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 Feb 27 11:28:09 2025 Auto Mode Machine = Linux oleg222-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-oleg222-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 13801 32768 268756 387461 64 8 13843 27096 760859 769584 64 16 19522 80206 1304314 727850 64 32 22284 92634 1392258 1722886 64 64 23460 97442 1452528 2067979 128 4 13638 18451 290230 264363 128 8 11815 27426 341345 479432 128 16 19370 42257 600657 669577 128 32 22856 85450 601330 889145 128 64 31605 122021 1142750 715059 128 128 23506 117869 1040839 1102844 256 4 13039 17770 281319 279125 256 8 24732 34266 442815 514045 256 16 32068 47869 783292 677095 256 32 39646 69453 870974 965763 256 64 34972 93427 1163562 1632308 256 128 36681 88273 735537 1230218 256 256 50874 116586 1463250 1080434 512 4 15598 14856 282273 279809 512 8 19004 29299 437654 451549 512 16 34424 63007 636894 652174 512 32 35276 52001 538377 775599 512 64 49097 88062 850554 1028091 512 128 54225 105788 885996 909255 512 256 55737 117917 1096322 941133 512 512 53825 133751 967855 1190529 1024 4 16174 19938 250000 336733 1024 8 24283 27485 376460 445591 1024 16 38073 45642 649688 624014 1024 32 49704 74445 819837 771116 1024 64 58725 96897 942952 650180 1024 128 63046 99361 773476 1022902 1024 256 70127 108453 823136 981750 1024 512 76774 120727 1120288 1105865 2048 4 21290 23854 294127 309359 2048 8 30153 43735 696850 578376 2048 16 49097 54530 534871 886949 2048 32 54371 109220 1065510 1561009 2048 64 111986 150642 842083 868564 2048 128 70115 114279 938092 730386 2048 256 74532 124537 1166982 1452522 2048 512 91916 103366 1061690 1012390 4096 4 26815 29901 367053 355339 4096 8 36169 47160 496487 492431 4096 16 53465 60916 601476 649846 4096 32 67440 77562 720758 840181 4096 64 75308 95842 792729 848899 4096 128 77192 98580 871331 967182 4096 256 115706 135606 1560982 1458169 4096 512 183224 230151 1937548 1825353 8192 4 30608 30509 492663 325361 8192 8 44315 47029 601780 858503 8192 16 59688 73983 1019310 635575 8192 32 78884 104975 1166484 1079890 8192 64 121521 122062 1147014 1268738 8192 128 92548 131937 1158031 1159047 8192 256 105782 142247 986164 978385 8192 512 116393 146913 1434895 1074487 16384 4 29734 31852 296414 438486 16384 8 43284 58065 394538 483103 16384 16 72637 76466 603555 614670 16384 32 86012 121820 1446579 1591288 16384 64 90415 164531 1691897 1750243 16384 128 151286 163266 1539835 1520819 16384 256 161182 198485 1469941 1741461 16384 512 125582 147859 1069883 1012862 32768 4