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: Fri Feb 7 17:22:39 2025 Auto Mode Machine = Linux oleg337-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-oleg337-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 11124 19476 242531 581273 64 8 16512 57446 926260 889431 64 16 22971 54100 743988 695778 64 32 22597 82575 901377 1124074 64 64 20043 127716 1484662 1679761 128 4 17220 29851 524387 579270 128 8 26435 43258 819893 520321 128 16 25064 77956 1065630 1281909 128 32 44754 131142 1561553 1684006 128 64 47816 172749 1997245 1997245 128 128 40366 204148 2166499 1306873 256 4 18141 28042 426628 550691 256 8 37148 49518 517016 483056 256 16 35402 92717 1369908 1023775 256 32 65040 92885 1376935 1325925 256 64 43760 123378 1040643 817898 256 128 76762 218248 1683493 1422540 256 256 80861 175942 2261434 2015259 512 4 19039 25689 301536 448719 512 8 43719 64549 878386 914287 512 16 56562 104045 1299295 1358474 512 32 74659 87492 1034032 1216149 512 64 97485 194680 1961520 1689859 512 128 112158 175164 2107844 1861217 512 256 111960 220689 1931527 1889050 512 512 98899 249538 2047551 2391924 1024 4 28676 26438 411402 380092 1024 8 27541 42572 675011 499019 1024 16 47599 100589 1022902 984676 1024 32 90348 147508 1297649 1191786 1024 64 99214 172330 1693061 1858644 1024 128 113612 121300 1597351 1350701 1024 256 140198 207829 1546729 1886400 1024 512 117661 249884 1654579 1942715 2048 4 32272 31162 393099 190266 2048 8 34108 51224 523654 496734 2048 16 42810 53670 624958 494219 2048 32 88192 87469 996534 975263 2048 64 104783 167305 1076189 1469167 2048 128 79134 216995 827084 1527423 2048 256 79324 129088 1067230 1087635 2048 512 69530 135377 1068292 938195 4096 4 25788 35182 489415 552481 4096 8 47843 43741 695518 716699 4096 16 72793 103510 1075906 873724 4096 32 84614 126186 1497051 1324298 4096 64 123499 159167 1509680 1155430 4096 128 101043 195728 1611951 1652259 4096 256 179664 247477 1925820 1958979 4096 512 163610 229970 1832752 1811686 8192 4 29383 31564 486579 459092 8192 8 51170 46418 792798 795036 8192 16 81423 72579 1093604 1202238 8192 32 97528 134219 1150201 1163797 8192 64 112563 153029 1536674 1230393 8192 128 141703 182299 1830293 1501159 8192 256 154228 209332 1643943 1810045 8192 512 154417 211242 1560330 1616411 16384 4 28938 29555 434933 401530 16384 8 43165 49747 635533 441259 16384 16 64962 91102 1218672 1055747 16384 32 101269 116204 909254 1179798 16384 64 128956 151782 1745176 1557989 16384 128 149666 198654 1848798 1560394 16384 256 163615 193641 1623161 1799042 16384 512 121889 229644 1838018 1868605 32768 4 28711 30232 437974 314014 32768 8 47318 46674 774435 693649 32768 16 67618 72306 833960 1074851 32768 32 83254 125243 1517106 1317249 32768 64 120598 157470 1723376 1706387 32768 128 121488 185005 1318475 1829304 32768 256 161902 199774 1720722 1860858 32768 512