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Date: Sat, 9 Jul 2005 20:35:59 -0700
From: Chris Wedgwood <cw@f00f.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>,
       Arjan van de Ven <arjanv@infradead.org>
Subject: Re: [patch] compress the stack layout of do_page_fault(), x86
Message-ID: <20050710033559.GA31057@taniwha.stupidest.org>
References: <20050709144116.GA9444@elte.hu>
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On Sat, Jul 09, 2005 at 04:41:16PM +0200, Ingo Molnar wrote:

> this patch pushes the creation of a rare signal frame (SIGBUS or
> SIGSEGV) into a separate function, thus saving stackspace in the
> main do_page_fault() stackframe. The effect is 132 bytes less of
> stack used by the typical do_page_fault() invocation - resulting in
> a denser cache-layout.

does the benefit actually show up anywhere?