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 May 10 08:14:37 2024 Auto Mode Machine = Linux oleg457-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-oleg457-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 20076 35164 571375 528618 64 8 31496 53241 524487 695778 64 16 33988 79896 831569 1183548 64 32 39905 99834 1124074 1562436 64 64 44481 191629 2006158 2067979 128 4 25769 37197 563463 538051 128 8 38187 61393 805138 800337 128 16 49808 97051 1254941 1359835 128 32 53399 143979 1281909 1727352 128 64 64451 185204 1802755 2066432 128 128 73940 216235 1939522 1939522 256 4 28609 38345 278546 287034 256 8 34930 31034 521283 425277 256 16 62380 105436 1016025 1036624 256 32 69751 132974 1453348 1036624 256 64 109344 180922 1842366 2097948 256 128 111978 244265 1985448 2131261 256 256 104492 278908 1911233 2030503 512 4 29880 32970 538918 417245 512 8 41259 56674 685482 707152 512 16 59321 77869 751971 870552 512 32 113050 139358 1368865 1500891 512 64 109846 212352 1652157 1821745 512 128 125761 229485 1689859 1225169 512 256 143129 280834 1772135 2256220 512 512 152935 312007 1689859 1861217 1024 4 25216 25805 450121 471673 1024 8 35961 36983 418824 469302 1024 16 70811 72275 729344 875129 1024 32 91559 79733 1022902 1002839 1024 64 116813 152245 1580306 1831694 1024 128 167786 261079 1701108 1995982 1024 256 148471 237805 1681132 1517224 1024 512 125456 287638 1544504 1724328 2048 4 30185 32872 433445 506547 2048 8 45037 53598 836589 493736 2048 16 54999 65788 636206 513420 2048 32 94230 140024 789239 1119821 2048 64 74351 133444 1501525 1335124 2048 128 165548 243376 1539744 2011785 2048 256 142210 227404 1817281 2013672 2048 512 153961 196584 1616227 1572727 4096 4 28610 31858 492488 545621 4096 8 51106 56887 469949 480424 4096 16 83126 85769 997333 949908 4096 32 112508 107971 1261110 1315778 4096 64 152506 191438 1523199 1450903 4096 128 179578 216811 1487330 1610742 4096 256 153426 288981 1809968 1832557 4096 512 199833 285675 1429653 1284879 8192 4 30119 32548 430817 446214 8192 8 52235 56161 809878 620841 8192 16 80499 98313 960928 1026589 8192 32 108549 128942 1185357 1397259 8192 64 126488 115755 1189296 1236148 8192 128 150932 244159 1532356 1394877 8192 256 135917 181066 1214004 1366257 8192 512 167074 258095 1630525 1612617 16384 4 28450 36050 369116 388623 16384 8 56744 62773 675184 554409 16384 16 84093 95292 806975 840288 16384 32 102622 154226 1482179 1439699 16384 64 148595 113050 900863 1019534 16384 128 106787 146506 1194170 1235410 16384 256 144944 227970 1189745 1229091 16384 512 113992 155010 914907 992126 32768 4 35116 37372 446996 552496 32768 8 48247 67912 628594 693649 32768 16 85427 96424 981133 981161 32768 32 110413 131872 1260355 1221323 32768 64 118360 169349 1318677 1327709 32768 128 192831 222229 1650961 1714604 32768 256 177858 196658 963342 1084709 32768 512 174720 264855 1452538 1465018 65536 4