linux-kernel - Re: [PATCH] slub Discard slab page only when node partials

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Date:	Thu, 15 Sep 2011 09:32:43 +0800
From:	"Alex,Shi" <alex.shi@...el.com>
To:	Christoph Lameter <christoph@...eter.com>
Cc:	Christoph Lameter <cl@...ux.com>,
	"penberg@...nel.org" <penberg@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Huang, Ying" <ying.huang@...el.com>,
	"Li, Shaohua" <shaohua.li@...el.com>,
	"Chen, Tim C" <tim.c.chen@...el.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: [PATCH] slub Discard slab page only when node partials >
 minimum setting

On Tue, 2011-09-13 at 23:04 +0800, Christoph Lameter wrote:
> Sorry to be that late with a response but my email setup is screwed
> up.
> 
> I was more thinking about the number of slab pages in the partial
> caches rather than the size of the objects itself being an issue. I
> believe that was /sys/kernel/slab/*/cpu_partial.
> 
> That setting could be tuned further before merging. An increase there
> causes additional memory to be caught in the partial list. But it
> reduces the node lock pressure further.
> 

Yeah, I think so. The more cpu partial page, the quicker to getting
slabs. Maybe it's better to considerate the system memory size to set
them. Do you has some plan or suggestions on tunning? 




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