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Date: Thu, 23 Mar 2006 06:31:39 -0800
From: Luigi Rizzo <rizzo@icir.org>
To: Paolo Pisati <p.pisati@oltrelinux.com>
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	<20060323001555.GA1811@tin.it> <20060323142518.GA1308@tin.it>
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	from p.pisati@oltrelinux.com on Thu, Mar 23, 2006 at 03:25:18PM
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Cc: current@freebsd.org
Subject: Re: interesting(?) data on network interrupt servicing
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On Thu, Mar 23, 2006 at 03:25:18PM +0100, Paolo Pisati wrote:
> On Thu, Mar 23, 2006 at 01:15:55AM +0100, 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
> 
> ok, i updated my CURRENT and rerun the tests (and while here 
> i disabled SMP):
> 
> phk's optimization to cpu ticks calculation shaved 4k ticks,

this makes it a very good candidate for MFC when 6.1 is out ?

> but interrupt masking overhead it's still there.

and this needs a bit of investigation instead...

cheers
luigi