From: Ingo Molnar <mingo@elte.hu>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86/irq: optimizing nr_irqs -v2
Date: Mon, 9 Feb 2009 09:14:21 +0100 [thread overview]
Message-ID: <20090209081421.GD24420@elte.hu> (raw)
In-Reply-To: <498EA964.2070902@kernel.org>
* Yinghai Lu <yinghai@kernel.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@kernel.org>
>
> ---
> arch/x86/kernel/io_apic.c | 16 +++++++++++-----
> 1 file changed, 11 insertions(+), 5 deletions(-)
Applied to tip/x86/apic, thanks Yinghai!
Ingo
next prev parent reply other threads:[~2009-02-09 8:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-06 23:59 [PATCH] x86: find nr_irqs_gsi with mp_ioapic_routing Yinghai Lu
2009-02-07 0:00 ` [PATCH] x86/irq: optimizing nr_irqs Yinghai Lu
2009-02-08 9:44 ` [PATCH] x86/irq: optimizing nr_irqs -v2 Yinghai Lu
2009-02-09 8:14 ` Ingo Molnar [this message]
2009-02-07 3:35 ` [PATCH] x86: find nr_irqs_gsi with mp_ioapic_routing Len Brown
2009-02-07 3:47 ` Yinghai Lu
2009-02-07 7:15 ` Len Brown
2009-02-08 1:13 ` [PATCH] x86: use NR_IRQS_LEGACY to replace 16 Yinghai Lu
2009-02-09 8:14 ` Ingo Molnar
2009-02-09 8:13 ` [PATCH] x86: find nr_irqs_gsi with mp_ioapic_routing Ingo Molnar
2009-02-09 9:03 ` [PATCH] x86: find nr_irqs_gsi with mp_ioapic_routing v3 Yinghai Lu
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