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 15:47:48 2025 Auto Mode Machine = Linux oleg408-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-oleg408-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 12573 7325 359444 359444 64 8 18212 48817 537079 405610 64 16 7797 67585 901377 877797 64 32 23925 69945 1210227 1183548 64 64 28661 128204 1484662 1392258 128 4 15345 25984 345965 387966 128 8 31228 43171 617941 633247 128 16 16608 76972 522855 201921 128 32 29329 30629 1121270 1183041 128 64 17389 143979 1436229 1421023 128 128 22459 177313 1827299 2027414 256 4 4984 16699 324020 131283 256 8 22513 40462 600928 602276 256 16 22174 81997 171914 470566 256 32 28883 122548 1040643 1153561 256 64 13725 147902 1369908 1384034 256 128 24053 43744 785584 1224606 256 256 27904 179381 1790149 1707589 512 4 8335 17815 313510 333988 512 8 29183 31471 493696 497010 512 16 27316 38302 654759 867738 512 32 41680 105897 1329871 1007827 512 64 63256 157975 1380303 1267097 512 128 76009 192189 1547395 1261144 512 256 73807 179904 575300 1610042 512 512 71468 36441 1801873 2196227 1024 4 9540 17303 136678 96196 1024 8 24442 19333 556501 111076 1024 16 27758 43624 605880 851195 1024 32 34172 55959 698050 709114 1024 64 72520 111523 1275301 1369216 1024 128 106156 122252 1442326 1438461 1024 256 117916 151232 1620249 1617808 1024 512 31964 185609 1878973 1868347 2048 4 16715 14934 207017 249180 2048 8 27666 22669 218147 418474 2048 16 33662 22530 859439 844900 2048 32 41363 46519 416606 1011794 2048 64 62107 69016 1337619 1309480 2048 128 40568 125130 1557330 1072293 2048 256 118162 149674 1695335 1637174 2048 512 50360 69730 1828888 1823840 4096 4 13713 9563 246986 110136 4096 8 18212 23674 607173 301730 4096 16 27020 46511 512330 713840 4096 32 52870 41739 933241 1164910 4096 64 101784 78738 1186962 1163017 4096 128 56540 165342 1590757 1515941 4096 256 62475 124381 1494316 1693965 4096 512 83687 73055 1237492 503944 8192 4 12498 15881 181720 207565 8192 8 23088 19394 571188 434472 8192 16 32970 47888 839705 481317 8192 32 44886 52277 379964 964570 8192 64 34501 44987 1042379 939257 8192 128 54336 78083 688174 1251273 8192 256 48848 3095 1025271 1086308 8192 512 48016 77393 1149277 974888 16384 4 12372 15608 292493 343580 16384 8 21473 31468 285515 528770 16384 16 35408 47307 456023 603884 16384 32 65534 57471 927741 432111 16384 64 45878 90739 1285321 386049 16384 128 58225 107238 1228102 733650 16384 256 78265 158524 1578422 1524362 16384 512 63306 91374 998716 1402987 32768 4 14843 14071 262173 201046 32768 8 23643 17883 559161 240898 32768 16 32708 43732 710294 453749 32768 32 46387 52783 1084067 975735 32768 64 81586 83498 530167 356425 32768 128 76846 96155 1235786 522315 32768 256 81727 102428 986605 605445 32768 512 62565 105135 894815 678791 65536 4 12308 13642 208664 266452 65536 8 20245 21351 338995 307864 65536 16 42336 41078 525839 617169 65536 32 57866 52723 352143 799131 65536 64