Re: [IDEA] Poor man's UPS

From: Avi Kivity
Date: Mon May 22 2006 - 04:19:17 EST

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

error compiling committee.c: too many arguments to function

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