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: Mon Mar 31 16:58:22 2025 Auto Mode Machine = Linux oleg216-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-oleg216-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 13657 22653 457452 270108 64 8 18901 24825 528618 639427 64 16 22559 80206 1204796 763021 64 32 24950 112702 942521 1484662 64 64 26678 154201 1828508 1933893 128 4 18494 28622 358438 488150 128 8 24888 29596 753179 426492 128 16 29589 72036 1032829 761728 128 32 36097 105874 1121270 1637771 128 64 46563 126865 1755594 1377278 128 128 45440 170879 1487977 1057236 256 4 21554 23771 383779 404452 256 8 33100 47967 527687 490336 256 16 40965 63087 984356 973645 256 32 57865 91073 1391207 1084800 256 64 55773 123719 1158540 1495866 256 128 68174 166116 1190657 1430119 256 256 83224 199847 2266207 1868008 512 4 17984 25198 370715 393542 512 8 32607 42730 679195 613250 512 16 53944 85019 668413 684390 512 32 71820 93345 1150351 935801 512 64 76168 137669 1166599 1789859 512 128 107450 206373 1209982 1340664 512 256 101527 188792 1961520 1463057 512 512 100684 150893 1705969 1827947 1024 4 23742 27699 358158 344318 1024 8 38105 50063 516358 465235 1024 16 54773 71820 783352 798201 1024 32 77763 105806 1173230 1402756 1024 64 90877 130713 1309518 1405050 1024 128 117500 164653 1528563 1793451 1024 256 130147 210488 1602118 1729884 1024 512 116746 211264 1965834 1841906 2048 4 24320 27306 388021 331775 2048 8 40856 48708 700658 468657 2048 16 63539 72224 620265 659809 2048 32 83602 108474 1192747 665999 2048 64 119800 146631 1155834 1182403 2048 128 139356 169520 1419165 1622945 2048 256 134295 184651 1722532 1496033 2048 512 137690 166857 1509175 1758140 4096 4 24784 24901 335408 363573 4096 8 39812 43423 570403 539877 4096 16 63179 77742 727658 782867 4096 32 96498 106414 884474 1221218 4096 64 119000 149129 943129 1320025 4096 128 140543 159036 1447846 1052958 4096 256 154606 205302 1737129 1668465 4096 512 148293 187391 1187290 1744537 8192 4 24968 25493 420596 402358 8192 8 40136 46755 676575 664665 8192 16 61681 70785 740099 740482 8192 32 98488 118307 1193842 1186749 8192 64 97998 141533 1192599 1501683 8192 128 136113 156640 1539566 1537499 8192 256 135624 171398 1307607 1503129 8192 512 136321 165051 1440248 1374950 16384 4 23604 25503 399425 397804 16384 8 39391 43841 687161 671476 16384 16 64798 72560 859102 799958 16384 32 88932 104699 1378198 1199673 16384 64 122622 146467 1482979 1459607 16384 128 136343 154224 1478289 1545514 16384 256 146607 163102 1509329 1623314 16384 512 154880 182370 1591435 1700480 32768 4