Re: Best Raid0 blocksize/filesystem (benchmarks included)

Roman Gaufman <[email protected]>
Newsgroups gmane.linux.gentoo.performance
Message-ID <[email protected]>
also posted here: http://forums.gentoo.org/viewtopic.php?p=1628006
 
Just out of interest, I ran a small benchmarks using bonnie++ with the
default configurations. The results are attached.

Just looking at the results, it seems ext3 is better than reiserfs in
most tests (speed and cpu utilization), only lacking in mass file
creation.
Is it really limiting to only be able to create 380 files per second
instead of 9500 per second? -- does emerge sync create more than 380
files *per second*?

Personally, seems the best middle ground is xfs as long as you accept
the risk of data loss incase of powerloss, but I guess thats a minor
risk for raid0 users :) -- seems xfs is also perfect for laptops, not
using too much ram, yet bringing CPU usage and disk access levels to
impressive values.

What is your experience? Should I maybe run some other tests for
better accuracy?

--
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bonnie++-raid.log (text/x-log, 5.6 KB)
  	             -------Sequential Output-------   --Sequential Input--   --Random-
Concurrency   1      -Per Chr-  --Block--  -Rewrite-   -Per Chr-  --Block--   --Seeks--
	       Size  K/sec %CP  K/sec %CP  K/sec %CP   K/sec %CP K/sec  %CP  /sec %CP
128-ext2       1G    512+  98   77837  60  30013+ 30   740  95   52214  38   407.6+ 4-
64-ext2        1G    507-  98   68492- 53+ 17624- 17+  759+ 97-  29357- 21   277.5  3
32-ext2        1G    511   98   79501  61  28752  29   747  96   59819  47   366.8  3
16-ext2        1G    510   98   74058  57  28161  29   735- 94+  60440+ 48   348.2  3
8-ext2         1G    511   98   80236+ 63- 28104  29   735- 94+  59630  49   297.5  3
4-ext2         1G    509   98   77059  60  27909  31-  749  96   58903  50   232.9- 2+

128-ext3       1G    225   98   75568  73  29389  32   738  97   50814  38   396.6  4
64-ext3        1G    225   98   73138  71  28328  30   736  97   61845  47   382.3  4
32-ext3        1G    226   98   73292  71  28244  30   715  94   60825  48   369.8  4
16-ext3        1G    225   98   75143  72  28068  31   715  94   60486  48   337.9  4
8-ext3         1G    225   98   74076  72  28284  31   714  94   58799  48   281.3  3
4-ext3         1G    225   98   73479  72  28215  33   722  95   58906  51   210.5  2

128-reiserfs   1G    176   98   75439  81  30115  35   746  96   54380  45   381.1  6
64-reiserfs    1G    175   98   74528  80  27779  32   739  95   56580  47   385.3  6
32-reiserfs    1G    176   98   73741  79  26898  31   549  71   49171  44   264.6  5
16-reiserfs    1G    176   98   75542  82  27284  32   761  98   56099  50   354.9  5
8-reiserfs     1G    175   98   75787  82  27160  33   738  95   55089  50   309.0  5
4-reiserfs     1G    175   98   74832  81  26501  34   742  95   54221  52   227.8  3

128-xfs        1G    357   98   77821  66  30394  33   600  95   51873  40   363.0  4
64-xfs         1G    355   98   77990  68  28763  31   589  94   65589  51   355.4  3
32-xfs         1G    265   73   76561  59  22639  24   574  92   16910  13   203.8  2
16-xfs         1G    359   98   77344  65  27710  30   597  95   60898  50   365.2  3
8-xfs          1G    357   98   78487  67  28719  32   608  97   62282  52   343.3  3
4-xfs          1G    357   98   76954  64  26227  31   591  94   58878  54   219.3  2

