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: Sun Feb 2 02:09:19 2025 Auto Mode Machine = Linux oleg350-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-oleg350-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 14529 22439 481234 303383 64 8 18620 44261 603489 480373 64 16 19201 74590 746056 524487 64 32 22214 86152 1336792 1210227 64 64 28933 127473 1892980 1991276 128 4 18058 26122 436904 352785 128 8 24820 44632 847059 466923 128 16 32208 69302 1032829 1000121 128 32 40620 88449 985435 1598754 128 64 43039 100315 1229084 1185654 128 128 37262 166430 2098744 1440082 256 4 20325 29137 485020 378770 256 8 32736 43769 598249 490336 256 16 48430 78842 984356 1019886 256 32 57734 115421 1184092 1430119 256 64 59982 148413 1266495 1254656 256 128 76620 142845 1842366 1610276 256 256 77600 217277 1894373 1907837 512 4 25087 28437 442889 484890 512 8 38277 50558 639930 538377 512 16 47815 73341 876951 929322 512 32 65498 121644 1077618 1506154 512 64 81126 168538 1434711 1164070 512 128 93292 189208 1652157 1917728 512 256 106888 165754 2049505 2228129 512 512 103499 204234 1772135 1645826 1024 4 24920 27220 416590 412074 1024 8 41009 51631 626288 571762 1024 16 62965 63288 1042770 1093756 1024 32 78461 111569 928279 1177088 1024 64 81404 149183 1597945 1389594 1024 128 109905 189065 1516688 1389145 1024 256 129145 202451 1932227 1723636 1024 512 132178 208252 1885572 2024203 2048 4 23747 28312 405859 441373 2048 8 42677 50079 611696 654082 2048 16 66662 77808 1013824 954351 2048 32 93086 109360 1314489 1257897 2048 64 111340 131314 1563282 1395193 2048 128 135781 173924 1574169 1346425 2048 256 146546 210786 1718397 1805819 2048 512 151122 200176 1728424 1626633 4096 4 25416 26787 412315 423704 4096 8 44452 44717 679615 699682 4096 16 68483 78814 926947 832325 4096 32 91719 101923 1193808 1207570 4096 64 121581 140563 1583864 1680050 4096 128 122155 167752 1482453 1490427 4096 256 152875 208047 1469142 1586350 4096 512 172347 188727 1650830 1591346 8192 4 25258 27359 433852 393240 8192 8 45266 48599 780711 635634 8192 16 68097 76295 900299 926992 8192 32 92863 110058 1344498 1229821 8192 64 120857 142526 1323625 1302797 8192 128 137056 166836 1623821 1495930 8192 256 139542 194579 1696374 1643943 8192 512 156234 183887 1520691 1828929 16384 4 24961 27050 426522 405714 16384 8 42995 48315 661312 717525 16384 16 64156 75714 1001102 923204 16384 32 95103 112599 1220230 1346363 16384 64 112176 131521 1297847 1375991 16384 128 121997 162127 1500235 1512685 16384 256 150983 175577 1703642 1646140 16384 512 142182 174364 1496249 1511720 32768 4 24042 27311 418028 458679 32768 8