From mboxrd@z Thu Jan 1 00:00:00 1970 From: viresh.kumar@linaro.org (viresh kumar) Date: Thu, 14 Nov 2013 13:39:43 +0530 Subject: a bug on NO_HZ_FULL_ALL In-Reply-To: References: <52843855.5060509@linaro.org> <52847FBE.9070501@linaro.org> Message-ID: <52848547.9080604@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thursday 14 November 2013 01:35 PM, Vincent Guittot wrote: > AFAICT, It's a none issue. In full nohz, a timer fires periodically > (around 4sec period on ARM IIRC) on one cpu (cpu0). Timer should always be running on CPU0, its out of nohz-full domain. Its cpu 1, where it will fire after long delays.. https://wiki.linaro.org/WorkingGroups/PowerManagement/Doc/AdaptiveTickless