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

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Message-ID: <562FE46C.8080904@linaro.org>
Date:	Tue, 27 Oct 2015 21:54:04 +0100
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Lucas Stach <dev@...xeye.de>, 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

On 10/27/2015 09:22 PM, Lucas Stach wrote:
> 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?

I was wondering if you tested it because the changelog was the same than 
the similar change you did previously so I wanted to know if you assumed 
the behavior or if you tested it.

So, no problem.

Thanks !

   -- Daniel


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