linux-kernel - Re: [PATCH 00/13] Re: Scalability requirements for sysv ipc

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Message-Id: <1207931235.7157.0.camel@twins>
Date:	Fri, 11 Apr 2008 18:27:15 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Nadia.Derbey@...l.net
Cc:	efault@....de, manfred@...orfullife.com,
	linux-kernel@...r.kernel.org, paulmck@...ux.vnet.ibm.com,
	akpm@...ux-foundation.org, xemul@...nvz.org
Subject: Re: [PATCH 00/13] Re: Scalability requirements for sysv ipc

On Fri, 2008-04-11 at 18:17 +0200, Nadia.Derbey@...l.net wrote:
> 
> Here is finally the ipc ridr-based implementation I was talking about last
> week (see http://lkml.org/lkml/2008/4/4/208).
> I couldn't avoid much of the code duplication, but at least made things
> incremental.
> 
> Does somebody now a test suite that exists for the idr API, that I could
> run on this new api?
> 
> Mike, can you try to run it on your victim: I had such a hard time building
> this patch, that I couldn't re-run the test on my 8-core with this new
> version. So the last results I have are for 2.6.25-rc3-mm1.
> 
> Also, I think a careful review should be done to avoid introducing yet other
> problems :-(

Why duplicate the whole thing, when we converted the Radix tree to be
RCU safe we did it in-place. Is there a reason this is not done for idr?

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