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From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Doug Smythies <dsmythies@telus.net>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Giovanni Gherdovich <ggherdovich@suse.cz>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Linux PM <linux-pm@vger.kernel.org>
Subject: Re: [PATCH v2] cpuidle: Use nanoseconds as the unit of time
Date: Sun, 10 Nov 2019 17:48:21 +0100
Message-ID: <CAJZ5v0gZDJ2=PiiGw2mcCcVKBM2OyM1G9nRvJ+iWLFUQcXqZuw@mail.gmail.com> (raw)
In-Reply-To: <000a01d59656$99798710$cc6c9530$@net>

On Fri, Nov 8, 2019 at 6:04 PM Doug Smythies <dsmythies@telus.net> wrote:
>
> On 2019.11.08 01:45 Rafael J. Wysocki wrote:
> > On Fri, Nov 8, 2019 at 9:45 AM Doug Smythies <dsmythies@telus.net> wrote:
> >
> ...
> >> I have been running this v2 today, with both menu and teo
> >> governors. Acquiring some baseline reference data to compare
> >> to now. The menu governor response seems different (Supporting
> >> information/graphs will come later).
> >
> > That may be good or bad, depending in what way it is different. :-)
>
> My thinking was that the differences should be minimal between
> the baseline (linux-next as of 2019.11.07) and plus your two patches.
> Because this was a change of units, but not functionality.
> Such is the case with the teo governor, but not the menu governor.
> I have not tried the ladder or haltpoll governors, and don't intend to.
>
> Now to attempt to isolate the issue in the code, which might take
> considerable time.

Thanks!

It looks like I have overlooked a unit conversion in menu or done a
unit conversion twice somewhere.

  reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-06 10:30 [PATCH] " Rafael J. Wysocki
2019-11-07 14:25 ` [PATCH v2] " Rafael J. Wysocki
2019-11-08  1:44   ` Rafael J. Wysocki
2019-11-08  8:45     ` Doug Smythies
2019-11-08  9:45       ` Rafael J. Wysocki
2019-11-08 17:04         ` Doug Smythies
2019-11-10 16:48           ` Rafael J. Wysocki [this message]
2019-11-10 17:24             ` Rafael J. Wysocki
2019-11-10 18:09               ` Doug Smythies
2019-11-10 22:12                 ` Doug Smythies
2019-11-11 21:29                   ` Rafael J. Wysocki
2019-11-08  9:39     ` Peter Zijlstra

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