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: Thu May 1 16:06:42 2025 Auto Mode Machine = Linux oleg241-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-oleg241-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 9575 10943 345563 350069 64 8 13013 35049 484710 525513 64 16 10330 59814 852702 863676 64 32 14164 69708 1183548 1232453 64 64 11226 98914 189331 1599680 128 4 11638 23573 115635 352553 128 8 5587 15035 546819 576780 128 16 17957 52853 1032829 277050 128 32 22163 64351 919605 462100 128 64 22779 119735 1377278 1455701 128 128 18965 143020 1521718 1642783 256 4 13660 18099 375328 360460 256 8 20618 25137 201271 633922 256 16 29395 27371 1319408 739590 256 32 25311 34105 1122215 1003679 256 64 38438 105914 1267990 1413179 256 128 26413 98882 1572543 1570244 256 256 38141 145379 2305128 1881098 512 4 20056 21480 195727 401563 512 8 27685 31513 581216 628874 512 16 31832 48687 687237 784094 512 32 41714 77445 1118011 1182010 512 64 48301 106708 1329871 1520013 512 128 45217 132816 1594501 1734911 512 256 72020 152652 1736314 1662389 512 512 46305 161820 1410215 2141475 1024 4 18111 25162 337500 279096 1024 8 23354 30753 528104 595381 1024 16 31833 58958 710639 516668 1024 32 28861 76624 1164956 474749 1024 64 65725 84824 916004 1124099 1024 128 67670 30990 1410125 1056883 1024 256 62370 184105 1662264 614285 1024 512 79288 155054 1954207 1838751 2048 4 17378 23564 347351 344730 2048 8 29029 42018 570956 236840 2048 16 47075 71907 784411 765059 2048 32 67830 78558 605188 903746 2048 64 66460 110171 831487 900997 2048 128 127371 156144 925858 1317716 2048 256 76949 128191 1196902 838303 2048 512 102471 138051 1516904 754045 4096 4 20041 16214 287011 249755 4096 8 38524 37036 545101 488664 4096 16 49021 55107 698374 779598 4096 32 60561 74974 624114 800485 4096 64 58185 95217 981325 1258708 4096 128 76147 101340 354291 1292515 4096 256 87225 123336 1227150 939879 4096 512 77774 114833 1584594 1856719 8192 4 18720 24683 383771 315917 8192 8 30677 39648 503256 504120 8192 16 42035 49005 635434 770642 8192 32 63350 60659 1042379 982723 8192 64 60172 84151 1149277 1090965 8192 128 64383 112444 1049318 1064863 8192 256 85920 116750 1497364 1488865 8192 512 87943 138753 1497886 1624435 16384 4 18294 20290 366844 357666 16384 8 30354 33339 502269 570869 16384 16 45989 51608 784157 849397 16384 32 48399 65170 439543 904503 16384 64 64921 58614 541939 791500 16384 128 60884 96366 1038861 1118047 16384 256 73901 90133 784712 1203560 16384 512