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: Tue Jun 10 21:36:34 2025 Auto Mode Machine = Linux oleg202-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-oleg202-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 22161 28391 516414 426897 64 8 27200 55555 792299 463774 64 16 31127 76285 686877 842003 64 32 43564 82906 863676 1722886 64 64 48968 170240 1279447 1105556 128 4 27182 25878 501839 540217 128 8 30593 38198 744820 881842 128 16 51993 79058 761728 715059 128 32 63899 139890 955616 1579934 128 64 75426 187664 1266785 1319723 128 128 68558 142830 1579934 1622919 256 4 29177 32964 521536 362651 256 8 43701 55603 850282 761623 256 16 57081 103765 1019886 1122215 256 32 94156 107613 1610276 1163562 256 64 101585 179892 1058076 1332507 256 128 118792 218470 2015259 1752173 256 256 115371 280731 1561112 1740810 512 4 24492 28660 304400 432106 512 8 51344 54748 821907 847867 512 16 78588 107655 1185272 1169140 512 32 93074 109310 1361057 1492545 512 64 132717 185242 1204552 1472083 512 128 107246 270062 1257451 1759070 512 256 144428 273501 1947291 1985091 512 512 172977 317590 2178404 2196227 1024 4 29516 26919 428433 351188 1024 8 45612 55208 731455 808265 1024 16 83237 92728 927677 1117955 1024 32 96786 140157 1314729 1096548 1024 64 134063 214001 1602118 1592612 1024 128 150232 258767 1437980 1590254 1024 256 165561 187415 1471481 1665486 1024 512 202613 288121 1927891 1980337 2048 4 29874 34853 503814 500001 2048 8 53203 49737 807263 823515 2048 16 75374 92197 1139580 1021418 2048 32 99061 147063 1258818 1328106 2048 64 148589 180617 1101018 1172878 2048 128 183283 237561 1616531 1601462 2048 256 200939 228548 1735759 1435290 2048 512 157236 290624 1475729 1763917 4096 4 31547 32273 530983 550622 4096 8 47703 54596 748943 825804 4096 16 83882 101123 1100793 1207909 4096 32 109116 142038 1110901 1283247 4096 64 148744 139804 1519292 1594448 4096 128 154817 168935 1491074 1776283 4096 256 197920 235360 1583426 1655602 4096 512 211549 319347 1527804 1925820 8192 4 30964 31549 328943 354389 8192 8 50504 55787 704268 596390 8192 16 88094 85722 986164 1162970 8192 32 133509 134421 1317029 1376602 8192 64 162381 187855 996720 1072106 8192 128 134189 223543 1113486 1402735 8192 256 181891 228029 1664731 1527520 8192 512 203230 281998 1533519 1718433 16384 4 31011 32687 507841 457079 16384 8 50328 61525 747984 773086 16384 16 64818 93968 971481 971700 16384 32 119669 126865 1242603 1029863 16384 64 147066 182400 1297847 1582821 16384 128 177007 202244 1263299 939178 16384 256 191283 208960 1020867 1132362 16384 512 205692 229779 1010048 1055601 32768 4 30867 36010 377267 531533 32768 8 50591 64199 778744 694884 32768 16 79936 96528 1069973 1011951 32768 32 107104 127994 766826 811889 32768 64 137286 178155 1161902 1074574 32768 128 162904 191599 1674230 1680926 32768 256 230546 240727 1772106 1749593 32768 512 165829 294668 1819737 1822657 65536 4