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 22:03:26 2025 Auto Mode Machine = Linux oleg118-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-oleg118-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 1075 22384 371894 141296 64 8 9356 36344 476959 168424 64 16 11805 57805 1143223 874936 64 32 5509 33039 1138375 220606 64 64 9893 62068 1492919 1357066 128 4 8812 20592 204459 351860 128 8 9215 31008 511887 186880 128 16 15351 12203 722760 707520 128 32 11590 52307 386848 1057236 128 64 13923 103646 1421023 1387960 128 128 9745 105355 1684006 1455701 256 4 6200 11453 259370 310616 256 8 18158 9181 562520 467086 256 16 17056 53022 742146 760006 256 32 9170 68985 928195 1019886 256 64 10395 82526 1312954 1292410 256 128 15226 104695 1534342 1040643 256 256 16569 119121 2081678 2065659 512 4 14574 13529 252948 268609 512 8 16636 26708 345932 507942 512 16 30330 33214 820337 533297 512 32 24614 30908 1515722 1437592 512 64 26009 88857 1185272 742096 512 128 25695 32755 1510391 448719 512 256 21020 98046 1797349 1642050 512 512 38811 150544 1854787 1566585 1024 4 5616 14660 250672 197299 1024 8 16556 25585 326742 230431 1024 16 21829 36353 524364 813933 1024 32 17900 62485 379957 763576 1024 64 23546 69423 713591 1155864 1024 128 33866 90626 1137798 1363565 1024 256 21043 53208 789544 1554004 1024 512 27263 61738 1289855 1166221 2048 4 12151 14421 135270 330791 2048 8 24212 22423 445124 612437 2048 16 23643 39581 664505 518596 2048 32 47096 45777 850504 375437 2048 64 37619 47695 908621 1047577 2048 128 31011 64769 807567 1381061 2048 256 40130 57913 966050 1334295 2048 512 51891 122885 1433135 1492654 4096 4 7911 11829 115001 223935 4096 8 27003 28313 424626 240177 4096 16 29527 39728 501956 520589 4096 32 33361 47703 237906 961229 4096 64 57811 55335 643517 812217 4096 128 67625 74302 1209355 1377827 4096 256 71327 119153 263273 1019709 4096 512 108716 140510 396747 1659601 8192 4 8918 10404 112245 201139 8192 8 17968 24364 171105 301573 8192 16 32704 41172 167221 369925 8192 32 40323 37261 728565 360105 8192 64 47248 51811 904898 942038 8192 128 44699 55264 327379 901101 8192 256 70727 60858 766893 1033039 8192 512 69321 46790 364301 1459458 16384 4 8714 4066 171893 169967 16384 8 17860 20565 365770 315745 16384 16 23858 37919 566843 519104 16384 32 29076 36695 388208 788376 16384 64 28862 55469 267690 504323 16384 128 50103 59996 485825 1107846 16384 256 48576 64764 892428 903694 16384 512 52887 49150 913825 1212822 32768 4 10251 9424 220933 142672 32768 8 14857 13751 133659 230105 32768 16 19819 28855 237762 379562 32768 32 20911 27623 366356 362614 32768 64 26535 40549 1014333 534158 32768 128 38703 47491 547694 499063 32768 256 58220 58716 579657 1090804 32768 512 53941 75439 474053 436220 65536 4 9387 8642 179910 180089 65536 8