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 Mar 25 07:50:34 2025 Auto Mode Machine = Linux oleg329-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-oleg329-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 11329 21629 328238 321554 64 8 13637 28609 467002 500060 64 16 12023 72397 889431 811459 64 32 15496 71816 809014 987600 64 64 22291 117848 1526887 1526887 128 4 14635 26728 499970 425141 128 8 19820 40026 942199 613002 128 16 23646 69159 953918 864797 128 32 31784 88771 1152564 1123617 128 64 21347 119842 1346196 1939522 128 128 30253 134594 1778862 1727352 256 4 17212 23117 375985 353576 256 8 25465 35368 654798 535583 256 16 39721 51282 833776 581719 256 32 42028 104451 1471270 1158540 256 64 47574 130803 1790149 1897721 256 128 52598 143245 748353 1652404 256 256 51749 160720 1938842 1579483 512 4 22140 24641 413948 371549 512 8 27041 42945 604447 563820 512 16 48229 71062 957072 971797 512 32 62915 107112 1230786 1127995 512 64 75483 147717 1368865 1204552 512 128 65558 166499 1454140 1579257 512 256 68185 180919 1677976 1689859 512 512 86425 162702 1854787 2081286 1024 4 24046 23821 407461 399353 1024 8 38834 43626 508954 592588 1024 16 52993 74804 845664 924084 1024 32 88328 103257 1142945 1067654 1024 64 93405 147487 1213334 1267398 1024 128 101056 159056 1556257 1486247 1024 256 118420 179242 1851434 1805514 1024 512 104353 149687 1622698 1819280 2048 4 23297 26785 325588 335782 2048 8 39608 47267 626279 474298 2048 16 60764 77914 868125 907853 2048 32 78835 105604 1077404 1148723 2048 64 103121 133169 1342008 1403858 2048 128 120954 152107 1574169 1443248 2048 256 117883 164814 1562145 1573015 2048 512 126747 154426 1670281 1719429 4096 4 24857 27222 363089 379961 4096 8 40073 44098 571580 606274 4096 16 60323 74422 839360 693889 4096 32 85675 104682 1232963 1251465 4096 64 104641 126482 1271188 1305678 4096 128 120509 155433 1542067 1576018 4096 256 127276 176871 1603825 1555048 4096 512 131437 167688 1513670 1692630 8192 4 24211 25610 375021 415078 8192 8 39705 45556 596556 611799 8192 16 63065 72571 873897 859857 8192 32 83748 105668 1247457 1059086 8192 64 111976 136079 1219390 1344025 8192 128 128064 155797 1176147 1512591 8192 256 128728 161830 1748159 1371711 8192 512 128485 182437 1388507 1118670 16384 4 24995 26836 394651 390374 16384 8 40860 45028 631416 580583 16384 16 66860 70413 954386 871722 16384 32 93627 109768 1248201 1153731 16384 64 123112 143758 1242064 1399388 16384 128 133940 161380 1558731 1542773 16384 256 132668 163337 1542462 1501316 16384 512 131420 179334 1415209 1686127 32768 4