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 15:54:18 2025 Auto Mode Machine = Linux oleg238-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-oleg238-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 15795 17831 361867 336889 64 8 15130 35892 863676 495445 64 16 12197 74342 955947 778512 64 32 18464 105608 735831 789967 64 64 15477 137391 1363961 1638743 128 4 6109 9975 137772 330828 128 8 23911 42626 584950 623684 128 16 21272 47705 800337 767171 128 32 26767 107917 1133103 711270 128 64 32712 78137 1440082 1363288 128 128 38299 61274 546819 976473 256 4 21061 18892 325691 316849 256 8 15519 22027 569079 360581 256 16 37123 59939 868157 822913 256 32 38271 115111 1016025 999940 256 64 19253 209518 1266495 1924938 256 128 39012 187265 1461259 354159 256 256 53838 195445 2205688 2000242 512 4 10967 16619 399695 346882 512 8 28367 31888 586454 571929 512 16 40871 85418 409605 458393 512 32 56492 96900 1036027 1245780 512 64 79036 143579 657969 479369 512 128 98767 177100 1484293 1501940 512 256 84420 100374 142181 1747618 512 512 70534 223189 2169601 1854787 1024 4 17282 23529 350100 361322 1024 8 31978 22792 314492 639150 1024 16 42579 73215 800582 211358 1024 32 55444 130178 1174192 958953 1024 64 66047 133041 161770 1296474 1024 128 93055 95541 1302766 1422266 1024 256 60619 190052 1675884 1673273 1024 512 90380 122886 1921852 1872419 2048 4 22423 15537 287714 324616 2048 8 29273 26239 217688 583127 2048 16 32884 65506 921686 751867 2048 32 43250 91551 1031104 1346425 2048 64 66897 64392 1297023 1370922 2048 128 83421 132360 691910 1413328 2048 256 53045 97785 730138 1558461 2048 512 60507 196297 1322178 1751687 4096 4 17676 12711 255615 265560 4096 8 26316 25389 448281 484556 4096 16 24816 34356 867415 809309 4096 32 39768 61482 1080780 998318 4096 64 69492 114911 683373 1437669 4096 128 107385 109421 389806 1506503 4096 256 159289 174171 1632476 1559706 4096 512 93127 180959 1599942 1667818 8192 4 22972 20038 244755 318358 8192 8 35819 34190 454050 540623 8192 16 48747 59437 856278 792122 8192 32 81494 70708 987723 981431 8192 64 83720 111970 1064599 1340982 8192 128 66703 105746 902190 1258192 8192 256 136850 161259 1612617 1596879 8192 512 133341 139388 1764770 986277 16384 4