From: Pavel Machek <pavel@suse.cz>
To: Nigel Cunningham <ncunningham@cyclades.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>, Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, nickpiggin@yahoo.com.au
Subject: Re: [PATCH -mm] swsusp: support creating bigger images (rev. 2)
Date: Fri, 12 May 2006 12:30:13 +0200 [thread overview]
Message-ID: <20060512103013.GG28232@elf.ucw.cz> (raw)
In-Reply-To: <200605120949.47046.ncunningham@cyclades.com>
> > Too much uncertainity for 10% speedup, I'm afraid. Yes, it was really
> > clever to get this fundamental change down to few hundred lines, but
> > design complexity remains. Could we drop that patch?
>
> Could you provide justification for your claim that the speedup is
> only 10%?
10% was number Rafael provided, IIRC.
> Please also remember that you are introducing complexity in other ways, with
> that swap prefetching code and so on. Any comparison in speed should include
> the time to fault back in pages that have been discarded.
Well, swap prefetching is useful for other workloads, too; so it gets
developed/tested outside swsusp.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2006-05-12 10:30 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-02 10:00 [PATCH -mm] swsusp: support creating bigger images Rafael J. Wysocki
2006-05-09 7:33 ` Andrew Morton
2006-05-09 10:19 ` Rafael J. Wysocki
2006-05-09 11:22 ` Pavel Machek
2006-05-09 12:18 ` Rafael J. Wysocki
2006-05-09 12:30 ` Hugh Dickins
2006-05-10 3:50 ` Nick Piggin
2006-05-10 22:26 ` Rafael J. Wysocki
2006-05-11 15:01 ` Hugh Dickins
2006-05-11 21:19 ` Rafael J. Wysocki
2006-05-09 22:15 ` [PATCH -mm] swsusp: support creating bigger images (rev. 2) Rafael J. Wysocki
2006-05-09 22:27 ` Andrew Morton
2006-05-10 22:58 ` Rafael J. Wysocki
2006-05-10 23:38 ` Andrew Morton
2006-05-11 0:11 ` Nigel Cunningham
2006-05-11 13:20 ` Rafael J. Wysocki
2006-05-11 23:45 ` Nigel Cunningham
2006-05-12 0:17 ` Nathan Scott
2006-05-12 10:09 ` Pavel Machek
2006-05-13 22:32 ` Rafael J. Wysocki
2006-05-11 13:15 ` Rafael J. Wysocki
2006-05-11 11:35 ` Pavel Machek
2006-05-11 12:10 ` Rafael J. Wysocki
2006-05-11 23:49 ` Nigel Cunningham
2006-05-12 10:30 ` Pavel Machek [this message]
2006-05-13 22:33 ` Rafael J. Wysocki
2006-05-15 9:48 ` Con Kolivas
2006-05-15 19:52 ` Rafael J. Wysocki
2006-05-15 23:50 ` Con Kolivas
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