From: William Lee Irwin III <wli@holomorphy.com>
To: Andrew Morton <akpm@digeo.com>
Cc: Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.5.65-mm4
Date: Sun, 23 Mar 2003 23:27:59 -0800 [thread overview]
Message-ID: <20030324072759.GH30140@holomorphy.com> (raw)
In-Reply-To: <20030323231716.44d7e306.akpm@digeo.com>
On Sun, Mar 23, 2003 at 11:17:16PM -0800, Andrew Morton wrote:
> In the case of ext2 the codepath which needs to be locked is very small, and
> converting it to use a per-blockgroup spinlock was a big win on the 16-way
> numas, and perhaps 8-way x440's. On 4-way xeon and ppc64 the effects were
> very small indeed - 1.5% on xeon, zero on ppc64.
And also very large on 32x NUMA-Q.
-- wli
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prev parent reply other threads:[~2003-03-24 7:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-23 10:06 2.5.65-mm4 Andrew Morton
2003-03-23 17:55 ` 2.5.65-mm4 Alexander Hoogerhuis
2003-03-23 18:16 ` 2.5.65-mm4 Martin J. Bligh
2003-03-23 20:08 ` 2.5.65-mm4 Martin J. Bligh
2003-03-24 3:04 ` 2.5.65-mm4 Martin J. Bligh
2003-03-24 3:17 ` 2.5.65-mm4 Andrew Morton
2003-03-24 4:10 ` 2.5.65-mm4 Martin J. Bligh
2003-03-24 7:02 ` 2.5.65-mm4 Ingo Molnar
2003-03-24 7:17 ` 2.5.65-mm4 Andrew Morton
2003-03-24 7:27 ` William Lee Irwin III [this message]
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