linux-kernel - Re: [PATCH v2 4/6] mm: introduce common page state for ballooned memory

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Message-ID: <54144EAC.8030101@oracle.com>
Date:	Sat, 13 Sep 2014 10:03:24 -0400
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Konstantin Khlebnikov <koct9i@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	Konstantin Khlebnikov <k.khlebnikov@...sung.com>,
	Rafael Aquini <aquini@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Andrey Ryabinin <ryabinin.a.a@...il.com>
Subject: Re: [PATCH v2 4/6] mm: introduce common page state for ballooned
 memory

On 09/13/2014 01:26 AM, Konstantin Khlebnikov wrote:
>> Did we really need to put the BalloonPages count into per-zone vmstat,
>> > global vmstat and /proc/meminfo?  Seems a bit overkillish - why so
>> > important?
> Balloon grabs random pages, their distribution among numa nodes might
> be important.
> But I know nobody who uses numa-aware vm together with ballooning.

*cough*. me?

Obviously there's no need to keep that per-zone vmstat just for me, but
right now NUMA on KVM works just fine and does a good job of catching
NUMA issues without having to run on actual metal.


Thanks,
Sasha
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