From: Andi Kleen <andi@firstfloor.org>
To: Larry Bassel <lbassel@codeaurora.org>
Cc: linux-mm@kvack.org, vgandhi@codeaurora.org
Subject: Re: RFC -- new zone type
Date: Thu, 29 Sep 2011 13:19:32 -0700 [thread overview]
Message-ID: <m2aa9nhzjf.fsf@firstfloor.org> (raw)
In-Reply-To: <20110928180909.GA7007@labbmf-linux.qualcomm.com> (Larry Bassel's message of "Wed, 28 Sep 2011 11:09:09 -0700")
Larry Bassel <lbassel@codeaurora.org> writes:
>
> It was suggested to me that a new zone type which would be similar
> to the "movable zone" but is only allowed to contain pages
> that can be discarded (such as text) could solve this problem,
This may not actually be a win because if the text pages are needed
afterwards the act of rereading them from disk would likely take longer
than the copying.
The so you many not get latency before, but after.
Essentially robbing Peter to pay Paul.
If the goal is to just spread the latency over a longer time
I'm sure there are better ways to do that than to add a new zone.
-Andi
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next prev parent reply other threads:[~2011-09-29 20:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-28 18:09 Larry Bassel
2011-09-29 6:07 ` Sameer Pramod Niphadkar
2011-09-29 16:38 ` [Xen-devel] " Dan Magenheimer
2011-09-29 17:00 ` Larry Bassel
2011-10-05 16:56 ` Larry Bassel
2011-10-05 19:43 ` Dan Magenheimer
2011-10-06 23:03 ` Larry Bassel
2011-10-07 15:23 ` Dan Magenheimer
2011-10-07 16:01 ` Seth Jennings
2011-10-07 17:19 ` Larry Bassel
2011-10-12 22:20 ` Dan Magenheimer
2011-09-29 20:19 ` Andi Kleen [this message]
2011-09-30 17:01 ` Larry Bassel
[not found] <20110928180909.GA7007@labbmf-linux.qualcomm.comCAOFJiu1_HaboUMqtjowA2xKNmGviDE55GUV4OD1vN2hXUf4-kQ@mail.gmail.com>
[not found] ` <c2d9add1-0095-4319-8936-db1b156559bf@default20111005165643.GE7007@labbmf-linux.qualcomm.com>
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