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 15:53:41 2025 Auto Mode Machine = Linux oleg455-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-oleg455-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 1640 15935 363829 378715 64 8 6577 38321 627470 571375 64 16 11038 60996 983980 829001 64 32 12018 81005 1183548 1070292 64 64 8138 102385 1526887 103371 128 4 11670 12200 347758 325809 128 8 7265 39886 353482 650117 128 16 22284 24019 753179 852438 128 32 27119 92280 1065630 207783 128 64 6814 72026 1526043 1436229 128 128 17199 129559 1359835 1911894 256 4 12490 13547 194666 365740 256 8 12386 34483 596587 654399 256 16 33543 64567 828628 1076103 256 32 29592 92247 651619 996229 256 64 37503 92925 1266495 1361224 256 128 26305 106576 1707589 1639786 256 256 30996 53838 2081678 1180188 512 4 21344 20113 230026 317027 512 8 25365 42870 519870 553502 512 16 29741 34915 820337 832420 512 32 42443 65016 1075459 981121 512 64 32862 49622 275891 1380303 512 128 34872 133534 1458090 1528669 512 256 28044 96222 1789859 1776533 512 512 47778 111068 1889050 1904125 1024 4 19936 17165 348170 383109 1024 8 21530 37384 299848 398612 1024 16 42333 68572 396587 817807 1024 32 43356 90523 1281771 1351126 1024 64 52553 108107 230110 1227903 1024 128 74684 109445 1068717 1101046 1024 256 45677 99950 494196 1535668 1024 512 56829 141106 1838751 1845071 2048 4 16219 13697 122943 332790 2048 8 24924 16348 525931 442921 2048 16 49071 60261 874845 877078 2048 32 58702 77056 754840 840353 2048 64 58801 89628 1307885 1098063 2048 128 60357 131054 1506793 776961 2048 256 89706 76952 1245675 1705094 2048 512 82773 131848 1580250 1535066 4096 4 14470 17055 273962 289141 4096 8 33125 20310 529608 529200 4096 16 44606 37383 658843 345332 4096 32 51221 69753 1109681 929404 4096 64 69841 43632 724833 1020436 4096 128 78420 92379 449466 376885 4096 256