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: Thu May 1 15:42:30 2025 Auto Mode Machine = Linux oleg212-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-oleg212-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 12169 26026 203698 307554 64 8 17255 48298 592827 546928 64 16 15530 72652 566551 581273 64 32 19674 101919 926260 942521 64 64 3997 138883 1780008 1255511 128 4 8798 26988 342216 369795 128 8 25462 34679 603357 291491 128 16 39493 69834 805138 848397 128 32 28362 48030 1123617 1175271 128 64 20040 146134 1220700 1373754 128 128 21440 190528 1663139 1911894 256 4 19236 24657 284073 99376 256 8 9224 50394 583299 378237 256 16 26432 72136 155709 544547 256 32 29371 121618 1300235 1340826 256 64 17848 178013 1540948 1319408 256 128 57906 142788 1422540 1523457 256 256 46605 116422 1325925 1619994 512 4 10993 23060 264866 310877 512 8 22969 28067 125029 181762 512 16 22396 83537 791609 899731 512 32 52985 108355 1143004 411568 512 64 81409 159311 1496706 1179413 512 128 93810 80289 1645826 1580419 512 256 57788 208537 325929 1647088 512 512 87835 167761 1414860 1218910 1024 4 13315 19312 211088 197944 1024 8 27557 37380 568583 246868 1024 16 36608 65440 819837 817340 1024 32 62622 89004 466499 1094034 1024 64 53385 146852 1168760 1279861 1024 128 69348 143238 1515083 1484193 1024 256 72506 139583 1542286 1675884 1024 512 32816 84703 1641301 1201790 2048 4 12600 13557 94683 244924 2048 8 20072 23018 198428 673466 2048 16 39530 52944 513297 880133 2048 32 48491 44101 820213 839040 2048 64 49448 79164 1155678 1288849 2048 128 58958 159079 674100 915107 2048 256 76401 55637 1542232 1703741 2048 512 55502 89974 1764279 1728076 4096 4 14808 11704 154420 140630 4096 8 25814 23624 393466 346586 4096 16 38059 33759 784368 223801 4096 32 59733 67644 387958 606102 4096 64 48326 69611 1185488 1285648 4096 128 60194 171725 1374520 1521041 4096 256 58478 66468 1324298 1710323 4096 512 94639 60474 1658319 1529981 8192 4 11630 13324 241138 182946 8192 8 23147 22381 272493 224210 8192 16 23883 38002 692599 697605 8192 32 55241 71197 659371 1001367 8192 64 61425 43099 689334 886753 8192 128 80935 129007 864487 1263002 8192 256 102546 80907 1611332 867521 8192 512 85885 138230 1511460 1175503 16384 4 16167 4644 226761 161228 16384 8 27146 31117 475436 338967 16384 16 28156 32164 420946 358725 16384 32 45828 53014 944600 552004 16384 64 44423 60584 892961 902152 16384 128 50571 70402 734474 1091308 16384 256 77818 79293 505447 575300 16384 512 60165 135596 784407 477444 32768 4 10705 10421 153595 223829 32768 8 17536 23247 376146 326218 32768 16 34559 35728 652294 626191 32768 32 37104 56524 702844 986457 32768 64 55115 61660 1028366 1008498 32768 128 58728 76653 1024129 962519 32768 256 61529 72958 1170871 1363687 32768 512 81338 94952 1202495 1231456 65536 4 11754 14126 231013 246136 65536 8 22225 20902 290831 379018 65536 16 36997 36184 558838 576231 65536 32 47479 68269 868841 608216 65536 64