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
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
