From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Pavel Machek <pavel@ucw.cz>
Cc: Linux PM list <linux-pm@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Zhang Rui <rui.zhang@intel.com>, Aubrey Li <aubrey.li@intel.com>
Subject: Re: [PATCH] PM / suspend: Always use deepest C-state in the "freeze" sleep state
Date: Fri, 09 May 2014 13:26:47 +0200 [thread overview]
Message-ID: <2485687.UrJORvS9e7@vostro.rjw.lan> (raw)
In-Reply-To: <20140509073835.GB4965@xo-6d-61-c0.localdomain>
On Friday, May 09, 2014 09:38:35 AM Pavel Machek wrote:
> On Mon 2014-05-05 00:51:54, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> >
> > If freeze_enter() is called, we want to bypass the current cpuidle
> > governor and always use the deepest available (that is, not disabled)
> > C-state, because we want to save as much energy as reasonably possible
> > then and runtime latency constraints don't matter at that point, since
> > the system is in a sleep state anyway.
>
> Would there be way to pass the parameter "go to deepest" instead of adding
> global state for this?
I'm not sure what you mean? A parameter of what in particular? And where
to pass it?
Rafael
next prev parent reply other threads:[~2014-05-09 11:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-04 22:51 Rafael J. Wysocki
2014-05-05 12:46 ` Li, Aubrey
2014-05-09 7:38 ` Pavel Machek
2014-05-09 11:26 ` Rafael J. Wysocki [this message]
2014-05-09 14:13 ` Pavel Machek
2014-05-09 21:25 ` Rafael J. Wysocki
2014-05-12 14:08 ` Daniel Lezcano
2014-05-12 14:19 ` Li, Aubrey
2014-05-12 14:52 ` Daniel Lezcano
2014-05-12 23:53 ` Rafael J. Wysocki
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