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 15:54:33 2025 Auto Mode Machine = Linux oleg353-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-oleg353-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 7329 21340 292156 333126 64 8 7662 32700 457452 438759 64 16 9482 45848 752329 801764 64 32 13473 61359 463774 1049372 64 64 8481 71510 1828508 1330167 128 4 8781 9194 198708 259131 128 8 10109 18119 606082 677178 128 16 20353 62110 789741 241963 128 32 21585 54235 1076312 1059322 128 64 22152 115834 1406136 1336145 128 128 18952 137913 2409592 396271 256 4 11432 19552 405827 337781 256 8 18517 40239 549283 506050 256 16 25449 47771 755195 861885 256 32 33049 76718 894929 1094754 256 64 21165 66012 1312954 1224606 256 128 27353 137857 1561112 1662639 256 256 23811 68746 1143731 1911233 512 4 13837 10961 280540 306223 512 8 20470 22145 577932 472721 512 16 25622 61716 665926 846197 512 32 38194 88982 540137 248183 512 64 34167 124478 600895 1286838 512 128 26673 83795 1533034 1372364 512 256 35739 59306 1797349 1562027 512 512 28498 98654 1493584 2016784 1024 4 16436 18303 277797 366909 1024 8 18043 36046 594722 592180 1024 16 17068 49803 789399 205867 1024 32 40166 48365 1005892 914249 1024 64 42291 109317 1037480 518978 1024 128 82183 82740 1292961 1060013 1024 256 86860 142975 1383774 1503415 1024 512 35420 57421 1800216 1796451 2048 4 10739 18254 331021 152496 2048 8 15493 25955 226923 375913 2048 16 34068 54294 764446 343682 2048 32 32567 48161 764174 940352 2048 64 51963 85301 1219848 1080793 2048 128 48728 140696 1005399 1437211 2048 256 87045 104490 1516904 1527152 2048 512 56209 102569 1683044 483591 4096 4 15004 17737 229635 350203 4096 8 24891 17166 268113 530704 4096 16 41421 36992 696110 335054 4096 32 40888 67166 833011 500071 4096 64 58606 62719 1145415 1109466 4096 128 77031 103935 1532985 1147328 4096 256 96694 117502 635213 1034570 4096 512 81761 136670 734690 1553922 8192 4 16200 19026 359992 253183 8192 8 30183 31121 427334 330751 8192 16 38290 40957 565398 787078 8192 32 50292 60680 745608 827550 8192 64 62232 71922 1066383 777742 8192 128 59725 71820 934734 607719 8192 256 33320 122039 1099905 1200432 8192 512 82577 69642 1544479 938257 16384 4 11131 13753 161633 172772 16384 8