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From: Avi Kivity <avi@argo.co.il>
To: Michael Buesch <mb@bu3sch.de>
Cc: Pau Garcia i Quiles <pgquiles@elpauer.org>, linux-kernel@vger.kernel.org
Subject: Re: [IDEA] Poor man's UPS
Date: Mon, 22 May 2006 11:19:48 +0300	[thread overview]
Message-ID: <44717424.4020705@argo.co.il> (raw)
In-Reply-To: <200605212146.30342.mb@bu3sch.de>

Michael Buesch wrote:
>>  > The "continuous hibernation" is some kind of memory snapshots taken, say, 
>>  > every 5 minutes. The next time your system starts after a crash, it'd say "oh 
>>     
>
> You really want a system, which freezes for 10-20 seconds every 5 minutes,
> and thaws again when the image is written?
>   

The snapshot could be taken in the background, by marking all pages 
read-only, starting a thread to write them to disk, and continuing 
normal processing.

Such systems have been implemented in the past, see for example 
http://www.eros-os.org/.

-- 
error compiling committee.c: too many arguments to function


  reply	other threads:[~2006-05-22  8:19 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-21 19:31 [IDEA] Poor man's UPS Pau Garcia i Quiles
2006-05-21 19:38 ` Dave Jones
2006-05-21 19:46   ` Michael Buesch
2006-05-22  8:19     ` Avi Kivity [this message]
2006-05-22 10:54       ` Jan Engelhardt
2006-05-21 22:40 ` Christian Trefzer
2006-05-22 13:04   ` Jan Knutar
2006-05-22 13:29     ` linux-os (Dick Johnson)
2006-05-22 15:25       ` Christian Trefzer
2006-05-22 15:54         ` linux-os (Dick Johnson)
2006-05-22 19:34           ` Christian Trefzer
2006-05-22 15:13     ` Christian Trefzer
2006-05-22 15:40       ` Alan Cox
2006-05-22 15:48         ` Christian Trefzer
2006-05-22 16:15           ` Matthias Schniedermeyer
2006-05-22 19:40             ` Christian Trefzer
2006-05-22 19:45               ` Avi Kivity
2006-05-23  2:02                 ` Martin J. Bligh
2006-05-22 19:46               ` Nuri Jawad
2006-05-22 22:40                 ` Christian Trefzer
2006-05-22 17:05           ` Jeff V. Merkey
2006-05-21 23:02 ` Neil Brown
2006-05-22  0:08   ` Chris Wedgwood
2006-05-22  0:23     ` Neil Brown
2006-05-22  1:29       ` Björn Steinbrink
2006-05-22  1:44         ` Neil Brown
2006-05-22  9:29 ` Pavel Machek

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