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 16:47:09 2025 Auto Mode Machine = Linux oleg404-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-oleg404-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 15591 26710 331481 320021 64 8 7879 32287 615952 653436 64 16 11608 39675 821391 998622 64 32 22314 77296 1143223 877797 64 64 10510 64842 1336792 1722886 128 4 11405 24995 392792 343970 128 8 14080 43387 595328 592046 128 16 14066 69266 841746 803932 128 32 24010 33144 841746 1229084 128 64 29385 102813 1684006 1421023 128 128 51573 158612 1885042 1911894 256 4 19535 18517 379306 250944 256 8 15661 50612 619655 562520 256 16 32039 67017 889002 658008 256 32 48219 111931 1132871 920240 256 64 35015 95666 1375171 1152323 256 128 60462 83966 1552085 1561112 256 256 34074 161106 1894373 1260547 512 4 21435 23250 363622 296294 512 8 26267 33826 616950 633699 512 16 50254 75784 302428 847532 512 32 51769 78193 1135150 1193175 512 64 45795 162333 1347393 1429934 512 128 82065 217053 1174254 1560891 512 256 86310 95610 919375 1624659 512 512 41922 102771 1889050 2063289 1024 4 23657 22915 355814 287158 1024 8 28269 37840 520362 484605 1024 16 34580 53598 792457 511987 1024 32 53455 66822 1053512 1098511 1024 64 82586 57853 236587 1125277 1024 128 70286 133542 206193 268003 1024 256 90571 228118 1307923 1571057 1024 512 87875 119431 354083 1568189 2048 4 19385 24909 294722 284719 2048 8 36107 30329 478819 193738 2048 16 40156 63272 502458 756302 2048 32 80134 113784 1177702 1105837 2048 64 72449 75583 1098063 1155678 2048 128 102734 158182 984541 1463909 2048 256 88973 237475 499391 604635 2048 512 83700 160338 1865023 899393 4096 4 20411 27365 300711 325988 4096 8 35964 45963 622125 557501 4096 16 56541 58690 823666 982222 4096 32 94071 86377 923956 634533 4096 64 70942 139390 1171263 964196 4096 128 79973 139206 1370354 1363069 4096 256 116379 120783 1487846 1397441 4096 512 126517 193271 1669763 1776283 8192 4