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: Fri Feb 14 06:49:01 2025 Auto Mode Machine = Linux oleg234-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-oleg234-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 13660 26654 363829 357529 64 8 18003 57348 566551 525513 64 16 24681 76919 874936 969761 64 32 16223 110158 1279447 831569 64 64 23452 134499 1734015 1879725 128 4 19981 29249 339403 320940 128 8 33402 30570 428193 513847 128 16 44569 40224 914904 1254941 128 32 45895 115734 1684006 1152564 128 64 49196 142074 1406136 1406136 128 128 45730 98313 1755594 2066432 256 4 23140 30418 630572 316382 256 8 36250 49247 544823 627623 256 16 53930 63381 882426 673696 256 32 77949 119293 1354356 1178892 256 64 93362 154122 1361224 1347557 256 128 77082 179261 1384034 1619994 256 256 84654 227352 1911233 2486631 512 4 24761 29457 422499 339963 512 8 26447 49661 561462 637650 512 16 52642 73071 920558 895230 512 32 60564 108635 1103647 1406520 512 64 92449 137186 1368865 1261144 512 128 127079 198918 958781 1635797 512 256 106819 180524 1815584 1695195 512 512 87656 246135 2205248 2124526 1024 4 25482 24297 389785 384240 1024 8 38003 49757 608800 587482 1024 16 65780 79068 835953 755782 1024 32 105754 132296 1082454 997946 1024 64 108783 122752 1304348 1279861 1024 128 125353 187448 1653942 1486247 1024 256 130610 246925 1715375 1709231 1024 512 106657 238757 1917562 1899750 2048 4 24903 29347 409750 370610 2048 8 45404 36728 619504 317278 2048 16 71928 62694 891182 798112 2048 32 96863 108125 826209 869267 2048 64 81163 182695 1102856 1055688 2048 128 134746 201514 1536439 1128946 2048 256 101890 197357 1122895 1322992 2048 512 153661 190727 2087567 1856558 4096 4 26980 28545 402595 366372 4096 8 42172 43715 604758 636131 4096 16 55694 75938 455158 803443 4096 32 84102 89332 1073687 1167284 4096 64 121489 144976 1269310 968108 4096 128 121952 139377 1280378 974312 4096 256 110801 201099 1702527 1659601 4096 512 147502 191598 1764063 1497573 8192 4 25957 25386 387970 352011 8192 8 38058 45253 600371 613678 8192 16 54934 66882 757960 615018 8192 32 76136 99714 1088476 788595 8192 64 84501 92381 769486 1101527 8192 128 108302 95361 1153948 1399593 8192 256 111969 113346 738080 1209858 8192 512 111102 152154 666457 1109280 16384 4 20141 24573 336758 317315 16384 8 40581 50107 613858 505554 16384 16 73543 90295 884183 855200 16384 32 112892 132189 1240540 1202760 16384 64 148333 185848 1378558 1450793 16384 128 183778 231697 1844827 1595351 16384 256 183996 249686 1796268 1794110 16384 512 146842 202639 1674377 1759475 32768 4 25059 26467 356860 317891 32768 8 38828 46263 590978 627317 32768 16 59976 77809 815202 835425 32768 32 111836 124324 944027 981168 32768 64 125356 123493 1277102 1039166 32768 128 100154 140275 1398246 1228638 32768 256 105776 141986 949381 1610075 32768 512 133829 152676 1598205 1040126 65536 4