Re: [RFC] Parallelize IO for e2fsck

Zan Lynx
2008-01-25T00:36:18Z

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On Thu, 2008-01-24 at 18:40 -0500, Theodore Tso wrote:
> On Fri, Jan 25, 2008 at 01:08:09AM +0200, Adrian Bunk wrote:
> > In practice, there is a small number of programs that are both the
> > common memory hogs and should be able to reduce their memory consumption
> > by 10% or 20% without big problems when requested (e.g. Java VMs,
> > Firefox and databases come into my mind).
>
> I agree, it's only a few processes where this makes sense. But for
> those that do, it would be useful if they could register with the
> kernel that would like to know, (just before the system starts
> ejecting cached data, just before swapping, etc.) and at what
> frequency. And presumably, if the kernel notices that a process is
> responding to such requests with memory actually getting released back
> to the system, that process could get "rewarded" by having the OOM
> killer less likely to target that particular thread.

Have y'all been following the /dev/mem_notify patches?
http://article.gmane.org/gmane.linux.kernel/628653

--
Zan Lynx <zlynx@acm.org>

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