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 Jan 13 11:32:36 2025 Auto Mode Machine = Linux oleg460-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-oleg460-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 21427 25548 503814 285628 64 8 27913 52770 842003 511494 64 16 36056 83447 681644 1183548 64 32 45360 155722 969761 1484662 64 64 37512 165823 1780008 1933893 128 4 21028 27158 404939 281260 128 8 35456 55872 513847 761728 128 16 52609 75745 633247 1142750 128 32 66290 144327 913347 1663139 128 64 78768 129030 1391557 1885042 128 128 74816 211549 1997245 1663139 256 4 26814 32858 386126 379306 256 8 33350 68448 592636 833776 256 16 63728 89479 1112909 1298662 256 32 90110 102311 934659 1407621 256 64 103315 180892 1415041 1514860 256 128 121673 178516 1881098 1598292 256 256 119400 245213 1952947 2285501 512 4 28275 33802 481195 291389 512 8 47787 59918 713970 866338 512 16 72032 64167 1115688 949875 512 32 97804 123200 1333173 1026126 512 64 98595 184637 1333173 1336492 512 128 132292 183973 1422357 1500891 512 256 123285 229387 1354190 1451192 512 512 141516 245348 1783912 1889050 1024 4 24060 28664 367160 355814 1024 8 44780 57274 535812 513027 1024 16 66810 94885 917570 919140 1024 32 125705 133161 1155864 1497127 1024 64 139452 187891 1389594 1486247 1024 128 142975 235886 1477555 1324460 1024 256 179744 273359 1643185 1544504 1024 512 176248 280097 1709912 2120127 2048 4 27958 33748 445609 383585 2048 8 52649 54942 713105 632319 2048 16 93966 88978 909873 945527 2048 32 116814 126544 1039590 1135813 2048 64 130064 193900 1538641 1158327 2048 128 177993 225476 1685687 1461667 2048 256 192790 207577 1770096 1806199 2048 512 207082 301445 1887563 1762469 4096 4 29810 36999 376299 322700 4096 8 48037 51469 582490 475398 4096 16 75691 88705 1103763 959511 4096 32 108257 142881 1052636 1057300 4096 64 118900 158895 1398351 1249462 4096 128 149184 156067 1413305 1436227 4096 256 182206 199599 1425619 1592526 4096 512 200243 235660 1735549 1669114 8192 4 31805 32016 476333 446138 8192 8 48367 59146 688975 685456 8192 16 71242 82382 1177679 939668 8192 32 138191 141690 1481865 1388732 8192 64 151216 220558 1464434 708772 8192 128 141406 201982 1508143 1661993 8192 256 207051 219801 1748515 1872893 8192 512 196239 241667 1678639 1675283 16384 4 31628 34275 453274 465904 16384 8 51571 54549 780558 700920 16384 16 78562 99306 880908 952006 16384 32 123505 129571 1262835 1262441 16384 64 150401 171416 1274522 1437471 16384 128 163309 223221 1685424 1596426 16384 256 201203 238146 1613557 1635445 16384 512 201882 282176 1840036 1832235 32768 4 29740 32926 495215 516781 32768 8 47627 53053 694782 721874 32768 16 74227 92918 997591 724874 32768 32