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Bug#573912: linux-2.6: please enable ramzswap/compcache



On Sun, 2010-04-04 at 11:21 -0700, Vagrant Cascadian wrote:
> On Sun, Apr 04, 2010 at 07:16:36AM +0100, Ben Hutchings wrote:
> > On Thu, 2010-03-18 at 14:36 +1100, Trent W. Buck wrote:
> > > Vagrant Cascadian wrote:
> > > > Please consider setting CONFIG_RAMZSWAP (a.k.a. compcache), which
> > > > enables a ram based compressed swap device. i think it can be
> > > > enabled as a module, but i'm not sure.
> > > >
> > > > This feature is very useful to thin clients, embedded devices, or
> > > > other environments with limited ram and no conventional swap device
> > > > available.
> > > 
> > > This is also useful for Debian Live images generated using the
> > > live-helper and live-initramfs packages.  Using Sid's live-helper to
> > > build an Ubuntu 10.04 live image already results in a 25% ramzswap, so
> > > I guess Ubuntu have patched compcache into their default .32 kernel.
> > 
> > Would you like me to add this to 2.6.32 for squeeze, then?
> 
> if it's not too difficult, sure! i had thought it only made it upstream as
> recently as 2.6.33.

Indeed, but it seems trivial to backport.  Please test it when 2.6.32-11
is released.

Ben.

-- 
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.

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