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Date: Wed, 26 Apr 2006 11:46:49 -0700
From: Andrew Morton <akpm@osdl.org>
To: Jens Axboe <axboe@suse.de>
Cc: linux-kernel@vger.kernel.org, npiggin@suse.de, linux-mm@kvack.org
Subject: Re: Lockless page cache test results
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Jens Axboe <axboe@suse.de> wrote:
>
> Are there cases where the lockless page cache performs worse than the
> current one?

Yeah - when human beings try to understand and maintain it.

The usual tradeoffs apply ;)