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Date: Wed, 22 Mar 2006 18:16:03 -0800
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To: Paolo Pisati <p.pisati@oltrelinux.com>
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Cc: Luigi Rizzo <rizzo@icir.org>, current@freebsd.org
Subject: Re: interesting(?) data on network interrupt servicing
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Paolo Pisati wrote:

>On Wed, Mar 22, 2006 at 12:29:06PM -0800, Luigi Rizzo wrote:
>  
>
>>Paolo should follow up in the next days with graphs and more data.
>>    
>>
>
>Here are graphs and data:
>
>http://mercurio.sm.dsi.unimi.it/~pisati/
>
>and here is a tarball with all images, data and patches:
>
>http://mercurio.sm.dsi.unimi.it/~pisati/interrupt.tgz
>
>  
>
Interesting that the timespent actually in the driver is similar. jus 
that there is a constant extra 10000
units of overhead for every interrupt at the lower levels before it gets 
to the driver..