linux-kernel - Re: [RFC][PATCH 2/7] RSS controller core

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Message-ID: <45F3F581.9030503@sw.ru>
Date:	Sun, 11 Mar 2007 15:26:41 +0300
From:	Kirill Korotaev <dev@...ru>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Pavel Emelianov <xemul@...ru>, Paul Menage <menage@...gle.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Balbir Singh <balbir@...ibm.com>, devel@...nvz.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	containers@...ts.osdl.org
Subject: Re: [RFC][PATCH 2/7] RSS controller core

Andrew Morton wrote:
> On Tue, 06 Mar 2007 17:55:29 +0300
> Pavel Emelianov <xemul@...ru> wrote:
> 
> 
>>+struct rss_container {
>>+	struct res_counter res;
>>+	struct list_head page_list;
>>+	struct container_subsys_state css;
>>+};
>>+
>>+struct page_container {
>>+	struct page *page;
>>+	struct rss_container *cnt;
>>+	struct list_head list;
>>+};
> 
> 
> ah.  This looks good.  I'll find a hunk of time to go through this work
> and through Paul's patches.  It'd be good to get both patchsets lined
> up in -mm within a couple of weeks.  But..
> 
> We need to decide whether we want to do per-container memory limitation via
> these data structures, or whether we do it via a physical scan of some
> software zone, possibly based on Mel's patches.
i.e. a separate memzone for each container?
imho memzone approach is inconvinient for pages sharing and shares accounting.
it also makes memory management more strict, forbids overcommiting
per-container etc.
Maybe you have some ideas how we can decide on this?

Thanks,
Kirill

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