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 15:47:21 2025 Auto Mode Machine = Linux oleg313-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-oleg313-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 8014 21693 321940 402569 64 8 10241 40126 503814 561808 64 16 4093 56586 376589 743988 64 32 10763 76547 780776 725882 64 64 13973 65909 1780008 1562436 128 4 8484 10207 82636 377597 128 8 13762 39251 757430 633995 128 16 23361 64067 814915 870405 128 32 5336 20453 978253 1291158 128 64 9975 101992 1579934 1319723 128 128 14084 140365 204459 1878447 256 4 9831 17145 368881 383232 256 8 16015 41444 593947 573946 256 16 17792 21478 839644 748353 256 32 23748 87340 958864 1219045 256 64 33653 53612 1280084 1241598 256 128 22920 123435 1376935 1632308 256 256 16253 169418 2152625 2170027 512 4 13605 15150 336395 344545 512 8 14467 33098 361601 505432 512 16 14507 23949 821907 854615 512 32 43316 93892 1038532 346435 512 64 52052 128902 1302447 1240025 512 128 59813 132333 1700565 1450212 512 256 60270 158710 1711407 1770674 512 512 62136 142341 1730717 1895721 1024 4 17065 18174 248066 146411 1024 8 13145 28412 259110 485317 1024 16 28208 32432 505480 919337 1024 32 37214 39654 1061322 386557 1024 64 45221 93201 585479 1291406 1024 128 51602 130080 1510288 1521524 1024 256 80687 115017 1544504 1615374 1024 512 27268 83028 471466 1818510 2048 4 11691 12817 248480 210435 2048 8 18069 19287 121774 690242 2048 16 39083 56353 859439 857980 2048 32 43474 78006 1088324 998503 2048 64 62058 103518 949814 1123483 2048 128 75561 47364 1332432 1370047 2048 256 72843 93712 1687011 1685687 2048 512 82198 147050 1708146 1765367 4096 4 11570 11812 158933 239254 4096 8 26167 15668 298480 273945 4096 16 54750 35677 411870 623344 4096 32 69189 79050 790140 991290 4096 64 56182 57653 823626 1346510 4096 128 64963 109565 975474 1450903 4096 256 42790 109317 920441 1370901 4096 512 65430 99579 684489 1484118 8192 4 18912 13445 286654 277271 8192 8 18388 15391 195494 207250 8192 16 22446 33518 622585 551841 8192 32 59069 46673 500398 822321 8192 64 61608 62531 1271038 656562 8192 128 57987 53981 892673 1499521 8192 256 53797 52356 969797 942891 8192 512 81754 112589 1777000 506461 16384 4 12598 11998 231966 242263 16384 8 25692 19020 352898 262308 16384 16 27176 45993 726853 406340 16384 32 45579 63172 840812 997933 16384 64 6888 93981 885767 863865 16384 128 51639 54436 763890 964960 16384 256 58639 64985 1276416 1245463 16384 512 49181 59979 1388586 1112815 32768 4 10555 8727 113448 112454 32768 8 18763 16962 316107 243160 32768 16 30207 31762 610373 760685 32768 32 36877 48503 1028728 778634 32768 64 40087 65956 753181 1137101 32768 128 70159 70934 1230354 1268263 32768 256 63601 64831 898341 1320058 32768 512 68667 72766 1588360 967717 65536 4 12752 11150 263170 175131 65536 8 21562 22855 298859 297137 65536 16 33581 35974 681773 511496 65536 32 46050 49899 750198 553004 65536 64 55289 71404 1241287 732867 65536 128 50449 57904 1254538 1315011 65536 256