From: Dmitry Torokhov <dtor_core@ameritech.net>
To: Nigel Cunningham <ncunningham@cyclades.com>
Subject: Re: Which is simpler? (Was Re: [Suspend2-devel] Re: [ 00/10] [Suspend2] Modules support.)
Date: Mon, 20 Feb 2006 23:19:14 -0500
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On Monday 20 February 2006 21:57, Nigel Cunningham wrote:
> For the record, my thinking went: swsusp uses n (12?) bytes of meta data for 
> every page you save, where as using bitmaps makes that much closer to a 
> constant value (a small variable amount for recording where the image will be 
> stored in extents). 12 bytes per page is 3MB/1GB. If swsusp was to add 
> support for multiple swap partitions or writing to files, those requirements 
> might be closer to 5MB/GB. 

5MB/GB amounts to 0.5% overhead, I don't think you should be concerned here.
Much more important IMHO is that IIRC swsusp requires to be able to free 1/2
of the physical memory whuch is hard on low memory boxes.

-- 
Dmitry
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