From: Christoph Lameter <clameter@sgi.com>
To: Nick Piggin <npiggin@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>,
linux-mm@kvack.org, Pekka J Enberg <penberg@cs.helsinki.fi>
Subject: Re: SLUB tbench regression due to page allocator deficiency
Date: Mon, 11 Feb 2008 14:03:31 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0802111401320.27683@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20080210232401.GA5621@wotan.suse.de>
On Mon, 11 Feb 2008, Nick Piggin wrote:
> OK, that's easy... You did it with an SMP kernel, right? (I only have a
> 8p NUMA, but I should be able to turn on cacheline interleaving and
> run an SMP kernel on it).
I did a test with your patchset and got
Throughput 2165.97 MB/sec 8 procs
So that is a 1% improvement against upstream but still 3-4% off my patch.
Earlier numbers:
SLAB 2223.32 MB/sec
SLUB unmodified 2144.36 MB/sec
SLUB+patch 2245.56 MB/sec (stats still active so this isnt optimal yet)
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next prev parent reply other threads:[~2008-02-11 22:03 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-09 21:45 SLUB tbench regression due to page allocator deficiency Christoph Lameter
2008-02-09 22:35 ` Andrew Morton
2008-02-10 0:19 ` Christoph Lameter
2008-02-10 2:45 ` Nick Piggin
2008-02-10 3:36 ` Christoph Lameter
2008-02-10 3:39 ` Christoph Lameter
2008-02-10 23:24 ` Nick Piggin
2008-02-11 19:14 ` Christoph Lameter
2008-02-11 22:03 ` Christoph Lameter [this message]
2008-02-11 7:18 ` Nick Piggin
2008-02-11 19:21 ` Christoph Lameter
2008-02-11 23:40 ` Nick Piggin
2008-02-11 23:42 ` Christoph Lameter
2008-02-11 23:56 ` Nick Piggin
2008-02-12 0:08 ` Christoph Lameter
2008-02-12 6:06 ` Fastpath prototype? Christoph Lameter
2008-02-12 10:40 ` Andi Kleen
2008-02-12 20:10 ` Christoph Lameter
2008-02-12 22:31 ` Christoph Lameter
2008-02-13 11:38 ` Andi Kleen
2008-02-13 20:09 ` Christoph Lameter
2008-02-13 18:33 ` SLUB tbench regression due to page allocator deficiency Paul Jackson
2008-02-11 13:50 ` Mel Gorman
2008-02-13 11:15 ` Mel Gorman
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