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: Wed Jul 17 08:09:49 2024 Auto Mode Machine = Linux oleg437-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-oleg437-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 8446 20370 481234 688639 64 8 10718 34023 735831 555990 64 16 11026 47757 488236 640954 64 32 12227 70887 1049372 1105556 64 64 13222 72809 998622 1188789 128 4 13043 20775 452366 604036 128 8 15190 32939 556454 809997 128 16 18771 54235 955616 571865 128 32 23155 69454 538051 1121270 128 64 19860 64676 955616 1172704 128 128 23809 110154 870405 1229084 256 4 13662 18955 653204 531080 256 8 20681 32665 793128 838988 256 16 27447 49893 954602 901693 256 32 31912 71067 1048775 1020855 256 64 34028 100389 1035624 1197295 256 128 36394 117918 1208072 1195962 256 256 38934 125308 1208072 1208072 512 4 15611 20795 561462 572691 512 8 25853 37454 773364 716112 512 16 33856 57795 912733 1003588 512 32 48498 80014 1137555 1053304 512 64 49235 102320 1084694 1025636 512 128 52831 119206 1187895 1219602 512 256 51174 130706 1053304 966113 512 512 52604 136030 1123275 996139 1024 4 17256 22073 493515 514872 1024 8 30103 38086 791289 805688 1024 16 40701 57886 862650 954478 1024 32 52958 81248 1054547 1057663 1024 64 62568 103716 1098792 1114185 1024 128 68408 119501 1135391 1143858 1024 256 73939 131538 1113030 1130014 1024 512 74576 138191 1164956 1136593 2048 4 23985 26810 597984 588158 2048 8 34482 39629 789530 774858 2048 16 44868 58219 948555 960111 2048 32 58281 81366 1054522 1098624 2048 64 71481 103245 1137768 1140942 2048 128 79993 119333 807263 1155678 2048 256 64886 130687 1134613 1131474 2048 512 82487 124030 1105268 1179157 4096 4 29273 32331 559480 596568 4096 8 44190 55369 765870 808395 4096 16 58397 65416 895493 959511 4096 32 67490 84279 944633 745530 4096 64 74491 103012 1054574 1107677 4096 128 88474 100814 1035131 1144500 4096 256 86698 90798 1083301 1150863 4096 512 98035 114733 985321 1049998 8192 4 31340 40868 537460 516254 8192 8 50556 69724 758513 727023 8192 16 49694 72022 939129 1016115 8192 32 85633 112654 905685 949142 8192 64 95518 122389 1046219 1126039 8192 128 115261 138138 1161005 1144607 8192 256 103384 137916 1163324 1227098 8192 512 93730 129895 1012372 995738 16384 4 31277 39859 426323 565705 16384 8 51936 64804 647845 673101 16384 16 76984 73236 700441 805028 16384 32 95842 123324 926602 1065900 16384 64 95600 102830 974830 1049107 16384 128 111474 110823 897897 951677 16384 256 121163 141146 870519 939460 16384 512