From: Pavel Machek <pavel@suse.cz>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
nigel@nigel.suspend2.net, "Rafael J. Wysocki" <rjw@sisk.pl>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Kexec Mailing List <kexec@lists.infradead.org>
Subject: Re: [PATCH] kexec based hibernation: a prototype of kexec multi-stage load
Date: Fri, 16 May 2008 13:58:33 +0200 [thread overview]
Message-ID: <20080516115833.GB22264@elf.ucw.cz> (raw)
In-Reply-To: <20080513053408.GA5870@redhat.com>
Hi!
> > During loading, a hash table mapped from destination page to source
> > page is used instead of original linear mapping
> > implementation. Because the hibernated image may be very large (up to
> > near the size of physical memory), it is very time-consuming to search
> > a source page given the destination page, which is used to check
> > whether an newly allocated page is in the range of allocated
> > destination pages.
>
> This seems to be an optimization of kexec so that it becomes efficient
> in loading large images (containing large number of segments). Probably
> this can be a separate patch.
>
> IMHO, we can just first write a minimal patch where one can just switch
> between kernels. Once that patch is upstream, we can enhance
Yes, please.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
prev parent reply other threads:[~2008-05-16 11:57 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-12 6:40 Huang, Ying
2008-05-13 5:34 ` Vivek Goyal
2008-05-14 1:57 ` Huang, Ying
2008-05-14 2:56 ` Vivek Goyal
2008-05-14 3:37 ` Huang, Ying
2008-05-14 21:43 ` Eric W. Biederman
2008-05-15 2:40 ` Huang, Ying
2008-05-15 4:57 ` Huang, Ying
2008-05-15 18:39 ` Eric W. Biederman
2008-05-16 1:41 ` Huang, Ying
2008-05-16 2:25 ` Eric W. Biederman
2008-05-16 2:56 ` Huang, Ying
2008-05-16 3:27 ` Vivek Goyal
2008-05-16 13:40 ` Vivek Goyal
2008-05-18 1:59 ` Eric W. Biederman
2008-05-16 3:33 ` Eric W. Biederman
2008-05-16 2:00 ` Vivek Goyal
2008-05-16 2:19 ` Huang, Ying
2008-05-16 2:55 ` Eric W. Biederman
2008-05-16 4:52 ` Huang, Ying
2008-05-16 13:36 ` Vivek Goyal
2008-05-16 11:58 ` Pavel Machek [this message]
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