From: Pekka Enberg <penberg@cs.helsinki.fi>
To: Christoph Lameter <clameter@engr.sgi.com>
Cc: akpm@osdl.org, linux-kernel@vger.kernel.org, clameter@sgi.com,
manfred@colorfullife.com, mark.fasheh@oracle.com,
alok.kataria@calsoftinc.com, kiran@scalex86.org
Subject: Re: [PATCH] slab: Don't scan cache_cache
Date: Sat, 25 Feb 2006 23:50:13 +0200 [thread overview]
Message-ID: <1140904214.11182.1.camel@localhost> (raw)
In-Reply-To: <Pine.LNX.4.64.0602240815010.20760@schroedinger.engr.sgi.com>
On Fri, 24 Feb 2006, Pekka J Enberg wrote:
> > From: Pekka Enberg <penberg@cs.helsinki.fi>
> >
> > The cache_cache object cache is used for bootstrapping, but the cache is
> > essentially static. It is unlikely that we ever have more than one page
> > allocated for it. As SLAB_NO_REAP is gone now, fix a regression by skipping
> > cache_cache explicitly in cache_reap().
On Fri, 2006-02-24 at 08:16 -0800, Christoph Lameter wrote:
> There are other essentially static caches as well. Could we have something
> more general?
>
> Are you really seeing any measurable regression?
I haven't measured it but it seems obvious enough that especially for
low end boxes. I don't think something more general is required because
other static caches should use kmalloc() instead.
Pekka
next prev parent reply other threads:[~2006-02-25 21:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-24 7:52 [PATCH] slab: Don't scan cache_cache Pekka J Enberg
2006-02-24 16:16 ` Christoph Lameter
2006-02-25 21:50 ` Pekka Enberg [this message]
2006-02-27 2:25 ` Ravikiran G Thirumalai
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