From: Julia Lawall <julia.lawall@inria.fr>
To: Doug Smythies <dsmythies@telus.net>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Len Brown <lenb@kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Viresh Kumar <viresh.kumar@linaro.org>,
Linux PM list <linux-pm@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: problem in changing from active to passive mode
Date: Thu, 28 Oct 2021 19:10:48 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.22.394.2110281908150.9518@hadrien> (raw)
In-Reply-To: <CAAYoRsWXew+9Pch_9ux+UK0LFwy+211d2LmNLGKF_UTr3eS2Fw@mail.gmail.com>
> Now, for your graph 3, are you saying this pseudo
> code of the process is repeatable?:
>
> Power up the system, booting kernel 5.9
> switch to passive/schedutil.
> wait X minutes for system to settle
> do benchmark, result ~13 seconds
> re-boot to kernel 5.15-RC
> switch to passive/schedutil.
> wait X minutes for system to settle
> do benchmark, result ~40 seconds
> re-boot to kernel 5.9
> switch to passive/schedutil.
> wait X minutes for system to settle
> do benchmark, result ~28 seconds
In the first boot of 5.9, the des (desired?) field of the HWP_REQUEST
register is 0 and in the second boot (after booting 5.15 and entering
passive mode) it is 10. I don't know though if this is a bug or a
feature...
julia
next prev parent reply other threads:[~2021-10-28 17:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-24 13:02 problem in changing from active to passive mode Julia Lawall
2021-10-24 22:44 ` Doug Smythies
2021-10-25 5:17 ` Julia Lawall
2021-10-25 20:49 ` Julia Lawall
[not found] ` <alpine.DEB.2.22.394.2110261658440.3825@hadrien>
2021-10-27 15:10 ` Doug Smythies
2021-10-27 15:16 ` Julia Lawall
2021-10-28 17:10 ` Julia Lawall [this message]
2021-10-28 17:29 ` Rafael J. Wysocki
2021-10-28 17:57 ` Rafael J. Wysocki
2021-10-28 18:16 ` Rafael J. Wysocki
2021-10-28 18:43 ` Rafael J. Wysocki
2021-10-28 19:13 ` Julia Lawall
2021-10-28 19:21 ` Rafael J. Wysocki
2021-10-28 19:25 ` Julia Lawall
2021-10-28 19:48 ` Rafael J. Wysocki
2021-10-28 20:18 ` Julia Lawall
2021-10-29 15:39 ` Rafael J. Wysocki
2021-10-29 20:29 ` Julia Lawall
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