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Wysocki'" , 'Rafael Wysocki' , 'Ingo Molnar' , 'Peter Zijlstra' , 'Linux PM' , 'Vincent Guittot' , 'Joel Fernandes' , "'v4 . 18+'" , 'Linux Kernel Mailing List' Subject: Re: [PATCH] cpufreq: schedutil: Don't skip freq update when limits change Message-ID: <20190726032631.rflrl5wxgbphqxyf@vireshk-i7> References: <1563431200-3042-1-git-send-email-dsmythies@telus.net> <8091ef83f264feb2feaa827fbeefe08348bcd05d.1563778071.git.viresh.kumar@linaro.org> <001201d54125$a6a82350$f3f869f0$@net> <20190723091551.nchopfpqlmdmzvge@vireshk-i7> <20190724114327.apmx35c7a4tv3qt5@vireshk-i7> <000c01d542fc$703ff850$50bfe8f0$@net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000c01d542fc$703ff850$50bfe8f0$@net> User-Agent: NeoMutt/20180716-391-311a52 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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