128-jfs        1G    226   98   32236  32  13629  14   736  97   33878  24   171.7  2
64-jfs         1G    226   98   31890  31  12969  13   732  96   33688  24   173.1  1
32-jfs         1G    221   97   31640  31  12702  13   732  96   34055  24   170.8  2
16-jfs         1G    226   98   31325  31  13389  13   743  98   34071  24   168.5  2
8-jfs          1G    226   98   32195  32  13444  14   735  97   34354  24   171.9  2
4-jfs          1G    226   98   31541  31  13701  14   724  95   33661  24   170.6  1




	             ------Sequential Create--------    ---------Random Create---------
	             -Create--  --Read---  -Delete--    -Create--  --Read---  -Delete--
	       files /sec  %CP  /sec  %CP  /sec  %CP    /sec  %CP  /sec  %CP  /sec  %CP
128-ext2       16    522   98   +++++ +++  +++++ +++    523   98   +++++ +++  1913  98
64-ext2        16    524   98   +++++ +++  +++++ +++    528   98   +++++ +++  1884  97
32-ext2        16    521   98   +++++ +++  +++++ +++    523   98   +++++ +++  1893  98
16-ext2        16    525   98   +++++ +++  +++++ +++    522   98   +++++ +++  1894  98
8-ext2         16    522   98   +++++ +++  +++++ +++    521   98   +++++ +++  1883  98
4-ext2         16    515   98   +++++ +++  +++++ +++    528   98   +++++ +++  1896  98

128-ext3       16    384   98   +++++ +++  +++++ +++    387   98   +++++ +++  1594  97
64-ext3        16    381   98   +++++ +++  +++++ +++    384   98   +++++ +++  1585  97
32-ext3        16    383   98   +++++ +++  +++++ +++    382   98   +++++ +++  1597  97
16-ext3        16    385   98   +++++ +++  +++++ +++    382   98   +++++ +++  1598  97
8-ext3         16    383   98   +++++ +++  +++++ +++    384   98   +++++ +++  1583  97
4-ext3         16    382   98   +++++ +++  +++++ +++    382   98   +++++ +++  1594  97

128-reiserfs   16    9525  98   +++++ +++  8470  95     8327  90   +++++ +++  7372  98
64-reiserfs    16    9401  97   +++++ +++  8832  98     8490  92   +++++ +++  7302  97
32-reiserfs    16    9470  97   +++++ +++  7903  88     8766  95   +++++ +++  7045  94
16-reiserfs    16    9499  97   +++++ +++  8836  98     8783  97   +++++ +++  7427  98
8-reiserfs     16    9434  98   +++++ +++  8771  98     8822  97   +++++ +++  7353  98
4-reiserfs     16    9404  98   +++++ +++  8696  98     8718  97   +++++ +++  7410  98

128-xfs        16    4291  87   +++++ +++  4129  66     3017  64   +++++ +++   804  15
64-xfs         16    3683  77   +++++ +++  4022  66     3466  76   +++++ +++  1460  30
32-xfs         16    3663  78   +++++ +++  4619  79     3475  79   +++++ +++  2800  60
16-xfs         16    4250  93   +++++ +++  5300  92     4022  92   +++++ +++  3580  78
8-xfs          16    3999  87   +++++ +++  5018  90     3831  87   +++++ +++  1794  40
4-xfs          16    3173  70   +++++ +++  4433  82     3146  75   +++++ +++  2479  56

128-jfs        16    385   98   +++++ +++  +++++ +++    386   98   +++++ +++  1573  96
64-jfs         16    384   98   +++++ +++  +++++ +++    386   98   +++++ +++  1592  96
32-jfs         16    380   97   +++++ +++  +++++ +++    387   98   +++++ +++  1588  96
16-jfs         16    386   98   +++++ +++  +++++ +++    381   96   +++++ +++  1578  95
8-jfs          16    385   98   +++++ +++  +++++ +++    386   98   +++++ +++  1587  96
4-jfs          16    386   98   +++++ +++  +++++ +++    386   98   +++++ +++  1587  95
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