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 Apr 7 13:16:42 2025 Auto Mode Machine = Linux oleg144-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-oleg144-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 14949 33071 394870 451299 64 8 28233 62502 581273 877797 64 16 34821 64391 752329 799377 64 32 43451 94960 1033216 760859 64 64 49382 212570 1232453 1892980 128 4 23319 21415 514339 446348 128 8 28483 34621 508012 681476 128 16 44351 67295 735635 1254941 128 32 68593 117533 1093856 1598754 128 64 43433 186296 1827299 1852520 128 128 76972 206107 1663139 1487977 256 4 24327 33894 446684 287034 256 8 42104 61777 842278 773140 256 16 55328 90650 1080434 1254656 256 32 70138 128965 1591186 1306564 256 64 105312 207815 1938842 1230218 256 128 106746 226968 2000242 1855098 256 256 106576 212084 2131261 1981783 512 4 33706 32378 458785 463738 512 8 35995 39384 478089 833713 512 16 69424 104364 713021 804962 512 32 78051 155200 1467055 1467055 512 64 107719 166564 1630828 1815584 512 128 119624 269047 1600443 1945526 512 256 114204 306223 1924603 2160868 512 512 129915 327969 2180616 2014892 1024 4 26584 30658 408119 303492 1024 8 44618 52434 778101 861266 1024 16 79981 106432 873705 909410 1024 32 85605 127474 1458984 1475525 1024 64 151884 196020 1399100 1780809 1024 128 132536 238360 1892218 1633188 1024 256 124046 289754 1477555 1793451 1024 512 151078 197762 1875690 1460472 2048 4 28437 30086 358544 335966 2048 8 42406 53944 500467 736208 2048 16 67405 83374 836589 1016824 2048 32 98850 150245 1291368 1375312 2048 64 107073 171899 1709505 1514764 2048 128 153892 205974 1726687 1317918 2048 256 145827 251411 905747 1784066 2048 512 206390 218942 2009902 1514764 4096 4 28027 32648 370576 406193 4096 8 45738 53712 795518 564573 4096 16 69174 72917 720486 733812 4096 32 89132 112511 853157 945725 4096 64 123102 153603 1107963 1097838 4096 128 131438 193034 1117912 1120026 4096 256 168069 199182 1265383 1037757 4096 512 171594 247314 1532985 1826129 8192 4 29081 32107 458859 377004 8192 8 47653 52546 668948 796418 8192 16 73199 82999 785584 747994 8192 32 94909 106926 1066681 1045964 8192 64 119911 177909 1534683 1115003 8192 128 127256 172123 1229645 1299889 8192 256 163275 227089 1694283 1297631 8192 512 183578 236373 1851697 1388451 16384 4 27421 28424 407797 439931 16384 8 51019 51737 572968 589756 16384 16 75789 80903 951242 957351 16384 32 112366 109170 1163124 1072957 16384 64 139372 186933 1532350 1294571 16384 128 156497 165613 1583003 1502564 16384 256 173931 216182 1611173 1643660 16384 512 193872 201139 1518702 1463773 32768 4 27112 28973 414202 408869 32768 8 47678 52420 676843 717543 32768 16 82499 95979 985474 983105 32768 32