From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Zwane Mwaikambo <zwane@linuxpower.ca>
Cc: Andrew Morton <akpm@digeo.com>,
Shane Shrybman <shrybman@sympatico.ca>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: 2.5.68-mmX: Drowning in irq 7: nobody cared!
Date: 06 May 2003 12:17:43 +0100 [thread overview]
Message-ID: <1052219863.28797.30.camel@dhcp22.swansea.linux.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.50.0305060636560.13957-100000@montezuma.mastecende.com>
On Maw, 2003-05-06 at 11:41, Zwane Mwaikambo wrote:
> > For anything where you get pairs of close IRQ's
>
> Shouldn't this also be observed more easily on P4/xAPIC since you can have
> a pending vector in the IRR and ISR whilst the core processes one.
I don't know enough about the pending vector stuff. For the older APIC the
IRQ's go via a suprisingly slow seperate APIC bus (4 wire if I remember
rightly).
next prev parent reply other threads:[~2003-05-06 12:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-05 13:23 Shane Shrybman
2003-05-05 21:30 ` Andrew Morton
2003-05-06 9:35 ` Alan Cox
2003-05-06 10:41 ` Zwane Mwaikambo
2003-05-06 11:17 ` Alan Cox [this message]
2003-05-06 15:17 ` Andrew Morton
2003-05-06 15:07 ` Alan Cox
2003-05-06 16:12 ` Andrew Morton
2003-05-07 22:10 ` Shane Shrybman
2003-05-06 21:44 Chuck Ebbert
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