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 23:39:29 2025 Auto Mode Machine = Linux oleg218-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-oleg218-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 3900 22015 284418 71018 64 8 10204 34686 576282 481234 64 16 7884 40331 799377 818885 64 32 10453 83655 1143223 1143223 64 64 8048 105774 1492919 1734015 128 4 5678 22984 341345 227025 128 8 12089 30166 584950 559353 128 16 14129 28287 771581 747933 128 32 11958 92694 1220700 1254941 128 64 8844 113268 1377278 1220700 128 128 9874 146254 1967960 1598754 256 4 15939 18139 335145 348752 256 8 23938 28422 212630 545931 256 16 24251 66203 844929 792543 256 32 22930 113421 1128110 1195962 256 64 39341 114595 1137672 1354356 256 128 21694 157076 1729594 1280084 256 256 36744 159006 1023775 1826695 512 4 16098 20507 299225 200853 512 8 24065 25752 402240 557092 512 16 20921 58710 806474 846197 512 32 36602 70021 462141 951558 512 64 57606 123825 1286838 857687 512 128 76863 114668 402542 1580419 512 256 77751 87764 1657257 1848401 512 512 67404 134387 749608 2016784 1024 4 14506 17051 245093 165052 1024 8 27335 25169 380529 478718 1024 16 31373 63018 830457 948157 1024 32 43699 92518 1029029 1075407 1024 64 75975 127014 1130014 1200447 1024 128 60433 154424 904431 1440391 1024 256 44513 78927 389962 1103592 1024 512 72346 136318 1143858 1917562 2048 4 18231 20542 292365 303415 2048 8 32694 36698 451014 371283 2048 16 43073 44445 832535 872534 2048 32 64239 53087 494674 455921 2048 64 46092 80115 550537 1388428 2048 128 85304 114541 1559876 1615011 2048 256 94499 173998 972503 1701042 2048 512 108497 169537 1699359 773393 4096 4 22657 20999 299986 275509 4096 8 32385 43554 429262 292404 4096 16 52863 59245 739625 825169 4096 32 71120 93173 655474 854430 4096 64 92138 139638 1046990 1248463 4096 128 101073 175005 1359402 1190664 4096 256 102684 130516 1556739 981773 4096 512 110969 115004 1198723 1552658 8192 4 21124 24931 372028 295047 8192 8 36276 35871 523482 313270 8192 16 59566 59103 592768 830410 8192 32 79744 90247 1052404 1064863 8192 64 98565 109055 1346025 1323013 8192 128 92483 96044 1266914 1164784 8192 256 103318 103863 1294356 1095068 8192 512 95629 111328 858075 969141 16384 4 19687 17206 324809 300701 16384 8 28762 32286 433622 462172 16384 16 46405 47765 319676 627450 16384 32 66363 75888 606319 533437 16384 64 68944 64856 622804 1225059 16384 128