From: Pekka J Enberg <penberg@cs.helsinki.fi>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
sct@redhat.com, adilger@clusterfs.com, clameter@sgi.com
Subject: Re: [RFC/PATCH] ext3: remove inode constructor
Date: Sat, 5 May 2007 12:08:55 +0300 (EEST) [thread overview]
Message-ID: <Pine.LNX.4.64.0705051206500.20143@sbz-30.cs.Helsinki.FI> (raw)
In-Reply-To: <20070505020202.8edd0110.akpm@linux-foundation.org>
On Sat, 5 May 2007, Andrew Morton wrote:
> I doubt if this is measurable, really. It'll be something like the
> difference between an L1 hit and an L2 hit in amongst all the other stuff
> we do on a per-inode basis.
The cache effects are probably not easily measurable but I was worried
about CPU time. The slab constructors and destructors were originally
designed to reduce CPU time spent on initializing objects. But I don't
think that's relevant anymore on todays CPUs.
Pekka
prev parent reply other threads:[~2007-05-05 9:08 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-04 10:14 [RFC/PATCH] ext3: remove inode constructor Pekka J Enberg
2007-05-04 16:08 ` Christoph Lameter
2007-05-05 9:21 ` Pekka J Enberg
2007-05-04 20:02 ` Andrew Morton
2007-05-05 8:58 ` Pekka J Enberg
2007-05-05 9:02 ` Andrew Morton
2007-05-05 9:08 ` Pekka J Enberg [this message]
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