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 15:47:06 2025 Auto Mode Machine = Linux oleg142-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-oleg142-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 5214 13763 221516 312204 64 8 6562 32206 470274 474430 64 16 3116 12549 1119387 743988 64 32 7464 16347 712397 1033216 64 64 3539 13043 1210227 1357066 128 4 5317 17269 310544 352553 128 8 8749 22464 612303 522346 128 16 4655 24060 362553 776042 128 32 7509 73778 404025 976473 128 64 18233 43927 1349580 1183041 128 128 18261 59069 1878447 1637771 256 4 8529 13022 180648 252716 256 8 7738 16269 582035 430909 256 16 11379 28920 714967 738065 256 32 29334 73858 1093639 753077 256 64 31864 87696 1185399 1163562 256 128 31511 60235 719277 1497953 256 256 17559 91430 1924938 1463250 512 4 11426 15842 251969 239947 512 8 16574 16046 247582 146999 512 16 7249 41316 608041 713258 512 32 33496 79788 471890 967855 512 64 23155 30322 745186 1066910 512 128 20245 86764 1201856 962218 512 256 33316 97675 1571169 884172 512 512 34056 27698 907717 703215 1024 4 8260 6879 220834 154663 1024 8 15303 16634 137027 154446 1024 16 12834 25930 168722 202891 1024 32 27337 51049 421413 960669 1024 64 24995 25091 1173230 495679 1024 128 33663 57376 1202127 957030 1024 256 52282 100679 1488307 510709 1024 512 44515 113816 999107 1542286 2048 4 9640 13002 97905 217644 2048 8 19970 14985 201614 390100 2048 16 21874 33495 637433 453084 2048 32 28600 68071 695439 537650 2048 64 28127 49968 514188 585472 2048 128 41253 86246 374210 931783 2048 256 62729 73370 1388428 1435290 2048 512 38572 84592 1342847 1015382 4096 4 11253 10692 151697 192543 4096 8 14660 20393 189787 293598 4096 16 22912 28934 494615 285732 4096 32 43814 26139 780626 242698 4096 64 49192 50913 1154731 1048396 4096 128 56147 90345 1199057 867065 4096 256 48541 73298 649453 344639 4096 512 51800 42238 706327 1274111 8192 4 12575 7964 258144 276784 8192 8 13863 19599 352755 159092 8192 16 29691 21741 240742 260775 8192 32 31686 41071 861128 752928 8192 64 43828 34354 949903 739017 8192 128 37651 47445 1155889 697435 8192 256 60874 53234 683234 451396 8192 512 53712 60139 1001455 750937 16384 4 6534 7934 193920 151575 16384 8 15456 18472 288334 352131 16384 16 20972 27286 339516 277468 16384 32 26298 25430 254078 634354 16384 64 29284 39287 278062 309494 16384 128 41990 52201 885037 973504 16384 256 43131 52379 557997 837666 16384 512 48065 62576 757399 529798 32768 4 10788 10887 178026 221514 32768 8 16322 17884 191902 394742 32768 16 28088 26459 474569 287809 32768 32 31187 35449 445355 376172 32768 64 37194 56664 559038 764497 32768 128 37955 36436 709986 719038 32768 256 39858 68467 1031507 982016 32768 512 43196 60715 838401 826616 65536 4 7871 12056 158261 145192 65536 8