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: Mon Jan 13 11:34:09 2025 Auto Mode Machine = Linux oleg341-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-oleg341-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 7156 24652 326641 402569 64 8 17348 48160 889431 405610 64 16 22807 73729 1183548 1279447 64 32 16112 74342 842003 913649 64 64 16389 117026 1183548 1279447 128 4 10277 20430 398921 445978 128 8 17032 20050 402510 414314 128 16 22755 52353 748976 496272 128 32 21354 61099 673778 660515 128 64 24041 79609 766076 983630 128 128 39517 149721 1377278 908709 256 4 14578 14631 366739 252954 256 8 18837 26789 298692 549564 256 16 20488 50854 603630 617161 256 32 29297 56836 543445 618227 256 64 44399 128441 1202660 1570244 256 128 47197 136161 1897721 1766587 256 256 48049 149529 1588832 1495866 512 4 20037 19051 353390 290561 512 8 34142 37652 668413 872320 512 16 44305 81258 509993 610287 512 32 40267 111715 936209 1055894 512 64 55506 63054 966113 741072 512 128 66356 139439 1038532 982917 512 256 66684 104212 988345 844865 512 512 56902 119127 1221684 1091863 1024 4 14137 20311 533880 567006 1024 8 25552 33269 518978 482591 1024 16 35192 49679 834005 979958 1024 32 60309 66368 612795 781072 1024 64 50368 90580 945651 798201 1024 128 70708 109226 944612 835140 1024 256 64072 97728 967813 801777 1024 512 98038 190550 1210257 1434138 2048 4 21928 25327 391951 399071 2048 8 29233 38984 266389 356283 2048 16 35959 47400 695664 699916 2048 32 46790 71513 757703 790111 2048 64 66409 80750 842827 859439 2048 128 62996 102042 846982 940352 2048 256 78908 106917 896671 1092199 2048 512 103497 129883 1068425 1155678 4096 4 24868 26164 210656 251550 4096 8 35560 41047 536538 498910 4096 16 53373 56605 712360 733655 4096 32 60042 68651 860292 866497 4096 64 72557 94598 710123 715953 4096 128 81524 107006 822325 941837 4096 256 129247 113331 1140927 1069144 4096 512 90929 106561 1281620 1411447 8192 4 28776 31747 415646 305203 8192 8 40423 50862 635822 548879 8192 16 75998 81285 1186053 953991 8192 32 91462 115642 1205951 1182298 8192 64 108159 116637 1103437 1118815 8192 128 83214 117812 875121 897477 8192 256 105583 143377 996373 945096 8192 512 98062 140661 949142 1015484 16384 4 28382 34536 342089 343233 16384 8 48177 55648 407572 491552 16384 16 71960 75450 739111 880908 16384 32 100002 108234 673655 667919 16384 64 110759 130036 861450 865464 16384 128 124596 168133 1372555 1148141 16384 256 111070 122903 1551937 992614