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 16:48:22 2025 Auto Mode Machine = Linux oleg345-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-oleg345-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 4901 22550 413101 88423 64 8 8045 31760 546928 516414 64 16 11457 86849 743988 1232453 64 32 8477 89753 1033216 1083249 64 64 10590 50195 1492919 1599680 128 4 9067 22307 330625 277050 128 8 9630 24436 731625 299792 128 16 18374 43084 448961 485063 128 32 21566 81420 139562 1074159 128 64 13591 71872 1266785 144483 128 128 15196 45746 1015251 955616 256 4 9455 20493 113027 298360 256 8 15042 41004 514045 143016 256 16 14561 53409 773697 790209 256 32 33006 53930 992545 215143 256 64 33460 108614 1376935 1422540 256 128 23224 82768 1504249 1362952 256 256 19968 74873 1422540 1639786 512 4 13384 17987 311238 371292 512 8 19035 36474 560144 562049 512 16 37166 34448 802555 325929 512 32 45973 69347 749608 583110 512 64 27141 118653 1221684 1166599 512 128 27164 41727 1580419 1433753 512 256 27176 204059 1280699 1700565 512 512 32247 148575 2024389 1861217 1024 4 14952 17370 253020 311708 1024 8 21437 35197 555637 434457 1024 16 24879 41048 781072 612097 1024 32 47402 45985 401894 337076 1024 64 34610 38346 270042 1206178 1024 128 39555 32176 1331853 1336827 1024 256 37039 72851 1584972 1043783 1024 512 49694 87866 1939207 1750329 2048 4 13578 20217 228621 301044 2048 8 29010 31912 637623 594837 2048 16 44232 57369 502811 811381 2048 32 35164 104515 798112 888509 2048 64 50625 84951 781058 1301149 2048 128 79401 138706 1354493 976594 2048 256 36105 34495 1444219 1635615 2048 512 73557 153433 1779262 1561009 4096 4 17235 20078 264546 372707 4096 8 30081 27354 230460 391699 4096 16 37410 54274 611975 369111 4096 32 61265 61730 1092602 1028623 4096 64 91653 111101 378663 789051 4096 128 54806 71699 1396986 419033 4096 256