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 16 08:51:48 2025 Auto Mode Machine = Linux oleg140-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-oleg140-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 12984 29437 552557 769584 64 8 16824 32852 1002351 863676 64 16 23046 75111 1204796 639427 64 32 7837 62011 1330167 1330167 64 64 22090 125272 1492919 1722886 128 4 17384 27574 359638 640042 128 8 28641 46040 948860 914904 128 16 26533 79256 1231904 1598754 128 32 51633 99148 1406136 1663139 128 64 46076 155533 1603529 1409828 128 128 49979 152745 481150 2660335 256 4 23607 29131 729540 557554 256 8 29157 46300 709299 472222 256 16 35082 83146 1248819 1142514 256 32 73580 116460 1292410 1243036 256 64 52912 183113 1195962 1142514 256 128 78405 102272 1660068 1407621 256 256 78531 190453 2152625 1581810 512 4 23317 27137 741072 755144 512 8 31362 50048 937845 1011625 512 16 58136 60526 1254513 1312798 512 32 67752 108317 1289156 944860 512 64 59109 66448 1438555 1429934 512 128 91624 175881 1361920 1270846 512 256 90749 115370 1674052 1827947 512 512 57035 220598 2081286 1931527 1024 4 22280 26358 821719 585160 1024 8 36731 52925 978841 1002839 1024 16 52607 80149 552350 834653 1024 32 83258 51500 1242826 1241031 1024 64 98735 146157 1470977 1291406 1024 128 89879 170836 1594978 361200 1024 256 105037 193678 1878973 1024121 1024 512 133264 216996 1294520 1442326 2048 4 23191 29623 626325 728034 2048 8 41023 48404 875915 687755 2048 16 62633 93392 1093450 984090 2048 32 88997 87322 1275264 592090 2048 64 91010 127975 783195 1092199 2048 128 126952 170737 934317 1308682 2048 256 102738 137375 1693997 1530689 2048 512 129252 154254 1363523 1449336 4096 4 22972 25389 758097 533755 4096 8 32532 48308 981549 1042227 4096 16 58185 73673 1094063 677685 4096 32 84441 76519 1139414 1287189 4096 64 99186 99157 1358113 1367627 4096 128 88891 147608 1296123 1519292 4096 256 107087 146244 1262965 1189263 4096 512 130119 166174 1464883 1595632 8192 4 25652 28877 778853 577592 8192 8 48473 51968 920141 1090965 8192 16 68675 90346 1118961 1128368 8192 32 93685 103208 1229469 953885 8192 64 96703 109111 1413120 1198380 8192 128 147944 139345 1178365 1258561 8192 256 137104 170429 1517602 1326640 8192 512 135261 200883 1631841 1249726 16384 4 26041 29139 552172 759996 16384 8 43480 43123 701635 1073443 16384 16 72377 80402 1159200 1150409 16384 32 89994 86809 1032648 1283209 16384 64 97484 108032 1264974 1278007 16384 128 130407 134308 1476701 1243368 16384 256 109363 172969 1233370 1113410 16384 512 138240 161566 1545688 1231315 32768 4 22326 24888 581747 501530 32768 8 39472 45838 993480 755545 32768 16 58656 65954 968754 1024762 32768 32 88888 107467 1328415 1346875 32768 64 133325 130571 913653 1373224 32768 128 113711 139657 1065031 1230993 32768 256 125997 155868 1621071 1354601 32768 512 137936 187981 1464893 1455708 65536 4