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 Jul 31 23:18:42 2024 Auto Mode Machine = Linux oleg256-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-oleg256-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 16520 43185 727850 679917 64 8 30979 61954 998622 1460430 64 16 37036 107382 1204796 877797 64 32 39581 131663 1690338 1679761 64 64 40946 167897 2278628 2379626 128 4 22126 34878 744820 913347 128 8 40870 44384 1455701 870405 128 16 49614 85668 1561553 1133103 128 32 64251 132501 1281909 1266785 128 64 71594 209077 2166499 2004703 128 128 82105 216584 1346196 1975201 256 4 26708 36148 1195962 958864 256 8 45967 55123 1479379 1354356 256 16 51897 87883 1132871 1391207 256 32 62002 87347 924200 1075025 256 64 88121 159621 1855098 1430119 256 128 86747 204802 1340826 1487577 256 256 104441 147617 1884399 1662639 512 4 27872 29406 860437 1135150 512 8 55017 66286 1433753 1372364 512 16 85992 99187 1080328 1662389 512 32 86883 167095 1667552 1999881 512 64 112949 194381 1904125 1333173 512 128 140158 228679 1347393 1827947 512 256 143014 232190 1672748 2178404 512 512 143262 229583 1580419 1239310 1024 4 22347 22136 653445 575285 1024 8 54107 55865 705735 1008964 1024 16 80635 74375 854073 1083546 1024 32 76830 135143 1368780 1988589 1024 64 118078 177655 1517224 1628234 1024 128 154075 179556 1614767 1599731 1024 256 145164 219457 1732676 1917562 1024 512 150675 245569 1906496 1808555 2048 4 30460 34289 1076728 1100454 2048 8 54006 73836 1456709 1406616 2048 16 87330 104271 1705094 1889224 2048 32 115392 162642 1596403 1369829 2048 64 114702 201439 1264935 1346636 2048 128 98471 119835 1066700 1071090 2048 256 79679 156874 986917 1110699 2048 512 111297 138735 1576480 1818820 4096 4 28108 33769 904212 850328 4096 8 50974 56624 863405 764439 4096 16 50776 78308 1239009 1754156 4096 32 128124 92671 947081 1183528 4096 64 80156 112989 1265011 1620772 4096 128 92621 116505 835929 927548 4096 256 108858 149472 1031712 996812 4096 512 100876 142321 1063320 1051862 8192 4 33129 36906 934201 1105070 8192 8 54447 68205 1165455 1082032 8192 16 99344 87228 1399194 1508342 8192 32 126717 165340 1489768 1517066 8192 64 167679 196568 1548865 1669747 8192 128 185246 220132 1528063 1777368 8192 256 187220 241040 1705214 1760250 8192 512 180524 273047 1723518 1937090 16384 4 31940 38882 855115 930215 16384 8 60307 64878 1368319 1087543 16384 16 96799 100931 1693941 1558907 16384 32 111185 160158 1793174 1894779 16384 64 159968 200278 1595166 1596871 16384 128 159588 243697 1753414 1728669 16384 256 208889 249023 1709533 1246299 16384 512 194598 245001 1764942 1802392 32768 4 34361 37372 864000 913848 32768 8 58423 66952 1342520 1349918 32768 16 94699 107120 1478302 1217914 32768 32 126490 162007 1799532 1646058 32768 64 153731 208095 1798873 1666577 32768 128 173238 239030 1718592 1632935 32768 256 203916 253326 1940986 1646709 32768 512 198095 270432 1779518 1567170 65536 4 33136 39251 901357 968320 65536 8 58559 66334 1189423 1173404 65536 16 82738 111157 1287744 1414491 65536 32