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 15:32:01 2025 Auto Mode Machine = Linux oleg424-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-oleg424-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 3613 8802 388021 385237 64 8 9936 44942 586352 586352 64 16 17636 44202 809014 877797 64 32 5049 33264 1013707 969761 64 64 12407 89394 1363961 1518251 128 4 11801 20115 255554 267258 128 8 18071 41692 490380 497653 128 16 16336 57555 662962 740710 128 32 15920 107744 558771 382167 128 64 24182 23823 921183 1196221 128 128 22091 138090 1684006 1663139 256 4 15938 12907 233381 355566 256 8 12428 9775 408297 387379 256 16 18779 17070 741633 365740 256 32 45488 89264 996229 1132871 256 64 48559 131685 1415041 1048775 256 128 28073 114547 1098113 177161 256 256 52126 168514 1942349 1581810 512 4 14383 17927 298394 213514 512 8 20700 14839 173564 475337 512 16 27023 67376 866338 716112 512 32 47306 64965 941133 833713 512 64 71062 48599 1091863 624485 512 128 82780 201097 1270094 1312798 512 256 77681 242878 1574625 1684557 512 512 25810 183438 2073249 1683237 1024 4 6457 9835 159570 124770 1024 8 8982 21350 560788 558309 1024 16 16926 50021 819837 501466 1024 32 15719 48752 991266 1013727 1024 64 82626 39583 1008964 1119120 1024 128 89879 152999 1357961 985580 1024 256 34189 147802 1414304 413741 1024 512 47940 214311 952573 1792702 2048 4 14929 8146 205664 296861 2048 8 23785 19279 452606 521524 2048 16 21642 39250 582968 793835 2048 32 27668 30253 753780 832131 2048 64 57651 38231 801314 499507 2048 128 32853 181483 946882 709864 2048 256 77522 64299 1477506 1007876 2048 512 80421 194920 730697 1453505 4096 4 17028 15968 255695 183783 4096 8 27714 18330 214561 146736 4096 16 33487 41939 759371 687475 4096 32 43367 47745 1143509 1062531 4096 64 55606 93302 1181087 1108249 4096 128 78432 123764 934104 1274016 4096 256 61131 83250 1149554 650141 4096 512 86550 123817 1774632 1720945 8192 4 8710 14830 161326 311851 8192 8 19909 19255 505961 406918 8192 16 26180 32720 319412 269233 8192 32 49594 67099 262800 973369 8192 64 3904 68923 948907 1255847 8192 128 64710 66331 337174 1421186 8192 256 71651 75907 697251 487650 8192 512 70081 68747 669052 1744432 16384 4 12161 11528 226768 117831 16384 8 26244 23707 428674 301326 16384 16 23003 34505 300237 271550 16384 32 45291 43607 957618 1104871 16384 64 90660 48177 458448 452182 16384 128 58865 67481 778780 1224513 16384 256 52731 121220 1158203 779231 16384 512 66689 76907 693591 1496543 32768 4 13258 13195 248276 208507 32768 8 21652 24465 394737 352693 32768 16 33611 38507 343430 379804 32768 32 37671 43854 725839 742111 32768 64 56419 69791 480645 437074 32768 128 50954 79134 646236 837349 32768 256 49110 85821 330655 869686 32768 512 75976 91913 1242624 1311931 65536 4 11847 14242 277812 162906 65536 8 24681 24525 294112 249895 65536 16