From: Viresh Kumar <viresh.kumar@linaro.org>
To: Doug Smythies <dsmythies@telus.net>
Cc: "'Rafael J. Wysocki'" <rafael@kernel.org>,
'Rafael Wysocki' <rjw@rjwysocki.net>,
'Ingo Molnar' <mingo@redhat.com>,
'Peter Zijlstra' <peterz@infradead.org>,
'Linux PM' <linux-pm@vger.kernel.org>,
'Vincent Guittot' <vincent.guittot@linaro.org>,
'Joel Fernandes' <joel@joelfernandes.org>,
"'v4 . 18+'" <stable@vger.kernel.org>,
'Linux Kernel Mailing List' <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] cpufreq: schedutil: Don't skip freq update when limits change
Date: Fri, 26 Jul 2019 08:56:31 +0530 [thread overview]
Message-ID: <20190726032631.rflrl5wxgbphqxyf@vireshk-i7> (raw)
In-Reply-To: <000c01d542fc$703ff850$50bfe8f0$@net>
On 25-07-19, 08:20, Doug Smythies wrote:
> I tried the patch ("patch2"). It did not fix the issue.
>
> To summarize, all kernel 5.2 based, all intel_cpufreq driver and schedutil governor:
>
> Test: Does a busy system respond to maximum CPU clock frequency reduction?
>
> stock, unaltered: No.
> revert ecd2884291261e3fddbc7651ee11a20d596bb514: Yes
> viresh patch: No.
> fast_switch edit: No.
You tried this fast-switch thing with my patch applied, right ?
> viresh patch2: No.
>
> References (and procedures used):
> https://marc.info/?l=linux-pm&m=156346478429147&w=2
> https://marc.info/?l=linux-kernel&m=156343125319461&w=2
>
> ... Doug
>
--
viresh
next prev parent reply other threads:[~2019-07-26 3:26 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-18 6:26 [PATCH] Revert "cpufreq: schedutil: Don't set next_freq to UINT_MAX" Doug Smythies
2019-07-18 10:28 ` Viresh Kumar
2019-07-18 15:46 ` Doug Smythies
2019-07-22 6:49 ` Viresh Kumar
2019-07-22 6:51 ` [PATCH] cpufreq: schedutil: Don't skip freq update when limits change Viresh Kumar
2019-07-23 7:10 ` Doug Smythies
2019-07-23 9:13 ` Rafael J. Wysocki
2019-07-23 9:15 ` Viresh Kumar
2019-07-23 10:27 ` Rafael J. Wysocki
2019-07-24 11:43 ` Viresh Kumar
2019-07-25 15:20 ` Doug Smythies
2019-07-26 3:26 ` Viresh Kumar [this message]
2019-07-26 6:57 ` Viresh Kumar
2019-07-29 7:55 ` Doug Smythies
2019-07-29 8:32 ` Viresh Kumar
2019-07-29 8:37 ` Rafael J. Wysocki
2019-08-01 0:20 ` Doug Smythies
2019-08-01 6:17 ` Viresh Kumar
2019-08-01 7:47 ` Rafael J. Wysocki
2019-08-01 7:55 ` Viresh Kumar
2019-08-01 17:57 ` Doug Smythies
2019-08-02 3:48 ` Viresh Kumar
2019-08-02 9:11 ` Rafael J. Wysocki
2019-08-02 9:19 ` Rafael J. Wysocki
2019-08-06 4:00 ` Viresh Kumar
2019-07-31 2:58 Viresh Kumar
2019-07-31 23:19 ` Doug Smythies
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