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 15:49:48 2025 Auto Mode Machine = Linux oleg114-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-oleg114-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 2751 18291 343792 167165 64 8 14215 29181 546928 603489 64 16 10673 53742 763021 789967 64 32 10387 87188 1049372 1017549 64 64 4333 54187 1421755 1518251 128 4 9070 20447 172749 207783 128 8 17481 17517 70291 606767 128 16 13790 46579 841746 774922 128 32 20285 105521 1172704 985435 128 64 35251 78286 1294270 1032829 128 128 10678 43039 1732927 428193 256 4 9873 18650 141359 332036 256 8 21977 35078 570288 308829 256 16 24385 55785 844929 328682 256 32 40474 108428 396243 1099237 256 64 38473 136109 1298662 822913 256 128 40524 143513 1532153 1384034 256 256 26427 181167 582983 1673001 512 4 12039 7632 129290 319005 512 8 21417 24103 442889 360569 512 16 11163 46014 709957 690996 512 32 51905 79466 934580 612550 512 64 34473 96655 768934 1589779 512 128 35240 24579 141862 382127 512 256 58395 89936 1696534 922535 512 512 50182 214859 1537424 1130370 1024 4 16636 15911 102193 107133 1024 8 19223 35946 345843 461486 1024 16 39469 17138 957884 202365 1024 32 39914 61439 974179 454310 1024 64 64728 51582 273655 945443 1024 128 51504 74230 304590 1131205 1024 256 39832 42875 1546729 1141730 1024 512 50468 81821 1709231 1387350 2048 4 10343 6877 68001 188252 2048 8 17432 16788 135809 206182 2048 16 24567 33421 689577 353527 2048 32 34361 66284 808174 447653 2048 64 30858 38996 911031 243342 2048 128 43186 31093 1045919 916278 2048 256 108675 73095 1095262 1244231 2048 512 58232 156016 1507057 1654199 4096 4 9329 8225 78521 179933 4096 8 17443 10438 186579 165822 4096 16 24448 24289 341366 699568 4096 32 24222 40461 878594 859603 4096 64 46343 1672 732466 1112123 4096 128 38793 66243 701482 636413 4096 256 64133 180639 845598 1137453 4096 512 56513 64073 1353618 233896 8192 4 8394 8550 128041 62859 8192 8 11631 16502 255457 277048 8192 16 31861 31338 372242 314895 8192 32 31542 35054 397035 392580 8192 64 47887 52911 313330 740610 8192 128 46209 47600 398093 526781 8192 256 53459 105512 464925 330936 8192 512 50324 81674 1149739 968895 16384 4 9653 11038 131634 219064 16384 8 15139 17195 309962 434474 16384 16 25186 27225 442202 574007 16384 32 31171 31123 446332 364438 16384 64 34186 48842 280015 304342 16384 128 32977 38385 350887 748816 16384 256 47627 60626 947269 732017 16384 512 37778 56326 442860 744355 32768 4 8427 9967 144772 84228 32768 8 11817 14718 209927 157329 32768 16 21693 24848 267753 295228 32768 32 26604 33739 603528 289684 32768 64 39173 44809 574354 488054 32768 128 42872 49308 452111 567009 32768 256 47049 77960 573329 455034 32768 512