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Wed, 07 Feb 2024 13:35:56 -0800 (PST) Sender: Tejun Heo Date: Wed, 7 Feb 2024 11:35:54 -1000 From: Tejun Heo To: Marek Szyprowski Cc: "Rafael J. Wysocki" , "Rafael J. Wysocki" , Linux PM , Ulf Hansson , Nathan Chancellor , LKML , Stanislaw Gruszka , Lai Jiangshan , Naohiro.Aota@wdc.com, kernel-team@meta.com Subject: Re: [PATCH v1] PM: sleep: Restore asynchronous device resume optimization Message-ID: References: <10423008.nUPlyArG6x@kreacher> <708a65cc-79ec-44a6-8454-a93d0f3114c3@samsung.com> <4a043533-009f-4db9-b107-c8374be28d2b@samsung.com> <2f125955-8c7c-465c-938c-8768f7ca360b@samsung.com> Precedence: bulk X-Mailing-List: linux-kernel@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: Hello, On Wed, Feb 07, 2024 at 10:30:58PM +0100, Marek Szyprowski wrote: .. > Disabling non-boot CPUs ... > XXX wq_update_node_max_active: wq=events_unbound off_cpu=1 total=3 range=[32, 512] node[0] node_cpus=3 max=512 > XXX wq_update_node_max_active: wq=events_unbound off_cpu=2 total=2 range=[32, 512] node[0] node_cpus=2 max=512 > XXX wq_update_node_max_active: wq=events_unbound off_cpu=3 total=1 range=[32, 512] node[0] node_cpus=1 max=512 > Enabling non-boot CPUs ... > XXX wq_update_node_max_active: wq=events_unbound off_cpu=-1 total=2 range=[32, 512] node[0] node_cpus=2 max=512 > CPU1 is up > XXX wq_update_node_max_active: wq=events_unbound off_cpu=-1 total=3 range=[32, 512] node[0] node_cpus=3 max=512 > CPU2 is up > XXX wq_update_node_max_active: wq=events_unbound off_cpu=-1 total=4 range=[32, 512] node[0] node_cpus=4 max=512 > CPU3 is up So, the node max_active does stay at 512. The only pwq which uses min_active would be the dfl_pwq but I'm not sure why that'd be being used. Can you please post the output of `drgn -v vmlinux tools/workqueue/wq_dump.py`? Thanks. -- tejun