Re: Q:Howto benchmark preemptible kernel ?

[szonyi calin]

--- Andrew Morton <[e-mail]> wrote:

> 
> None of these patches make any significant
> difference
> to throughput of anything, really.
> 

Shell scripts and related tools (i.e. make) run
faster.

> If you have a particular latency-sensitive
> application then
> that's the thing which you should be testing with.
> 

Gcc seems to be a "latency-sensitive application"
because it runs faster (but it could be the mm
improvements in kernel 2.4 -- i have't use a
non-preemptible kernel from a long time )

> There's a modified version of Mark Hahn's `realfeel'
> app in 
> http://www.uow.edu.au/~andrewm/linux/amlat.tar.gz
> which I find to be a convenient way of
> quantitatively
> determining latencies.  There are some grubby
> scripts
> in there which create graphical output too.
> 
>  

I'll give it a try. 
Thanks

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