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From: Ingo Molnar <mingo@elte.hu>
To: Jesper Juhl <jesper.juhl@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@osdl.org>
Subject: Re: [RFC][PATCH] Reduce number of pointer derefs in various files (kernel/exit.c used as example)
Date: Tue, 6 Dec 2005 23:15:28 +0100	[thread overview]
Message-ID: <20051206221528.GA12358@elte.hu> (raw)
In-Reply-To: <200512062302.06933.jesper.juhl@gmail.com>


* Jesper Juhl <jesper.juhl@gmail.com> wrote:

> Ohh, and before I forget, besides the fact that this should speed 
> things up a little bit it also has the added benefit of reducing the 
> size of the generated code. The original kernel/exit.o file was 19604 
> bytes in size, the patched one is 19508 bytes in size.

nice. Just to underline your point, on x86, with gcc 4.0.2, i'm getting 
this with your patch:

   text    data     bss     dec     hex filename
  11077       0       0   11077    2b45 exit.o.orig
  10997       0       0   10997    2af5 exit.o

so 80 bytes shaved off. I think such patches also increase readability.

Acked-by: Ingo Molnar <mingo@elte.hu>

	Ingo

  reply	other threads:[~2005-12-06 22:15 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-06 22:02 [RFC][PATCH] Reduce number of pointer derefs in various files (kernel/exit.c used as example) Jesper Juhl
2005-12-06 22:15 ` Ingo Molnar [this message]
2005-12-09  1:46   ` Matt Mackall
2005-12-09  8:14     ` Oliver Neukum
2005-12-09 18:22       ` Matt Mackall
2005-12-09 10:29     ` Ingo Molnar
2005-12-09 18:34       ` Matt Mackall

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