No surprise on memory

[Carol Farlow Lerche]

After reading Belyakov's paper a few questions for the experts occurred to
me:

Since Linux allows multiple swap partitions, is there anything to be gained
by using two -- the first, a compcache swap file and the second on flash,
perhaps with Belyakov's MTD layer.  First question is whether Linux treats
the two swap files in an order, such that it only uses the flash swap if the
compcache is exhausted.  If so, instrument the I/O rate to swap, first to
study the relative sizing and second -- could the I/O rate to the flash swap
be a signal to prune activities?

On Thu, Dec 18, 2008 at 6:25 AM, Martin Langhoff
<martin.langhoff at gmail.com>wrote:

> On Thu, Dec 18, 2008 at 11:21 AM, Chris Ball <cjb at laptop.org> wrote:
> > And see this old mail from Mitch:
> >
> >   http://lists.laptop.org/pipermail/devel/2007-December/009030.html
> >
> > (Mitch doesn't mention how he feels about swapping in particular.
> > We could perhaps attempt to conduct some experimen
>
> Not sure if this particular patchseries ever made it, but Richard
> Purdie has been working on this area (marc lets you see all his posts
> to lkml, and it's all around mtd, compression, swap).
> http://marc.info/?l=linux-kernel&m=117285102508455&w=2
>
> Might also be worthwhile to ping him...
>
> cheers,
>
>
>
> martin-who's-reading-lkml-while-xs-reboots
> --
>  martin.langhoff at gmail.com
>  martin at laptop.org -- School Server Architect
>  - ask interesting questions
>  - don't get distracted with shiny stuff  - working code first
>  - http://wiki.laptop.org/go/User:Martinlanghoff
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