linux-kernel - Re: [PATCH 0/2] cpuidle optimizations (on top of linux-next)

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Date:	Tue, 19 Jan 2016 08:28:11 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Sudeep Holla <sudeep.holla@....com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Peter Zijlstra <peterz@...radead.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>
Subject: Re: [PATCH 0/2] cpuidle optimizations (on top of linux-next)


* Sudeep Holla <sudeep.holla@....com> wrote:

> On 15/01/16 23:53, Rafael J. Wysocki wrote:
> >Hi,
> >
> >When I was looking at the cpuidle code after the Sudeeps's problem report,
> >it occured to me that we had some pointless overhead there, so two
> >changes to reduce it follow.
> >
> >[1/2] Make the fallback to to default_idle_call() in call_cpuidle()
> >       unnecessary and drop it.
> >[2/2] Make menu_select() avoid checking states that don't need to
> >       (or even shouldn't) be checked when making the selection.
> >
> 
> Tested-by: Sudeep Holla <sudeep.holla@....com>

Rafael, can I pick these up into the scheduler tree?

Thanks,

	Ingo