linux-kernel - Re: [PATCH] clocksource/drivers/tegra: allow timer irq affinity change

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Message-ID: <1445977362.2535.1.camel@lynxeye.de>
Date:	Tue, 27 Oct 2015 21:22:42 +0100
From:	Lucas Stach <dev@...xeye.de>
To:	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>,
	linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re: [PATCH] clocksource/drivers/tegra: allow timer irq affinity
 change

Am Dienstag, den 27.10.2015, 11:14 +0100 schrieb Daniel Lezcano:
> On 10/25/2015 04:40 PM, Lucas Stach wrote:
> > Allow the timer core to change the smp affinity of the broadcast
> > timer
> > irq by setting CLOCK_EVT_FEAT_DYNIRQ flag.
> > 
> > This reduces interrupt pressure and wakeups on CPU0 as well as
> > vastly
> > reducing the number of timer broadcast IPIs.
> 
> Did you test this patch on a tegra2 ?
> 
Yes, I haven't spotted anything bad, but don't know if I should look
out for specific oddities?

Regards,
Lucas
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