From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Morton <akpm@osdl.org>
Date: Sun, 22 Jan 2006 20:31:50 +0000
Subject: Re: [PATCH] disable per cpu intr in /proc/stat
Message-Id: <20060122123150.3a289ac3.akpm@osdl.org>
List-Id: <linux-ia64.vger.kernel.org>
References: <20060122202204.GA26295@suse.de>
In-Reply-To: <20060122202204.GA26295@suse.de>
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To: Olaf Hering <olh@suse.de>
Cc: linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, "Luck, Tony" <tony.luck@intel.com>

Olaf Hering <olh@suse.de> wrote:
>
> (No bugzilla or benchmark)
> 
> From: schwab@suse.de
> Subject: Reading /proc/stat is slooow
> 
> Don't compute and display the per-irq sums on ia64 either, too much
> overhead for mostly useless figures.
> 
> --- linux-2.6.14/fs/proc/proc_misc.c.~1~	2005-12-06 18:12:28.840059961 +0100
> +++ linux-2.6.14/fs/proc/proc_misc.c	2005-12-06 18:13:51.211896515 +0100
> @@ -498,7 +498,7 @@ static int show_stat(struct seq_file *p,
>  	}
>  	seq_printf(p, "intr %llu", (unsigned long long)sum);
>  
> -#if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA)
> +#if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
>  	for (i = 0; i < NR_IRQS; i++)
>  		seq_printf(p, " %u", kstat_irqs(i));
>  #endif

We'd need a big ack from the ia64 team for this, please.