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[77.199.4.181]) by smtp.gmail.com with ESMTPSA id v24sm13229925wrd.92.2020.07.10.08.12.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Jul 2020 08:12:34 -0700 (PDT) Date: Fri, 10 Jul 2020 17:12:33 +0200 From: Willy Wolff To: Lukasz Luba Subject: Re: [RFC PATCH 0/2] PM / devfreq: Add delayed timer for polling Message-ID: <20200710151233.ci5c4rgwb64eswy7@macmini.local> References: <20200703062622.11773-1-cw00.choi@samsung.com> <20200703123346.6fy6i33ks6nox46a@macmini.local> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200710_111237_634027_AF7EB16B X-CRM114-Status: GOOD ( 23.37 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-samsung-soc@vger.kernel.org, chanwoo@kernel.org, b.zolnierkie@samsung.com, k.konieczny@samsung.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, krzk@kernel.org, Chanwoo Choi , kyungmin.park@samsung.com, kgene@kernel.org, myungjoo.ham@samsung.com, s.nawrocki@samsung.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Lukasz, On 2020-07-08-15-25-03, Lukasz Luba wrote: > Hi Willy, > > On 7/3/20 1:33 PM, Willy Wolff wrote: > > Hi Chanwoo, > > > > I think it doesn't help on the benchmark I suggested that is doing only memory > > accesses. With both timer, I have the same timing. > > > > To test the benchmark with these new patches about timer: > > > > git clone https://github.com/wwilly/benchmark.git \ > > && cd benchmark \ > > && source env.sh \ > > && ./bench_build.sh \ > > && bash source/scripts/test_dvfs_mem_patched.sh > > > > The benchmark is set by default to run for 1s, but you can increase this by > > tweaking the script as: > > > > taskset 8 ./bench_install/bin/microbe_cache 33554431 0 9722222