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: Mon Mar 10 13:16:43 2025 Auto Mode Machine = Linux oleg119-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-oleg119-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 11263 26382 296349 537079 64 8 12856 32256 508587 653436 64 16 22284 87301 789967 799377 64 32 24214 75386 1002351 1599680 64 64 27549 153146 1392258 2067979 128 4 19491 16915 345965 291491 128 8 21501 30526 659704 495814 128 16 29823 70642 1000121 652488 128 32 33228 77394 1543594 1093856 128 64 39801 118624 1048974 1827299 128 128 46917 139128 2166499 1642783 256 4 22600 25364 551823 304365 256 8 32140 36286 894929 512084 256 16 41084 59659 1137672 831194 256 32 53001 62991 1525622 1506359 256 64 56978 114388 1300235 1572543 256 128 73899 123081 1407621 1817419 256 256 81841 139577 1639786 2261434 512 4 21763 23123 467575 369949 512 8 38320 40676 635951 559560 512 16 47088 67984 1080328 711133 512 32 59954 81737 882718 1454140 512 64 71991 138979 1585086 1422357 512 128 76546 172852 1289930 1325766 512 256 115575 237034 2160868 2141475 512 512 97635 177231 1630828 1630828 1024 4 25965 28543 449085 499484 1024 8 39083 45525 498325 508713 1024 16 57248 80514 967813 902909 1024 32 95167 109248 1434138 1242826 1024 64 73881 166447 1597945 1584972 1024 128 120767 160506 1762539 1679160 1024 256 83163 191792 1592612 1689730 1024 512 125028 233742 1615374 2129589 2048 4 27694 18781 428558 446281 2048 8 44649 42555 826129 725451 2048 16 69135 77276 1127760 1156923 2048 32 100816 100702 964640 966920 2048 64 107857 130429 1037456 1678768 2048 128 111504 168061 1762469 1271112 2048 256 120364 199183 1797882 1693997 2048 512 175294 198373 1507851 1917479 4096 4 24013 28109 445180 418767 4096 8 45822 46391 645233 628405 4096 16 60423 75738 877114 1054315 4096 32 83667 92694 1289992 945049 4096 64 124896 123143 1639174 1973154 4096 128 120165 175530 1032766 1639018 4096 256 147992 199095 1226012 1420786 4096 512 161749 211953 1473932 1997007 8192 4 26308 31372 404043 499997 8192 8 40501 44923 745867 678257 8192 16 68673 73589 962624 1118670 8192 32 91435 125918 1461568 1226178 8192 64 131206 171148 1392446 1524673 8192 128 157756 175668 1771594 1362843 8192 256 141803 186699 1768221 1835475 8192 512 145936 226819 1541569 1440490 16384 4 26761 28604 468851 395185 16384 8 44804 47984 712807 671562 16384 16 54002 75465 978912 977506 16384 32 106379 107006 1163458 1194170 16384 64 116471 135284 1460910 1320111 16384 128 141648 174481 1460134 1439217 16384 256 127308 158346 1524801 1776991 16384 512 153241 180174 1471798 1692230 32768 4