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: Wed Apr 30 22:17:46 2025 Auto Mode Machine = Linux oleg108-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-oleg108-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 3967 9374 404998 304761 64 8 5711 28020 159991 627470 64 16 5986 42274 710511 769584 64 32 7754 78724 901377 780776 64 64 5756 146063 1083249 1357066 128 4 4383 7876 328199 233645 128 8 8520 12786 277624 268327 128 16 5187 28693 691126 730629 128 32 9838 35330 1162547 1048974 128 64 17825 101357 1332828 1281909 128 128 22428 114402 1642783 445978 256 4 7639 13556 199217 136161 256 8 11711 23275 533190 615393 256 16 19979 41451 882426 242226 256 32 23272 12826 295324 556687 256 64 26424 63333 1052888 1202660 256 128 22182 114133 418971 432297 256 256 9167 69096 1652404 1332507 512 4 10606 10939 243456 260939 512 8 12493 25169 336817 352404 512 16 25937 38067 754083 276033 512 32 23383 28743 655558 356558 512 64 33164 66278 805264 808904 512 128 25673 124457 896725 1677976 512 256 41171 127584 1723770 1528669 512 512 50582 64621 279154 1910902 1024 4 11586 14605 245331 283499 1024 8 15994 24279 386244 374132 1024 16 28508 34266 224563 718605 1024 32 29105 48819 701814 849848 1024 64 23445 79225 836604 877454 1024 128 42107 55166 226303 867003 1024 256 43144 63112 835953 1458984 1024 512 44430 107506 1602715 1256277 2048 4 11930 14963 187717 160590 2048 8 12913 27307 277355 433620 2048 16 20956 47339 212071 243895 2048 32 37480 61042 843903 823200 2048 64 28734 88634 1148109 741226 2048 128 53970 83306 1100454 595869 2048 256 41407 89346 1251847 1185177 2048 512 71217 64011 1570427 1409386 4096 4 10054 11607 188566 197046 4096 8 22587 20785 343015 228252 4096 16 26724 30263 313605 331045 4096 32 35368 37717 727534 680180 4096 64 31320 50046 539809 987927 4096 128 27327 66222 533407 791049 4096 256 47821 73004 1240799 1169668 4096 512 63843 63190 350539 1144805 8192 4 11149 8879 198767 179444 8192 8 20359 13476 216541 233422 8192 16 20768 27544 377008 404104 8192 32 32579 39527 405100 583725 8192 64 52540 79198 600014 242323 8192 128 42314 68598 650619 844971 8192 256 57653 57346 1197128 1110319 8192 512 54655 56478 1049446 837290 16384 4 11132 3581 173461 261057 16384 8 20133 16433 340261 300199 16384 16 29664 29808 769381 436419 16384 32 27976 57512 529573 560751 16384 64 33339 54006 330676 708836 16384 128 38655 41212 434980 455214 16384 256 47314 67384 1027461 1260681 16384 512 56608 62329 647919 609275 32768 4 9810 10982 195888 169049 32768 8 19791 17838 264000 286268 32768 16 22142 25229 305127 249246 32768 32 36572 34967 542129 338044 32768 64 30101 57975 337459 553168 32768 128 57442 50992 530406 515623 32768 256 50035 77307 763075 710521 32768 512 50492 57444 649424 502831 65536 4 12512 12381 139936 169699 65536 8 18101 19659 297938 256444 65536 16