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 23:26:56 2025 Auto Mode Machine = Linux oleg332-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-oleg332-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 4209 9006 328238 331481 64 8 9120 41612 733819 614542 64 16 10399 64314 686877 754443 64 32 12680 86235 913649 1255511 64 64 6218 109574 1638743 1518251 128 4 9509 7757 379734 167939 128 8 13482 41080 208185 606767 128 16 16940 62530 659704 841746 128 32 16345 89570 1209698 408949 128 64 8695 117328 1424795 1373754 128 128 24515 49669 1684006 419494 256 4 14146 13915 375459 357579 256 8 16552 41491 547044 550409 256 16 10480 17578 739590 1062263 256 32 37762 58566 1219045 1254656 256 64 21362 43842 1384034 1453348 256 128 12358 153308 1420658 1224606 256 256 15430 116789 1924938 1814348 512 4 7314 11814 128871 134068 512 8 11364 11638 603089 131121 512 16 10616 17746 883081 775599 512 32 61259 100430 1086890 807383 512 64 35447 114772 1467055 1434711 512 128 48859 146748 1488408 1575781 512 256 49492 167539 1829505 1783912 512 512 63146 169764 1630828 2009236 1024 4 10240 10842 266110 313048 1024 8 23707 29485 333542 635556 1024 16 19474 46607 841357 638770 1024 32 55943 85020 1291018 806293 1024 64 53576 102268 1424152 263578 1024 128 42129 157470 1434138 1418039 1024 256 49697 102042 1786736 1635675 1024 512 69707 178267 1872419 1011817 2048 4 14056 15628 299146 254314 2048 8 19279 16142 277508 254412 2048 16 30971 19544 867074 534040 2048 32 22517 34668 900997 487598 2048 64 81730 121068 1342008 1334295 2048 128 69177 110119 933403 1496033 2048 256 58611 113306 1615011 1422220 2048 512 77085 129849 1744572 811074 4096 4 11039 10463 154548 221487 4096 8 18200 29436 215419 298283 4096 16 49646 49246 272905 145791 4096 32 29009 41503 964467 1115517 4096 64 32374 38066 502455 1320025 4096 128 47742 46755 1404754 1476085 4096 256 45006 40198 1650988 574235 4096 512 69889 101290 1828656 1590757 8192 4 10100 13193 186190 286553 8192 8 16085 23289 361518 470321 8192 16 30361 21998 279896 329404 8192 32 47288 40751 267154 922835 8192 64 57940 78810 1242136 1015604 8192 128 63543 79747 1275379 1194506 8192 256 76249 54627 635281 413301 8192 512 59791 91768 995882 1672510 16384 4 13412 9623 134024 178488 16384 8 4471 16314 233340 286297 16384 16 21137 27189 690233 516195 16384 32 52420 57877 979149 727622 16384 64 57684 62617 668439 676527 16384 128 51322 84117 1129923 1152744 16384 256 60884 55483 395203 391839 16384 512 43613 60091 1099831 1302373 32768 4 11084 12605 172328 309610 32768 8 17985 23453 233303 185391 32768 16 27189 27926 674809 826264 32768 32 30521 44139 813383 472480 32768 64 44228 61615 1134782 862996 32768 128 55324 63120 1488791 1271055 32768 256 65205 70217 1160098 1346360 32768 512 67229 92537 1071374 1135260 65536 4 13611 12767 216459 297462 65536 8 21909 23946 435434 337753 65536 16 36704 37953 479215 758721 65536 32 46367 57480 749008 694061 65536 64 65820 62200 579697 683971 65536 128 54577 61966 604887 586321 65536 256