前面一篇博客对iozone（http://space.itpub.net/22664653/viewspace-690644）做了一些介绍，这里给出一个具体的例子。（ps 在做实验时，同事说服务器很卡。） root@client.example.com ~/iozone3_347/src/current # ./iozone -a n 68m -g 4g -i 0 -i 1 -i 5 -f /mnt/iotest -Rb ~/yang/iozone.xls                        Iozone: Performance Test of File I/O                 Version $Revision: 3.347 $                 Compiled for 64 bit mode.                 Build: linux         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.         Run began: Sat Mar 26 22:16:16 2011        Auto Mode         Using maximum file size of 4194304 kilobytes.         Excel chart generation enabled         Command line used: ./iozone -a -g 4g -i 0 -i 1 -i 5 -f /mnt/iotest -Rb /root/yang/iozone.xls n 68m         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  304761  614542  2203800  3057153                                  2561267                                                 64       8  306151  666414   842003  3738358                                   877797                                                 64      16  316623  633392   852702  3738358                                  3165299                                                 64      32  323491  666414   852702  3791156                                  3363612                                                 64      64  338589  673098  3363612  4018152                                  1017549                                                128       4  314547  621518  1278855  2843510                                  1152564                                                128       8  315286  656477  1373754  3785961                                  1377278                                                128      16  314547  681476  1269781  3359523                                  1471662                                                128      32  320748  659704  1391557  3560017                                  1471662                                                128      64  314547  688467  3560017  3657016                                  3199360                                                128     128  349797  666253  3560017  4135958                                  3785961                                                256       4  316010  635423  2783115  2975955                                  2247235                                                256       8  314898  672010  3465855  3605511                                  3009318                                                256      16  319584  668662  3410808  3499745                                  3557725                                                256      32  328984  693718  3454704  3557725                                  3454704                                                256      64  335145  682691  3465855  3756894                                  3605511                                                256     128  329894  684432  3770085  3823789                                  3705040                                                256     256  351607  689708  3823789  4054829                                  3770085                                                512       4  320003  638408  2894940  3029721                                  2207515                                                512       8  318390  672811  3459188  3634839                                  3046915                                                512      16  325041  674502  3366987  3604335                                  3012719                                                512      32  329935  677267  3459188  3762197                                  3325278                                                512      64  331156  683518  3580298  3788747                                  3459188                                                512     128  333729  686358  3659616  3970896                                  3822466                                                512     256  332489  695697  3710197  4061007                                  3849877                                                512     512  355084  707152  3459188  3684733                                  3762197                                               1024       4  327789  646948  2829721  2960401                                  2311849                                               1024       8  320190  677246  3358576  3618930                                  3112733                                               1024      16  327990  687216  3304314  3541348                                  3251778                                               1024      32  329348  684042  3369115  3606774                                  3483896                                               1024      64  336074  691865  3631168  3751699                                  3643490                                               1024     128  333646  692870  3696803  3908759                                  3863055                                               1024     256  335838  691420  3646583  4018473                                  3748425                                               1024     512  336733  719568  3461434  3751699                                  3849207                                               1024    1024  364264  718605  3229770  3877004                                  3709575                                               2048       4  328414  688858  2479196  2929912                                  2378293                                               2048       8  326318  684467  3121562  3494960                                  3020577                                               2048      16  332894  693754  3080148  3494960                                  3175804                                               2048      32  336282  700886  3245396  3530875                                  3334853                                               2048      64  339512  739886  2980747  3574960                                  3548378                                               2048     128  345535  720643  3271351  3630870                                  3828288                                               2048     256  345187  724411  3145567  3671217                                  3857514                                               2048     512  347942  722401  2879817  3353078                                  3744839                                               2048    1024  352743  756568  2612664  3087898                                  3205431                                               2048    2048  363705  805295  1954120  2178635                                  2070958                                               4096       4  345505  789377  1928630  2118929                                  1902573                                               4096       8  373379  810761  2122332  2285832                                  2230918                                               4096      16  386014  841952  2156972  2391139                                  2347359                                               4096      32  379290  899808  2084478  2356697                                  2412291                                               4096      64  394986  870183  2171696  2326065                                  2426601                                               4096     128  392307  885249  2200909  2429346                                  2420789                                               4096     256  389135  907173  2156972  2351536                                  3697135                                               4096     512  390426  899384  2128907  2234400                                  3530734                                               4096    1024  381691  881253  1926684  2073910                                  3022599                                               4096    2048  365064  833213  1473300  1530527                                  1685655                                               4096    4096  342448  776182  1167284  1152562                                  1129006                                               8192       4  341491  863400  1687377  1757908                                  1574487                                               8192       8  365533  914898  1892388  1922136                                  1842068                                               8192      16  375381  935906  1871669  1935235                                  1891034                                               8192      32  380052  930079  1846622  1869428                                  1892805                                               8192      64  377563  941832  1874528  1933058                                  1950838                                               8192     128  383805  962166  1897195  1953278                                  1967820                                               8192     256  385683  968321  1918059  1970077                                  1961641                                               8192     512  381983  957367  1894058  1950949                                  3701837                                               8192    1024  368410  891400  1717402  1795291                                  3208849                                               8192    2048  346533  775320  1355156  1373576                                  1866483                                               8192    4096  334982  730517  1080161  1078060                                  1078602                                               8192    8192  322596  720937   980032   989258                                   975137