FS statistics on 2.6.0-test2

[Net Llama!]

On 08/08/03 06:20, Collins Richey wrote:

> Interesting article and lots of critiques at
> 
> 	http://kerneltrap.org/node/view/715
> 
> The following extract shows the basic differences.  This is German
> number notation with commas and periods reversed.
> 
>              reiser4       reiserfs       ext3           XFS         JFS
> copy     33.39,34%  39.55,32%  39.42,25%  43.50,32%  48.15,20%
> sync        1.54,00%   3.15,10%   9.05,00%    2.08,10%    3.05,10%
> recopy1  31.09,34%  75.15,13%  79.96, 9% 102.37,12% 108.39, 5%
> recopy2  33.15,33%  77.62,13%  98.84, 7% 108.00,12% 114.96, 5%
> sync      2.89, 3%   3.84, 1%   8.15, 0%   2.40, 2%   3.86, 0%
> du        2.05,42%   2.46,21%   3.31,11%   3.73,32%   2.42,17%
> delete    7.41,52%   5.22,58%   3.71,39%   8.75,56%  15.33, 7%
> tar      52.25,25%  90.83,12%  74.93,13% 157.61, 7% 135.86, 6%
> sync      6.77, 2%   4.19, 3%   1.67, 1%   0.95, 1%  38.18, 0%
> overall 171.28,30% 302.53,16% 319.71,11% 429.79,13% 470.88, 6%
> 
> In general, reiser4 looks to be a real winner (when it's out of
> development, of course), and my favorite EXT3 and everyone else's
> favorite XFS are among the slowest.

Its also worth noting that there have been quite a few discussions about 
this on the XFS list.  The developers there have already poked a few holes 
in the accuracy of these measurements, such as the fact that comparing 
anything on a 2.6.0-test kernel is pointless considering how much of a 
moving target it is, plus the distinct lack of information on the version 
of xfs userland tools in use.  Also, XFS in 2.6.x is not considered to be 
stable by the XFS developers, and in their words, "anyone using 2.6.0-test 
kernels for anything serious needs to have their head examined".

What would be far more telling would be a similar test on 2.4.21, with 
detailed information on the test environment.


-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
L. Friedman                       	       netllama at linux-sxs.org
Linux Step-by-step & TyGeMo: 		    http://netllama.ipfox.com

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