From: Peter Zijlstra <peterz@infradead.org>
To: Lukasz Luba <lukasz.luba@arm.com>
Cc: linux-kernel@vger.kernel.org, Chris.Redpath@arm.com,
dietmar.eggemann@arm.com, morten.rasmussen@arm.com,
qperret@google.com, linux-pm@vger.kernel.org, rjw@rjwysocki.net,
viresh.kumar@linaro.org, vincent.guittot@linaro.org,
mingo@redhat.com, juri.lelli@redhat.com, rostedt@goodmis.org,
segall@google.com, mgorman@suse.de, bristot@redhat.com,
CCj.Yeh@mediatek.com
Subject: Re: [PATCH 2/3] PM: EM: Make em_cpu_energy() able to return bigger values
Date: Wed, 7 Jul 2021 12:01:38 +0200 [thread overview]
Message-ID: <YOV7gt67DyYXtBkF@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <ca9853d1-5ff2-bdac-7581-61bffa3fdaaa@arm.com>
On Wed, Jul 07, 2021 at 09:09:08AM +0100, Lukasz Luba wrote:
> For now we would live with this simple code which improves
> all recent 64bit platforms and is easy to take it into Android
> common kernel. The next step would be more scattered across
> other subsystems, so harder to backport to Android 5.4 and others.
Ah, you *do* only care about 64bit :-) So one option is to only increase
precision for 64BIT builds, just like we do for scale_load() and
friends.
next prev parent reply other threads:[~2021-07-07 10:02 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-25 15:26 [PATCH 0/3] Improve EAS energy estimation and increase precision Lukasz Luba
2021-06-25 15:26 ` [PATCH 1/3] sched/fair: Prepare variables for increased precision of EAS estimated energy Lukasz Luba
2021-06-30 17:01 ` Rafael J. Wysocki
2021-06-30 17:28 ` Lukasz Luba
2021-07-02 19:07 ` Lukasz Luba
2021-07-07 7:07 ` Vincent Guittot
2021-07-07 7:49 ` Lukasz Luba
2021-07-07 8:00 ` Vincent Guittot
2021-07-07 8:23 ` Lukasz Luba
2021-07-07 9:37 ` Vincent Guittot
2021-07-07 9:48 ` Lukasz Luba
2021-07-07 9:56 ` Vincent Guittot
2021-07-07 10:06 ` Lukasz Luba
2021-07-07 10:11 ` Vincent Guittot
2021-07-07 10:29 ` Lukasz Luba
2021-07-07 10:32 ` Vincent Guittot
2021-07-07 10:41 ` Lukasz Luba
2021-07-07 10:50 ` Vincent Guittot
2021-07-07 11:02 ` Lukasz Luba
2021-07-07 13:53 ` Vincent Guittot
2021-07-07 14:25 ` Lukasz Luba
2021-07-07 9:45 ` Dietmar Eggemann
2021-07-07 9:54 ` Lukasz Luba
2021-06-25 15:26 ` [PATCH 2/3] PM: EM: Make em_cpu_energy() able to return bigger values Lukasz Luba
2021-07-05 12:44 ` Dietmar Eggemann
2021-07-06 19:44 ` Lukasz Luba
2021-07-07 7:07 ` Peter Zijlstra
2021-07-07 8:09 ` Lukasz Luba
2021-07-07 10:01 ` Peter Zijlstra [this message]
2021-07-07 10:23 ` Lukasz Luba
2021-06-25 15:26 ` [PATCH 3/3] PM: EM: Increase energy calculation precision Lukasz Luba
2021-07-05 12:45 ` Dietmar Eggemann
2021-07-06 19:51 ` Lukasz Luba
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