From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 194963] schedutil governor causes audio problem in game
Date: Fri, 24 Mar 2017 23:06:51 +0000
Message-ID: <bug-194963-137361-HkpyuRHUVQ@https.bugzilla.kernel.org/>
References: <bug-194963-137361@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=194963

--- Comment #10 from John (john.ettedgui@gmail.com) ---
(In reply to Rafael J. Wysocki from comment #9)
> I would use intel_pstate "powersave" (with the patch you have tested
> applied).
> 
Alright.
> One more question, though.
> 
> I guess that you used "schedutil" with acpi-cpufreq as a scaling_driver?
> 
Correct.
> If that's correct, can you please also try to run intel_pstate in the
> passive mode (that is, pass "intel_pstate=passive" to the kernel command
> line) and use "schedutil" with that (scaling_driver will show
> "intel_cpufreq" in that configuration)?
> 
> With acpi-cpufreq "schedutil" may under-provision things due to the way in
> which turbo P-states are represented in the ACPI tables.

I just tested it, and still had the audio cracking. I'm not convinced it was
any different from using it with acpi-cpufreq, but since I don't measure the
time between audio distortions I could be wrong.

Thank you!

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