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 Feb 14 06:49:03 2025 Auto Mode Machine = Linux oleg314-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-oleg314-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 4206 14908 196828 297664 64 8 10050 39211 195823 866463 64 16 11406 65315 771797 1304314 64 32 13487 33317 863676 818885 64 64 6599 119847 1083249 1638743 128 4 16054 20708 381082 330015 128 8 16888 28194 590094 561694 128 16 17059 60898 809997 1229084 128 32 23585 85505 947186 620799 128 64 28489 68751 1319723 1291158 128 128 27245 131689 1539168 1802755 256 4 14830 23564 336405 369897 256 8 28366 42511 545931 539079 256 16 37852 74072 773697 753077 256 32 56776 100709 1168627 1089202 256 64 47381 150768 1274008 1280084 256 128 48716 103685 1393012 1600674 256 256 51038 148577 450620 1790149 512 4 18860 24604 250236 335292 512 8 30168 40356 508544 517614 512 16 41407 76325 857687 895230 512 32 59583 94724 764281 964378 512 64 65380 117132 628322 1346548 512 128 74527 135695 1575781 1624659 512 256 73071 156569 1299295 1707325 512 512 65440 126636 2022482 2695115 1024 4 22014 23211 310581 326221 1024 8 33717 41387 595711 423157 1024 16 49858 48247 812701 802526 1024 32 68582 73945 761815 1482144 1024 64 60660 124832 1214706 1284839 1024 128 82941 107471 1363565 1551758 1024 256 75717 145726 1638796 1607514 1024 512 85992 112812 2198257 2068064 2048 4 21570 22429 283582 371958 2048 8 34907 41857 426218 582139 2048 16 51789 63806 723131 913453 2048 32 79419 113520 1082427 1108835 2048 64 83421 90144 1323808 1058942 2048 128 97663 146057 767314 1373553 2048 256 87704 153157 1603854 1484143 2048 512 99243 158022 1580250 1277730 4096 4 23009 23955 346649 357074 4096 8 38760 43800 529265 883519 4096 16 63398 73062 882203 648399 4096 32 82525 108887 1039326 1135873 4096 64 82186 109252 1279996 1259908 4096 128 109562 150887 1340312 1297396 4096 256 130699 162347 1498749 1625987 4096 512 128959 175658 1246109 1598007 8192 4 23458 24756 347739 416917 8192 8 38952 43111 578370 663920 8192 16 60323 64893 778253 795496 8192 32 86663 109959 1291923 1061016 8192 64 100318 122788 1313003 1483785 8192 128 115724 134018 1579336 1006619 8192 256 114943 164220 1720584 1316828 8192 512 123632 154207 1552084 1684895 16384 4 22834 24738 378034 322849 16384 8 38310 42798 574876 510247 16384 16 57519 67524 852220 1007885 16384 32 88441 100132 1206201 1249813 16384 64 92506 123441 1355846 1339644 16384 128 121011 147686 1474166 1626696 16384 256 128532 158795 1630092 1591140 16384 512 109870 107951 1767439 1458956 32768 4 22320 22571 358641 379343 32768 8 39140 38835 595802 626731 32768 16 58641 67799 1003710 924575 32768 32 90068 89851 743086 794877 32768 64 97782 112898 1440225 1398189 32768 128 110332 134350 1514799 1703912 32768 256 130469 134916 1466581 1642262 32768 512 132589 148971 1393666 1243377 65536 4 20850 23733 390608 335318 65536 8