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 15:46:49 2025 Auto Mode Machine = Linux oleg311-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-oleg311-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 15362 26338 365314 40865 64 8 17125 10512 491815 400168 64 16 21533 22214 718114 718114 64 32 6993 79306 1124074 1143223 64 64 5790 107900 1562436 1460430 128 4 11029 17048 323259 114794 128 8 12498 32233 463696 397739 128 16 23660 68020 927549 902598 128 32 28769 114671 1085013 1105114 128 64 34952 152919 1451764 1440082 128 128 33350 153268 1802755 1967960 256 4 20747 10213 185774 70502 256 8 27029 52159 613985 559005 256 16 48985 20568 808050 1027695 256 32 38642 162643 1023775 1137672 256 64 81947 146629 1185399 1570244 256 128 72194 112530 1487577 1437779 256 256 40900 189078 1855098 2061693 512 4 15965 25628 389050 363376 512 8 19213 19181 522908 502475 512 16 47205 20338 825699 747261 512 32 49902 89985 1075459 1014013 512 64 69565 82793 1004057 1343179 512 128 78827 162027 1179413 1410215 512 256 68120 58129 1729323 1471074 512 512 87328 213875 730236 947779 1024 4 9808 17278 379420 328818 1024 8 31098 29689 586759 456920 1024 16 37520 21541 280006 613934 1024 32 44653 102062 435382 1136593 1024 64 55570 91887 977060 1324460 1024 128 75079 207839 1458489 1367037 1024 256 59911 170470 1530197 1585557 1024 512 65556 197036 1617808 1799462 2048 4 19260 18129 258197 160791 2048 8 19465 16185 473854 387233 2048 16 31223 30560 765059 780774 2048 32 42557 62136 954776 517191 2048 64 68923 148857 773672 328677 2048 128 87152 145032 1010365 1354493 2048 256 62965 169257 478153 1550304 2048 512 71493 107124 1728424 1655474 4096 4 8147 12139 170980 216319 4096 8 28245 22450 329155 303360 4096 16 24218 36037 579347 806308 4096 32 32622 53783 502764 1009582 4096 64 45147 59623 1195137 410757 4096 128 94904 67814 1297788 265667 4096 256 83409 137958 929857 695180 4096 512 124434 78047 978251 1451394 8192 4 11059 17701 115999 225767 8192 8 20677 22290 379964 478669 8192 16 32920 32146 282357 330017 8192 32 48328 43287 724968 842877 8192 64 46698 60748 1129147 1116706 8192 128 101189 90567 331431 629774 8192 256 104950 73382 1139369 1389911 8192 512 70660 63104 1222687 894323 16384 4 4675 13617 228282 126012 16384 8 28113 32901 316001 519748 16384 16 49636 50268 579061 495433 16384 32 46657 51112 917926 726630 16384 64 60328 90954 1101665 1023558 16384 128 95462 103521 1150890 695303 16384 256 78459 125716 870287 1081961 16384 512 94179 125065 1133988 1414132 32768 4 16732 17614 324676 324261 32768 8 31926 31002 488571 321249 32768 16 37629 38757 314880 478561 32768 32 63516 73525 584213 589035 32768 64 46144 71361 792032 1054417 32768 128 71574 89438 1244367 938292 32768 256 87872 109024 1389706 951807 32768 512 73118 125717 974801 891038 65536 4 12325 15580 264810 250369 65536 8 21330 25286 444092 222382 65536 16 37435 43406 321407 476057 65536 32 59316 58865 639026 622717 65536 64 59772 69730 446938 685852 65536 128 60815 87117 607911 854802 65536 256