linux-kernel - Re: [PATCH] x86/irq: optimizing nr

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Message-ID: <20090209081421.GD24420@elte.hu>
Date:	Mon, 9 Feb 2009 09:14:21 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86/irq: optimizing nr_irqs -v2


* Yinghai Lu <yinghai@...nel.org> wrote:

> 
> Impact: more depend on cards to be used
> 
> depend on nr_irq_gsi more, and have a ratio for MSI
> 
> v2: make nr_irqs shoule less than NR_VECTORS * nr_cpu_ids
>    aka if only one cpu, we only can support nr_irqs = NR_VECTORS
> 
> Signed-off-by: Yinghai Lu <yinghai@...nel.org>
> 
> ---
>  arch/x86/kernel/io_apic.c |   16 +++++++++++-----
>  1 file changed, 11 insertions(+), 5 deletions(-)

Applied to tip/x86/apic, thanks Yinghai!

	Ingo
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