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 15:15:57 2025 Auto Mode Machine = Linux oleg221-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-oleg221-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 9632 13792 176741 148486 64 8 4449 26578 423529 91841 64 16 10905 53732 688639 760859 64 32 7101 80907 983980 592827 64 64 10682 89157 1143223 1392258 128 4 8585 19150 258135 299792 128 8 10571 36290 506097 400110 128 16 13054 58072 688467 630273 128 32 17503 73314 337695 934004 128 64 20890 133324 1294270 1319723 128 128 10688 111875 1827299 2453642 256 4 11567 20144 159289 395804 256 8 12282 27497 493264 519266 256 16 22297 55663 1103757 410168 256 32 27364 87940 606700 1070737 256 64 36670 65123 1260547 1147398 256 128 29667 90911 1180188 1506359 256 256 13275 148147 1790149 2015259 512 4 15036 16623 175522 336395 512 8 15859 27284 271187 285235 512 16 21581 43029 846197 581846 512 32 22643 54642 922535 701378 512 64 57239 97357 1166599 1125040 512 128 55137 108448 1411141 1350783 512 256 60002 127584 1279935 1655979 512 512 68467 156581 1985091 1983258 1024 4 18852 21356 394004 269889 1024 8 25638 34664 334191 188650 1024 16 37296 61468 668497 834491 1024 32 46514 86355 633681 842182 1024 64 53205 59809 1268896 1286378 1024 128 64557 99573 1456510 1305935 1024 256 52261 121084 938420 1372717 1024 512 54838 214001 1825466 1715375 2048 4 15123 20539 403628 364276 2048 8 18362 34513 286275 432877 2048 16 33062 37086 878962 706478 2048 32 52414 68854 981840 1036329 2048 64 71256 104961 331238 1123483 2048 128 49394 113055 720402 1208181 2048 256 92260 101536 1642495 1605053 2048 512 66993 128490 1174321 1095123 4096 4 19170 21753 244043 257222 4096 8 30121 29499 324744 389497 4096 16 49123 47635 710857 542742 4096 32 60853 57896 977806 900421 4096 64 75750 109305 1269310 1119734 4096 128 91357 105007 1432634 1399946 4096 256 86438 141813 1481431 1108821 4096 512 93494 133577 1088518 1294171 8192 4 21226 24449 284859 365537 8192 8 30832 35345 306037 535491 8192 16 46726 53097 796271 529778 8192 32 50957 74309 729013 644686 8192 64 78648 89565 1052694 1022860 8192 128 77093 114582 644432 812367 8192 256 79989 135971 1295625 1642607 8192 512 74337 126972 711119 1041841 16384 4 19120 21465 254079 300338 16384 8 37089 38671 600344 536653 16384 16 58231 57660 805349 699991 16384 32 67681 85292 575401 854892 16384 64 83699 78946 1351819 1145003 16384 128 78553 108823 994827 999573 16384 256 78736 91438 1319807 619927 16384 512 83067 96957 980784 1224884 32768 4 15428 17365 274231 327801 32768 8