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 15:33:33 2025 Auto Mode Machine = Linux oleg353-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-oleg353-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 5552 10462 394870 361380 64 8 4206 19265 566551 551422 64 16 7158 17783 889431 886494 64 32 14276 73306 1124074 1163036 64 64 8529 114091 1553394 1562436 128 4 13928 25191 390222 300464 128 8 13628 44318 722760 589446 128 16 6303 32332 927549 32810 128 32 15165 95311 1152564 1057236 128 64 27563 120623 1471662 1359835 128 128 29500 131302 1663139 2027414 256 4 13933 25493 143245 332036 256 8 7992 17075 454820 670332 256 16 19041 65020 996229 864661 256 32 36307 94288 970126 1312954 256 64 31135 121329 1241598 1405778 256 128 5240 150051 1662639 1729594 256 256 32929 142940 2019049 2000242 512 4 17063 10075 275855 364424 512 8 15412 13302 546460 568899 512 16 35461 37394 219180 823167 512 32 35919 78478 1077618 513530 512 64 35739 130152 434642 1261144 512 128 32894 122812 1772135 1625889 512 256 52314 166177 1842059 1115109 512 512 45560 166126 2124526 2091421 1024 4 17490 11936 109790 162332 1024 8 34531 46964 736094 371832 1024 16 37979 58931 799985 847667 1024 32 64593 92460 401406 471259 1024 64 42840 81038 1302766 1256644 1024 128