linux-kernel - Re: [PATCH 0/9] Scalability requirements for sysv ipc

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Message-Id: <20080514132134.1A98.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Wed, 14 May 2008 13:22:52 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Nadia Derbey <Nadia.Derbey@...l.net>
Cc:	kosaki.motohiro@...fujitsu.com,
	KOSAKI Motohiro <m-kosaki@...es.dti.ne.jp>,
	manfred@...orfullife.com, paulmck@...ux.vnet.ibm.com,
	lnxninja@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	efault@....de, akpm@...ux-foundation.org
Subject: Re: [PATCH 0/9] Scalability requirements for sysv ipc - v3

> Well, looks like the description was not clear, sorry for that!
> 1st column: 2.6.25-rc3-mm1 with original ipc implementation
>                             (i.e. ipcs stored in an array)
> 2nd column: 2.6.25-rc3-mm1, with ipcs stored in an idr tree
>              actually, that's when the performance regression
>              had been introduced.
> 3rd column: 2.6.25-mm1, still with the same implementation
>              i.e. still with degraded performances.
> 4th column: 2.6.25-mm1 + rcu-based implementation of the idr,
>              which is the current patch series.
> 
> Hope this makes things more clear.

Oh, I see that your patchset has very nice performance result :)
Thanks!


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