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: Fri Jan 17 11:23:06 2025 Auto Mode Machine = Linux oleg306-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-oleg306-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 17080 23452 789967 484710 64 8 20427 56289 1033216 1066042 64 16 22898 47655 1143223 1017549 64 32 29238 110385 725882 1183548 64 64 33108 100771 1828508 2052169 128 4 25267 33630 656477 684081 128 8 38521 61625 1424795 1015251 128 16 40920 88144 1209698 1749872 128 32 59363 114183 1436229 1391557 128 64 50553 106844 1359835 2175277 128 128 63551 179327 1145188 1802755 256 4 23226 34482 682691 545654 256 8 34119 53124 1588832 457143 256 16 65420 77387 1243036 1219045 256 32 58620 137927 1778290 1248819 256 64 92717 176549 1591186 1588832 256 128 55846 212294 1855098 1398455 256 256 96787 222039 2000242 2509882 512 4 25846 35381 749608 717069 512 8 48571 62645 1007827 969603 512 16 63070 104430 1368865 964378 512 32 80073 137264 1741948 1547395 512 64 97693 148791 1506154 1551867 512 128 129196 197910 1718254 1753325 512 256 102545 171636 1924603 1803387 512 512 99513 220304 2169601 1902438 1024 4 30112 31092 746846 815943 1024 8 50173 58577 990352 636781 1024 16 62369 90876 1363565 1523683 1024 32 96821 127504 1432225 803728 1024 64 81529 163084 1882266 1544504 1024 128 124420 197990 1670669 1517224 1024 256 97228 210746 554990 1889720 1024 512 118407 289422 1932227 1999700 2048 4 29245 34108 826129 811764 2048 8 48172 65057 1007403 1170959 2048 16 80785 95795 1397008 1269797 2048 32 104554 146980 1463909 1479797 2048 64 116469 172302 1356418 1744572 2048 128 123151 167717 1759581 1670281 2048 256 150213 203901 1833573 1930406 2048 512 132299 227145 1715309 1617749 4096 4 29461 33920 777939 784941 4096 8 50935 56638 1096997 1043873 4096 16 70813 91840 1301918 1263057 4096 32 102995 133573 1397895 1619702 4096 64 130725 175913 1238206 1514204 4096 128 157976 215646 1703877 1501499 4096 256 159482 221945 1675953 1579060 4096 512 158404 219215 1788674 1917437 8192 4 30818 34109 843663 742434 8192 8 51730 56087 1099026 1157875 8192 16 81888 95804 1232821 1417258 8192 32 108952 123615 1407562 835661 8192 64 137743 175993 877378 1553838 8192 128 150915 168872 1767039 1792481 8192 256 166173 225222 1917095 1861024 8192 512 151118 212779 1772783 1778196 16384 4 30722 35328 535249 538132 16384 8 52544 58141 1148371 1190797 16384 16 82687 96677 1489052 1431810 16384 32 81407 143056 1460351 1660821 16384 64 135754 156343 1524801 1404651 16384 128 151790 194256 1923901 1836152 16384 256 163061 202159 1852336 1786879 16384 512 165344 220802 1815391 1879542 32768 4