From: Rik van Riel <riel@redhat.com>
To: Andi Kleen <ak@suse.de>
Cc: Marcelo Tosatti <marcelo.tosatti@cyclades.com>,
linux-mm@kvack.org, sjiang@lanl.gov, rni@andrew.cmu.edu,
a.p.zijlstra@chello.nl
Subject: Re: Benchmarks to exploit LRU deficiencies
Date: Mon, 10 Oct 2005 21:04:00 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.63.0510102102260.20944@cuia.boston.redhat.com> (raw)
In-Reply-To: <200510110213.29937.ak@suse.de>
On Tue, 11 Oct 2005, Andi Kleen wrote:
> I think if you want to really see advantages you should not implement
> the advanced algorithms for the page cache,
I suspect the page cache really wants it too, especially
for database workloads.
> but for the inode/dentry cache. We seem to have far more problems in
> this area than with the standard page cache.
However, I agree with you that the inode/dentry cache
probably needs it more on file and web server workloads.
The page cache getting invalidated whole inodes at a
time, even when the inode is getting referenced frequently,
could be a performance problem on some systems.
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next prev parent reply other threads:[~2005-10-11 1:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-10 18:46 Marcelo Tosatti
2005-10-11 0:13 ` Andi Kleen
2005-10-10 20:26 ` Marcelo Tosatti
2005-10-11 0:41 ` Andi Kleen
2005-10-10 23:21 ` Marcelo Tosatti
2005-10-11 8:10 ` Andi Kleen
2005-10-11 1:04 ` Rik van Riel [this message]
2005-10-11 15:23 ` Christoph Lameter
2005-10-13 8:00 ` Magnus Damm
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