linux-kernel - Re: [patch 51/52] fs: per-zone dentry and inode LRU

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Date:	Wed, 30 Jun 2010 20:09:37 +1000
From:	Dave Chinner <david@...morbit.com>
To:	npiggin@...e.de
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	John Stultz <johnstul@...ibm.com>,
	Frank Mayhar <fmayhar@...gle.com>
Subject: Re: [patch 51/52] fs: per-zone dentry and inode LRU

On Thu, Jun 24, 2010 at 01:03:03PM +1000, npiggin@...e.de wrote:
> Per-zone LRUs and shrinkers for dentry and inode caches.
> 
> Signed-off-by: Nick Piggin <npiggin@...e.de>

This destroys any notion we have of global LRU-ness of inode and
dentry caches, doesn't it? Can you outline in more detail what sort
of reclaim pattern this results in. e.g. is a workload running on
a single node now effectively limited to a dentry/icache size within
the local node because of local node slab allocation and per-zone
reclaim?

Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com
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