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 Jan 15 18:22:17 2025 Auto Mode Machine = Linux oleg144-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-oleg144-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 10538 28493 703068 1013707 64 8 9132 28961 801764 760859 64 16 11860 56491 1119387 504762 64 32 18274 104214 1304314 1124074 64 64 12944 112090 1879725 1933893 128 4 10575 19565 767171 627328 128 8 17924 45390 955616 1000121 128 16 7466 66110 576780 1266785 128 32 30166 73314 1254941 1391557 128 64 18382 96389 1705404 1727352 128 128 21909 157264 1967960 1911894 256 4 16456 27846 699594 597916 256 8 22145 42348 1040643 948698 256 16 30921 65222 738065 1262029 256 32 21955 77482 1163562 1071806 256 64 35378 113266 1855098 333273 256 128 29166 147313 1619994 1570244 256 256 46218 176433 1790149 2152625 512 4 17814 19547 699322 308068 512 8 30245 26086 947779 955368 512 16 26531 75685 626672 1264113 512 32 35985 78467 1619757 1169140 512 64 56245 121211 1902438 1527582 512 128 45840 160657 1406520 1630828 512 256 59604 132097 1954379 1848401 512 512 54713 153426 1990612 1970519 1024 4 24028 29844 608110 741431 1024 8 38125 49946 1005892 944612 1024 16 42077 66735 1276817 726261 1024 32 34517 91337 1378002 1400926 1024 64 61137 135540 1341839 1452078 1024 128 65872 163737 890553 1544504 1024 256 75029 179055 1607514 1732676 1024 512 72588 153157 1582636 1837965 2048 4 25663 29616 745278 688858 2048 8 40615 52414 1052455 1071223 2048 16 59340 78123 1356204 1075111 2048 32 80361 69044 1173679 1125839 2048 64 94779 133681 1278491 1497076 2048 128 90990 132522 1524983 1603555 2048 256 79312 163933 1750616 490634 2048 512 104827 187373 1611376 1577638 4096 4 21389 27905 706327 625431 4096 8 40725 53899 1085629 903594 4096 16 63532 75514 1274867 1209696 4096 32 84873 112154 1187208 1245386 4096 64 97925 136862 1457180 1532848 4096 128 117002 160779 1172222 1566390 4096 256 132966 150267 1469771 1715961 4096 512 120555 144836 1691130 1488361 8192 4 26756 28188 801808 729726 8192 8 44615 48886 1034719 988177 8192 16 56113 75624 1167633 1247820 8192 32 84000 99213 1265980 1183642 8192 64 83341 119137 1624742 1638065 8192 128 100523 154216 1293771 1522106 8192 256 116585 140120 1748515 1587875 8192 512 115399 185477 1804058 1745584 16384 4 26176 28437 624894 792879 16384 8 40855 47532 1065272 764213 16384 16 62583 70364 1198543 1142453 16384 32 96120 86290 1049043 1449019 16384 64 102002 115869 1163301 919621 16384 128 121479 152525 1768758 1724808 16384 256 124095 170524 1740182 1504636 16384 512 131724 172073 1838215 1793361 32768 4 27116 29332 692008 675349 32768 8 45593 49976 1110781 1122878 32768 16 64379 78981 1156496 1223508 32768 32 94143 103665 1506084 1357236 32768 64 114478 144061 1413387 1517324 32768 128 126101 144977 1509558 1692998 32768 256 129483 169558 1741038 1743356 32768 512 129782 170149 1815195 1830303 65536 4 26922 28943 779004 821355 65536 8 43886 50409 1097497 1105197 65536 16 67212 76416 1335371 1277724 65536 32 88322 108400 1476561 1376979 65536 64 100436 121158 1429884 1350699 65536 128