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@xxxxxxx>
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