137556 1581810 2015259 256 128 75808 186032 1579483 1506359 256 256 73208 167855 1802167 2486631 512 4 23674 33346 455960 511572 512 8 42770 52006 602412 699322 512 16 68459 79900 761841 768934 512 32 59868 124269 1684557 1103647 512 64 86387 119905 1450212 1108203 512 128 94691 164573 1537424 1931527 512 256 111738 213960 1736314 1747618 512 512 108290 214859 2304647 2625909 1024 4 24788 24443 369275 385828 1024 8 39763 47269 576288 836604 1024 16 61383 82063 846998 948157 1024 32 73689 99716 1359680 1311518 1024 64 76634 128692 1311518 1488307 1024 128 115459 156460 1633188 1834824 1024 256 120018 202738 1805514 1806273 1024 512 136189 167707 1889720 1805514 2048 4 26711 30575 430426 423403 2048 8 49469 52250 560013 632272 2048 16 66829 81841 960111 779287 2048 32 97288 121412 1375312 1216738 2048 64 106967 176418 1591080 1284033 2048 128 133490 155165 1574169 1469167 2048 256 113418 209022 1943069 1937372 2048 512 170243 220165 2005679 1785550 4096 4 24621 27386 423495 370105 4096 8 39973 42879 582965 627350 4096 16 69381 79379 733123 751959 4096 32 104767 108307 1299457 900044 4096 64 105583 140896 1504129 1635740 4096 128 142281 192651 1878031 1561549 4096 256 151227 193362 1691796 1590168 4096 512 162810 203780 1169270 1723881 8192 4 25416 29008 421701 440076 8192 8 42842 46779 611701 704442 8192 16 70161 75903 977439 887944 8192 32 94693 107118 1120969 951218 8192 64 115030 151372 1198046 1201691 8192 128 132911 163024 1486481 1508871 8192 256 147412 152571 1630292 1349780 8192 512 137309 187391 1421715 1728982 16384 4 27546 27572 424963 424357 16384 8 43469 48289 638005 693969 16384 16 76108 76302 844532 890670 16384 32 96885 103907 1154952 1230213 16384 64 115784 133719 1614998 1610985 16384 128 136274 176814 1512285 1756237 16384 256 151863 179466 1542323 1803196 16384 512 142558 199513 1986869 1778187 32768 4 28058 28237 366147 501807 32768 8