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 15:39:24 2025 Auto Mode Machine = Linux oleg122-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-oleg122-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 8338 7857 367817 41077 64 8 15296 33664 378715 566551 64 16 12766 54045 674790 809014 64 32 13353 101418 681644 1045286 64 64 11956 92347 1204796 328238 128 4 13060 19341 253383 359638 128 8 22303 32626 571865 293563 128 16 20532 56963 785122 870405 128 32 12779 97350 1175271 927549 128 64 20022 28590 1206978 1346196 128 128 25197 185012 1778862 1487977 256 4 13825 13528 118190 246169 256 8 27571 52447 505812 387939 256 16 31515 58687 826078 764334 256 32 26596 85023 1118707 999940 256 64 58273 119347 1340826 1354356 256 128 63826 130216 1639786 1361224 256 256 40867 179531 1479379 2000242 512 4 11692 16173 211412 141432 512 8 30559 36813 192395 412279 512 16 25555 64169 251585 586454 512 32 51042 80160 562049 664073 512 64 87282 48291 1176828 710192 512 128 72922 122602 1570020 888930 512 256 84714 157534 1791352 1711407 512 512 67932 103559 127395 101690 1024 4 10077 9803 100039 114719 1024 8 11183 19556 512782 409091 1024 16 49487 54625 594639 631723 1024 32 30093 33588 657244 880512 1024 64 51118 79781 600291 1281771 1024 128 53554 100011 903099 1464956 1024 256 61978 44208 1515083 1496605 1024 512 42555 163264 680357 655139 2048 4 12481 15338 193664 224909 2048 8 15048 16846 345882 460023 2048 16 29807 54569 400317 455825 2048 32 33103 38415 499159 528097 2048 64 42688 73908 973826 941176 2048 128 58497 110356 1446407 1791882 2048 256 95513 99527 1035954 1501525 2048 512 61735 139862 1665101 1229979 4096 4 12785 11608 328708 112669 4096 8 16314 14669 288413 351745 4096 16 28714 49794 525928 595782 4096 32 45008 60157 766315 900044 4096 64 41163 81471 787243 830153 4096 128 54646 64543 1061678 1349578 4096 256 56527 99061 667625 638115 4096 512 65545 114853 601035 1039892 8192 4 13473 15452 222644 288805 8192 8 20659 35012 211657 239496 8192 16 32032 42373 324100 404723 8192 32 38955 66062 805096 607676 8192 64 46849 64938 964002 433529 8192 128 47560 3636 1046092 1175825 8192 256 53510 64400 309330 455410 8192 512 71040 70814 790354 646822 16384 4 12222 11082 240576 219665 16384 8 18262 19601 384953 354310 16384 16 23371 38713 612670 254284 16384 32 48502 51424 552434 781499 16384 64 60977 62942 519913 708741 16384 128 61337 75170 352117 452760 16384 256 70907 105881 719321 389094 16384 512 60730 110605 741216 813307 32768 4 11423 12358 249328 149816 32768 8 17877 22116 382647 280557 32768 16 32284 30768 496085 595727 32768 32 36914 43489 588843 588884 32768 64 43375 54397 679752 486287 32768 128 64377 66303 606008 540388 32768 256 58671 78894 481627 558295 32768 512 60108 63804 925965 933163 65536 4 9892 13568 95848 260497 65536 8