From: Pavel Machek <pavel@ucw.cz>
To: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Avi Kivity <avi@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
jeremy@goop.org, hugh.dickins@tiscali.co.uk, ngupta@vflare.org,
JBeulich@novell.com, chris.mason@oracle.com,
kurt.hackel@oracle.com, dave.mccracken@oracle.com,
npiggin@suse.de, akpm@linux-foundation.org, riel@redhat.com
Subject: Re: Frontswap [PATCH 0/4] (was Transcendent Memory): overview
Date: Wed, 28 Apr 2010 07:55:39 +0200 [thread overview]
Message-ID: <20100428055538.GA1730@ucw.cz> (raw)
In-Reply-To: <ce808441-fae6-4a33-8335-f7702740097a@default>
Hi!
> > Seems frontswap is like a reverse balloon, where the balloon is in
> > hypervisor space instead of the guest space.
>
> That's a reasonable analogy. Frontswap serves nicely as an
> emergency safety valve when a guest has given up (too) much of
> its memory via ballooning but unexpectedly has an urgent need
> that can't be serviced quickly enough by the balloon driver.
wtf? So lets fix the ballooning driver instead?
There's no reason it could not be as fast as frontswap, right?
Actually I'd expect it to be faster -- it can deal with big chunks.
--
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next prev parent reply other threads:[~2010-04-29 5:20 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-22 13:42 Frontswap [PATCH 0/4] (was Transcendent Memory): overview Dan Magenheimer
2010-04-22 15:28 ` Avi Kivity
2010-04-22 15:48 ` Dan Magenheimer
2010-04-22 16:13 ` Avi Kivity
2010-04-22 20:15 ` Dan Magenheimer
2010-04-23 9:48 ` Avi Kivity
2010-04-23 13:47 ` Dan Magenheimer
2010-04-23 13:57 ` Avi Kivity
2010-04-23 14:43 ` Dan Magenheimer
2010-04-23 14:52 ` Avi Kivity
2010-04-23 15:00 ` Avi Kivity
2010-04-23 16:26 ` Dan Magenheimer
2010-04-24 18:25 ` Avi Kivity
[not found] ` <1c02a94a-a6aa-4cbb-a2e6-9d4647760e91@default4BD43033.7090706@redhat.com>
2010-04-25 0:41 ` Dan Magenheimer
2010-04-25 12:06 ` Avi Kivity
2010-04-25 13:12 ` Dan Magenheimer
2010-04-25 13:18 ` Avi Kivity
2010-04-28 5:55 ` Pavel Machek [this message]
2010-04-29 14:42 ` Dan Magenheimer
2010-04-29 18:59 ` Avi Kivity
2010-04-29 19:01 ` Avi Kivity
2010-04-29 18:53 ` Avi Kivity
2010-04-30 1:45 ` Dave Hansen
2010-04-30 7:13 ` Avi Kivity
2010-04-30 15:59 ` Dan Magenheimer
2010-04-30 16:08 ` Dave Hansen
2010-05-10 16:05 ` Martin Schwidefsky
2010-04-30 16:16 ` Avi Kivity
[not found] ` <4BDB18CE.2090608@goop.org4BDB2069.4000507@redhat.com>
[not found] ` <3a62a058-7976-48d7-acd2-8c6a8312f10f@default20100502071059.GF1790@ucw.cz>
2010-04-30 16:43 ` Dan Magenheimer
2010-04-30 17:10 ` Dave Hansen
2010-04-30 18:08 ` Avi Kivity
2010-04-30 17:52 ` Jeremy Fitzhardinge
2010-04-30 18:24 ` Avi Kivity
2010-04-30 18:59 ` Jeremy Fitzhardinge
2010-05-01 8:28 ` Avi Kivity
2010-05-01 17:10 ` Dan Magenheimer
2010-05-02 7:11 ` Pavel Machek
2010-05-02 15:05 ` Dan Magenheimer
2010-05-02 20:06 ` Pavel Machek
2010-05-02 21:05 ` Dan Magenheimer
2010-05-02 7:57 ` Nitin Gupta
2010-05-02 16:06 ` Dan Magenheimer
2010-05-02 16:48 ` Avi Kivity
2010-05-02 17:22 ` Dan Magenheimer
2010-05-03 9:39 ` Avi Kivity
2010-05-03 14:59 ` Dan Magenheimer
2010-05-02 15:35 ` Avi Kivity
2010-05-02 17:06 ` Dan Magenheimer
2010-05-03 8:46 ` Avi Kivity
2010-05-03 16:01 ` Dan Magenheimer
2010-05-03 19:32 ` Pavel Machek
2010-04-30 16:04 ` Dave Hansen
2010-04-23 15:56 ` Dan Magenheimer
2010-04-24 18:22 ` Avi Kivity
2010-04-25 0:30 ` Dan Magenheimer
2010-04-25 12:11 ` Avi Kivity
[not found] ` <c5062f3a-3232-4b21-b032-2ee1f2485ff0@default4BD44E74.2020506@redhat.com>
2010-04-25 13:37 ` Dan Magenheimer
2010-04-25 14:15 ` Avi Kivity
2010-04-25 15:29 ` Dan Magenheimer
2010-04-26 6:01 ` Avi Kivity
2010-04-26 12:45 ` Dan Magenheimer
2010-04-26 13:48 ` Avi Kivity
2010-04-27 12:56 ` Pavel Machek
2010-04-27 14:32 ` Dan Magenheimer
2010-04-29 13:02 ` Pavel Machek
2010-04-27 11:52 ` Valdis.Kletnieks
2010-04-27 0:49 ` Jeremy Fitzhardinge
2010-04-27 12:55 ` Pavel Machek
2010-04-27 14:43 ` Nitin Gupta
2010-04-29 13:04 ` Pavel Machek
2010-04-24 1:49 ` Nitin Gupta
2010-04-24 18:27 ` Avi Kivity
2010-04-25 3:11 ` Nitin Gupta
2010-04-25 12:16 ` Avi Kivity
2010-04-25 16:05 ` Nitin Gupta
2010-04-26 6:06 ` Avi Kivity
2010-04-26 12:50 ` Dan Magenheimer
2010-04-26 13:43 ` Avi Kivity
2010-04-27 8:29 ` Dan Magenheimer
2010-04-27 9:21 ` Avi Kivity
2010-04-26 13:47 ` Nitin Gupta
2010-04-23 16:35 ` Jiahua
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