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[80.47.4.194]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-432d5557332sm29571735e9.43.2024.11.13.08.40.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Nov 2024 08:40:52 -0800 (PST) Date: Wed, 13 Nov 2024 16:40:49 +0000 From: Juri Lelli To: Waiman Long Cc: Tejun Heo , Johannes Weiner , Michal Koutny , Ingo Molnar , Peter Zijlstra , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Qais Yousef , Sebastian Andrzej Siewior , "Joel Fernandes (Google)" , Suleiman Souhlal , Aashish Sharma , Shin Kawamura , Vineeth Remanan Pillai , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org Subject: Re: [PATCH 2/2] sched/deadline: Correctly account for allocated bandwidth during hotplug Message-ID: References: <20241113125724.450249-1-juri.lelli@redhat.com> <20241113125724.450249-3-juri.lelli@redhat.com> <8e55c640-c931-4b9c-a501-c5b0a654a420@redhat.com> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8e55c640-c931-4b9c-a501-c5b0a654a420@redhat.com> On 13/11/24 11:06, Waiman Long wrote: ... > This part can still cause a failure in one of test cases in my cpuset > partition test script. In this particular case, the CPU to be offlined is an > isolated CPU with scheduling disabled. As a result, total_bw is 0 and the > __dl_overflow() test failed. Is there a way to skip the __dl_overflow() test > for isolated CPUs? Can we use a null total_bw as a proxy for that? Can you please share the repro script? Would like to check locally what is going on. Thanks! Juri