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: Wed Apr 23 21:09:47 2025 Auto Mode Machine = Linux oleg358-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-oleg358-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 12153 13829 80519 329852 64 8 15227 23808 71018 528618 64 16 15318 26678 842003 842003 64 32 26444 142572 913649 778512 64 64 10528 119634 1562436 1421755 128 4 15528 27269 305594 365764 128 8 25093 26121 292922 595328 128 16 38693 65810 774922 895074 128 32 14682 78919 790905 1076312 128 64 35467 140036 1436229 1377278 128 128 27043 146653 1642783 1802755 256 4 20181 19654 325296 292190 256 8 27095 52232 437582 603970 256 16 24813 38253 847597 746272 256 32 57800 105560 937106 895676 256 64 67261 126221 1049800 1208072 256 128 49277 168752 1610276 1610276 256 256 69471 232723 1123389 2034350 512 4 24424 25767 398138 210955 512 8 37377 44664 491436 560729 512 16 60185 74235 866338 655558 512 32 72707 86269 1190529 1187895 512 64 94866 155526 1312798 1350783 512 128 97840 215485 1334001 1589779 512 256 76633 237479 1537424 1754758 512 512 107364 253336 2009236 2055390 1024 4 24051 30184 387709 382802 1024 8 42649 47394 583174 673212 1024 16 59427 77817 954478 755782 1024 32 98216 123136 507991 1198772 1024 64 110738 117240 1217461 1204487 1024 128 105512 169729 1602715 1506051 1024 256 77989 171149 1697745 1573360 1024 512 85383 178119 1759651 1806273 2048 4 25082 24275 288487 278986 2048 8 33314 40671 661079 596531 2048 16 56769 58437 777805 880133 2048 32 82857 119983 1098203 1234397 2048 64 110083 114368 1351935 1122895 2048 128 118668 130562 1846580 1678768 2048 256 154576 205207 1514764 1699359 2048 512 138565 172756 884301 1016343 4096 4 20812 28002 341420 331390 4096 8 42507 46355 432156 657255 4096 16 55074 64954 605996 797031 4096 32 84286 89622 1018681 1422786 4096 64 74857 89916 878594 973374 4096 128 90433 123169 762201 1200146 4096 256 121662 152649 1053281 1570543 4096 512 116609 165622 1098962 1667008 8192 4 22352 23914 305602 305260 8192 8 42513 42596 566797 587117 8192 16 63810 73814 512580 725029 8192 32 73829 105172 966279 556597 8192 64 108589 175440 735710 1155617 8192 128 127037 137791 930507 1525553 8192 256 108272 135928 1449667 1047718 8192 512 156371 132818 1105959 1364683 16384 4 26546 26568 357720 388984 16384 8 45934 41012 492486 590775 16384 16 55470 58904 757892 818090 16384 32 87313 105271 1147508 981246 16384 64 70239 102010 1144775 649542 16384 128 86228 99192 807336 795845 16384 256 86323 108467 1464834 1562487 16384 512 113970 121901 1476542 1215267 32768 4 20952 21699 348195 333461 32768 8 37621 44495 565609 629706 32768 16 70739 70265 803746 768675 32768 32 91194 111689 1127326 1124044 32768 64 135893 137394 1217687 1076442 32768 128 140855 145440 1303532 1335839 32768 256 155461 205465 1257495 1288210 32768 512 128559 193164 1628774 1362835 65536 4