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: Tue Feb 25 07:06:40 2025 Auto Mode Machine = Linux oleg101-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-oleg101-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 19201 27397 378715 367817 64 8 26413 48160 581273 496362 64 16 16859 39946 801764 778512 64 32 37713 84658 842003 1070292 64 64 22735 146461 1638743 1255511 128 4 18801 28325 624409 224932 128 8 29829 49651 535903 350711 128 16 31831 72886 814915 1319723 128 32 54192 96458 1294270 1040839 128 64 54170 121800 1373754 1421023 128 128 77539 161231 1642783 1939522 256 4 25700 22934 286958 357103 256 8 34948 51282 654798 903970 256 16 50503 53090 543445 1058076 256 32 62514 102117 1053922 1117543 256 64 68874 141826 1471270 1453348 256 128 53256 168991 1740810 1481420 256 256 65040 151022 1532153 1881098 512 4 21277 21779 389050 276317 512 8 43872 44371 245909 499902 512 16 53696 82248 742096 462440 512 32 78588 106597 760762 1193838 512 64 60542 127357 1383861 1210664 512 128 107876 172671 910797 705294 512 256 86342 142304 1657257 387576 512 512 101349 242084 1968713 2304647 1024 4 15940 27840 412548 308440 1024 8 34911 42007 586759 478291 1024 16 59970 72929 773476 595711 1024 32 87858 112404 835140 1103592 1024 64 78036 132182 1190465 531963 1024 128 126060 166912 1402756 739771 1024 256 127217 202738 1432225 1514549 1024 512 158003 220505 2138070 1314729 2048 4 23823 26450 273070 276864 2048 8 38533 46160 529040 662557 2048 16 62141 82480 1043378 679271 2048 32 74494 99606 861940 1071758 2048 64 123024 130312 1023975 1014422 2048 128 132342 176690 1680082 1537539 2048 256 140187 201670 1447382 1725646 2048 512 142083 194898 1140185 1077945 4096 4 22548 21911 298480 347828 4096 8 37275 40020 453249 594154 4096 16 59737 72572 838827 854728 4096 32 91567 82822 1090798 878010 4096 64 103767 149680 1167919 918817 4096 128 133489 172405 1144728 1404639 4096 256 127625 113130 1557303 1470148 4096 512 147763 192617 1344192 1673830 8192 4 22209 24812 263001 319736 8192 8 36771 45358 565352 567434 8192 16 61863 65660 778041 715711 8192 32 97129 110528 994642 1028001 8192 64 120113 127782 1044502 949352 8192 128 139571 159420 1305470 1352489 8192 256 128750 183990 1341610 1282998 8192 512 140593 178529 1437717 1084902 16384 4 21820 25673 323474 350781 16384 8 40001 45643 524909 529471 16384 16 62401 61236 693878 680479 16384 32 93116 96686 979442 991468 16384 64 86409 140975 1089439 1081722 16384 128 114057 160086 1394249 1264694 16384 256 142348 189132 1464677 1438193 16384 512 137817 175543 1299590 1516323 32768 4 22483 23988 359117 322659 32768 8 36538 42411 569275 598349 32768 16 63259 76378 761553 804716 32768 32 93335 105699 1063515 1079562 32768 64 106378 135173 1045737 1144220 32768 128 146512 162978 1344766 1455831 32768 256 138160 173807 1165252 725421 32768 512 128932 186590 1431792 1469089 65536 4 23410 24858 352567 340783 65536 8 38582 44759 593901 572882 65536 16 64354 67119 817381 845307 65536 32 98131 114755 1139934 1009023 65536 64