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Re: [PATCH] clocksource: dw_apb_timer: add dynamic irq flag to the timer

From Daniel Lezcano <daniel.lezcano@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH] clocksource: dw_apb_timer: add dynamic irq flag to the timer
Date 2015-07-03 17:00 +0200
Message-ID <pIaBA-1kt-15@gated-at.bofh.it> (permalink)
References <pIaie-1dJ-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 07/03/2015 04:30 PM, Jisheng Zhang wrote:
> Commit d2348fb6fdc6 ("tick: Dynamically set broadcast irq affinity")
> adds one excelent feature CLOCK_EVT_FEAT_DYNIRQ to let the core set the
> interrupt affinity of the broadcast interrupt to the cpu which has the
> earliest expiry time. This patch adds CLOCK_EVT_FEAT_DYNIRQ flag to
> avoid unnecessary wakeups and IPIs when the dw_apb_timer is used as
> broadcast timer.
>
> Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
> ---

I am glad this flag helps. Were you able to do some measurements ?

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[PATCH] clocksource: dw_apb_timer: add dynamic irq flag to the timer Jisheng Zhang <jszhang@marvell.com> - 2015-07-03 16:40 +0200
  Re: [PATCH] clocksource: dw_apb_timer: add dynamic irq flag to the  timer Daniel Lezcano <daniel.lezcano@linaro.org> - 2015-07-03 17:00 +0200

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