Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1605701
| From | Peter Zijlstra <peterz@infradead.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs |
| Date | 2017-03-21 16:10 +0100 |
| Message-ID | <tntA7-4ZS-49@gated-at.bofh.it> (permalink) |
| References | <tmJnz-6kS-3@gated-at.bofh.it> <tns1k-3SO-19@gated-at.bofh.it> <tnsaZ-3W4-3@gated-at.bofh.it> <tnt73-4zY-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue, Mar 21, 2017 at 03:26:06PM +0100, Rafael J. Wysocki wrote:
> + if ((flags & SCHED_CPUFREQ_RT_DL) || this_rq()->rd->overload) {
> next_f = policy->cpuinfo.max_freq;
So this I think is wrong; rd->overload is set if _any_ of the CPUs in the
root domain is overloaded. And given the root domain is typically the
_entire_ machine, this would have a tendency to run at max_freq far too
often.
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH 0/2] cpufreq: schedutil: Fix and optimization "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-19 14:50 +0100
[PATCH 1/2] cpufreq: schedutil: Fix per-CPU structure initialization in sugov_start() "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-19 14:50 +0100
Re: [PATCH 1/2] cpufreq: schedutil: Fix per-CPU structure initialization in sugov_start() Viresh Kumar <viresh.kumar@linaro.org> - 2017-03-20 04:30 +0100
Re: [PATCH 1/2] cpufreq: schedutil: Fix per-CPU structure initialization in sugov_start() "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-20 13:50 +0100
[RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-19 14:50 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-19 22:40 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-19 22:50 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-20 12:10 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-20 13:50 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Viresh Kumar <viresh.kumar@linaro.org> - 2017-03-20 05:00 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-20 09:30 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Patrick Bellasi <patrick.bellasi@arm.com> - 2017-03-20 13:40 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Joel Fernandes <joelaf@google.com> - 2017-03-23 01:00 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-23 23:10 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Joel Fernandes <joelaf@google.com> - 2017-03-25 04:50 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-27 09:10 +0200
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-20 14:10 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-20 14:40 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-20 14:30 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-20 12:50 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-20 13:50 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-20 14:00 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Patrick Bellasi <patrick.bellasi@arm.com> - 2017-03-20 14:10 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-20 14:40 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs Patrick Bellasi <patrick.bellasi@arm.com> - 2017-03-20 15:20 +0100
Re: [RFC][PATCH 2/2] cpufreq: schedutil: Force max frequency on busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-20 14:20 +0100
[RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-20 23:00 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Viresh Kumar <viresh.kumar@linaro.org> - 2017-03-21 07:50 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs "Rafael J. Wysocki" <rafael@kernel.org> - 2017-03-21 13:40 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-21 10:00 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Patrick Bellasi <patrick.bellasi@arm.com> - 2017-03-21 13:00 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-21 14:30 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-21 14:40 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-21 15:30 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-21 15:40 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Patrick Bellasi <patrick.bellasi@arm.com> - 2017-03-21 15:50 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-21 16:00 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-21 16:10 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-21 16:30 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-21 18:10 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-21 18:30 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Patrick Bellasi <patrick.bellasi@arm.com> - 2017-03-21 16:10 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-21 16:20 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Patrick Bellasi <patrick.bellasi@arm.com> - 2017-03-21 20:30 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-21 16:10 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-21 16:10 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Patrick Bellasi <patrick.bellasi@arm.com> - 2017-03-21 15:40 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-21 16:00 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Peter Zijlstra <peterz@infradead.org> - 2017-03-21 16:00 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-21 18:10 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-21 18:10 +0100
Re: [RFC][PATCH v2 2/2] cpufreq: schedutil: Avoid decreasing frequency of busy CPUs Patrick Bellasi <patrick.bellasi@arm.com> - 2017-03-21 13:00 +0100
[RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-22 00:20 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely Peter Zijlstra <peterz@infradead.org> - 2017-03-22 10:30 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely Viresh Kumar <viresh.kumar@linaro.org> - 2017-03-22 11:10 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely Joel Fernandes <joelaf@google.com> - 2017-03-23 02:10 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely Sai Gurrappadi <sgurrappadi@nvidia.com> - 2017-03-23 20:30 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely Sai Gurrappadi <sgurrappadi@nvidia.com> - 2017-03-23 22:00 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely "Rafael J. Wysocki" <rafael@kernel.org> - 2017-03-24 02:40 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely Sai Gurrappadi <sgurrappadi@nvidia.com> - 2017-03-24 20:20 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely Sai Gurrappadi <sgurrappadi@nvidia.com> - 2017-03-25 02:20 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely "Rafael J. Wysocki" <rafael@kernel.org> - 2017-03-25 02:40 +0100
Re: [RFC][PATCH v3 2/2] cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely Vincent Guittot <vincent.guittot@linaro.org> - 2017-03-27 09:20 +0200
csiph-web