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: Fri May 23 17:51:32 2025 Auto Mode Machine = Linux oleg226-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-oleg226-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 8680 20991 598110 710511 64 8 10767 35419 799377 799377 64 16 12158 54706 983980 647135 64 32 13225 75386 1105556 1070292 64 64 14286 107554 1087638 1163036 128 4 12145 21665 627328 537512 128 8 16505 35653 826202 711270 128 16 19604 56591 983630 753179 128 32 24951 79704 841746 831319 128 64 21828 101664 1175271 1142750 128 128 23046 122021 1152564 1206978 256 4 14611 21857 591005 582983 256 8 21656 36681 848267 762164 256 16 27798 58365 1007446 792543 256 32 32521 83031 1112909 864661 256 64 36660 105229 1185399 1153561 256 128 37541 124566 1201314 1202660 256 256 39610 136161 1180188 1201314 512 4 17348 21870 585016 599553 512 8 27756 37755 861818 857687 512 16 35927 59868 1007827 1015932 512 32 47140 84727 1137555 1040545 512 64 52085 107316 1199171 1100818 512 128 66313 126294 1201856 1190529 512 256 58621 138005 1132755 1105920 512 512 59785 147676 1218910 1218910 1024 4 19574 22940 622927 623651 1024 8 30345 37944 817185 814087 1024 16 42820 60620 946485 932714 1024 32 54970 85455 1056623 1074599 1024 64 66140 109051 1104727 1113030 1024 128 72675 127127 1119120 1131503 1024 256 74668 141180 1103592 1107005 1024 512 78697 147980 1159609 1130014 2048 4 25231 27800 617634 620803 2048 8 34077 40244 798483 818571 2048 16 46925 59853 972503 978039 2048 32 62866 86234 1073499 1081882 2048 64 73692 109232 1127760 1111130 2048 128 82894 127332 1120990 1144743 2048 256 88374 140630 1130283 1149338 2048 512 88665 148309 1151804 1147956 4096 4 31339 34861 590032 617696 4096 8 43841 49916 786775 826797 4096 16 57452 67288 935121 973815 4096 32 68710 85145 1029671 1083848 4096 64 79186 107141 1101075 1146715 4096 128 88985 126178 1113637 1140321 4096 256 98844 139452 1100440 1154110 4096 512 96601 142020 1096087 1145415 8192 4 34756 34744 577107 612169 8192 8 55141 60118 1094300 1122654 8192 16 56766 92670 1191771 1230217 8192 32 91140 100923 1001834 1082169 8192 64 103638 106424 1053501 1138727 8192 128 114225 137991 1040894 1142058 8192 256 118273 148148 1047431 1137633 8192 512 120322 146450 1073379 1158188 16384 4 35497 42373 839303 928844 16384 8 59147 59839 756099 796878 16384 16 86098 86649 896093 947818 16384 32 127598 108414 994726 1056218 16384 64 103699 129143 1043689 1128142 16384 128 143146 129069 1048243 1128921 16384 256 101880 139740 1045023 1109276 16384 512 126784 146621 1057437 1123421 32768 4 39862 45032 615419 738419 32768 8