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 15:12:46 2025 Auto Mode Machine = Linux oleg333-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-oleg333-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 10147 13458 378715 316997 64 8 15241 47194 552557 532815 64 16 12640 71912 842003 998622 64 32 25609 74424 874936 926260 64 64 30117 93864 1518251 1484662 128 4 12860 23996 338547 253983 128 8 19539 33738 551878 540217 128 16 38588 68089 590094 876086 128 32 25295 80504 1048974 1032829 128 64 22168 98984 1254941 1196221 128 128 55388 119735 1802755 1254941 256 4 18002 21465 176549 84242 256 8 29551 49467 592636 603970 256 16 27385 78796 931416 850282 256 32 40030 108329 1147398 1099237 256 64 59137 131075 1213534 1201314 256 128 50674 201271 1044693 1523457 256 256 42666 184434 1642294 1868008 512 4 13357 13372 119624 317027 512 8 17935 29550 146908 334404 512 16 57521 57405 784094 377028 512 32 60794 109354 416194 912733 512 64 68185 97613 1171691 1305615 512 128 79566 87731 1575781 626672 512 256 62775 188792 1595686 1484293 512 512 89400 213344 2097550 1672748 1024 4 14927 14684 289597 293155 1024 8 26856 48694 614285 500473 1024 16 54847 65226 578150 1116792 1024 32 68279 61671 956178 643170 1024 64 96731 140814 1265904 1092921 1024 128 86867 203333 1544504 1316341 1024 256 74122 106567 1437980 582541 1024 512 74919 146852 1808555 1888889 2048 4 23798 22753 308714 260927 2048 8 36561 27401 436595 402606 2048 16 59420 51071 389728 776610 2048 32 51683 68941 901754 1012390 2048 64 82992 102369 1178995 1327285 2048 128 58650 135700 1469167 1466909 2048 256 54547 71829 1513696 1475476 2048 512 106550 68082 1634370 1324624 4096 4 13688 19730 282676 332332 4096 8 34738 34878 492671 425646 4096 16 39383 53465 874257 706443 4096 32 56342 86844 492968 492841 4096 64 63609 120687 1174627 488789 4096 128 86880 121951 1111547 1127450 4096 256 86070 111580 942715 881434 4096 512 130870 108618 1264917 889650 8192 4 20170 20528 217923 253716 8192 8 34017 33618 572750 414153 8192 16 44052 48226 552018 674079 8192 32