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 24 23:44:15 2024 Auto Mode Machine = Linux oleg451-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-oleg451-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 16944 35475 610350 608965 64 8 17694 37581 450541 571375 64 16 26284 64577 627470 718114 64 32 24501 86849 926260 1648808 64 64 26981 117026 1679761 1310683 128 4 22072 23425 495814 381082 128 8 26445 54077 743788 581781 128 16 31471 65842 744820 927549 128 32 37005 93437 1133103 1114289 128 64 34923 134324 1451764 1306873 128 128 42467 190798 2248149 1727352 256 4 24185 34092 431775 373240 256 8 33041 41565 613985 873809 256 16 50175 71232 951219 1347557 256 32 62500 111838 1147398 1180188 256 64 70253 175942 2061693 2081678 256 128 83717 191746 1981783 2242541 256 256 80679 178013 1660068 2015259 512 4 25557 32116 420020 492790 512 8 43585 57683 930933 572691 512 16 64843 107860 1084694 898225 512 32 84925 139730 1096322 1207940 512 64 86411 153240 1635797 1414860 512 128 97189 204311 1869318 1647088 512 256 115289 277065 2107844 1677976 512 512 96638 235191 1910902 2327124 1024 4 29280 32780 354932 434106 1024 8 42646 43190 868581 845664 1024 16 67345 68601 1241031 908448 1024 32 109717 146411 1186518 1254808 1024 64 112466 133613 1299612 1541732 1024 128 127474 156625 1789714 2086145 1024 256 148277 214086 2146618 1723636 1024 512 114566 200467 1812371 1928757 2048 4 26869 28705 471564 500001 2048 8 50599 55829 990330 743086 2048 16 63531 83875 1071090 877795 2048 32 83042 113273 1492913 1459928 2048 64 108601 153167 1333259 1353639 2048 128 156776 213134 1793378 1671907 2048 256 145651 236703 1926942 1833573 2048 512 140650 170666 2064488 1967548 4096 4 26594 27599 420922 369278 4096 8 38186 48434 755331 687337 4096 16 67309 93884 916318 985773 4096 32 99606 100789 1348730 1042986 4096 64 119437 141476 1325218 1467010 4096 128 135337 183866 1600538 1627373 4096 256 138678 182940 1801239 1823028 4096 512 129300 174417 1742944 1787929 8192 4 26711 27298 423578 477524 8192 8 44677 47575 741089 686332 8192 16 65594 73690 942245 843663 8192 32 83947 99372 1139822 1095591 8192 64 106761 133574 1331370 1485389 8192 128 118319 163435 1480269 1377264 8192 256 124358 177001 1794166 1625434 8192 512 135186 181922 1762416 1779301 16384 4 27275 26316 369499 362565 16384 8 43184 44205 649051 662811 16384 16 65572 73855 842451 976644 16384 32 88966 108101 1425928 1210664 16384 64 106700 140391 1221401 1525919 16384 128 126375 164405 1616251 1586219 16384 256 145826 166033 1799278 1794110 16384 512 133347 202832 1880211 2044930 32768 4