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Fri, 13 Nov 2026 07:04:20 -0800 (PST) X-Received: by 2002:a05:600c:a44:b0:4a2:a6e:80f5 with SMTP id 5b1f17b1804b1-4bb55a45045mr59741585e9.11.1794582260021; Fri, 13 Nov 2026 07:04:20 -0800 (PST) Received: from jlelli-thinkpadt14gen4.remote.csb ([151.29.158.90]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4bb55af2901sm65285595e9.13.2026.11.13.07.04.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Nov 2026 07:04:17 -0800 (PST) Date: Fri, 13 Nov 2026 16:04:14 +0100 From: Juri Lelli To: Mathieu Desnoyers Cc: peterz@infradead.org, mingo@redhat.com, vincent.guittot@linaro.org, linux-kernel@vger.kernel.org, tglx@kernel.org, will@kernel.org, boqun@kernel.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, kprateek.nayak@amd.com, luca.abeni@santannapisa.it, mathieu.poirier@linaro.org, longman@redhat.com, ridong.chen@linux.dev, tj@kernel.org, hannes@cmpxchg.org, mkoutny@suse.com, shuah@kernel.org, bigeasy@linutronix.de, clrkwllms@kernel.org, parri.andrea@gmail.com, m.szyprowski@samsung.com, kayracizmeci@gmail.com, weihengqiuu@gmail.com, cgroups@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-rt-devel@lists.linux.dev Subject: Re: [PATCH v5 26/29] sched/debug: Show the deadline bandwidth of each runqueue Message-ID: References: <20261108185406.1549770-1-mathieu.desnoyers@efficios.com> <20261108185406.1549770-27-mathieu.desnoyers@efficios.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On 13/11/26 08:36, Mathieu Desnoyers wrote: > Hi Juri, > > > OK, but we will still not printing additional useful information like > > extra_bw, etc. Not sure if you are aware of tools/sched/dl_bw_dump.py > > drgn script; maybe that is already useful for the needed additional > > debugging information? > > I did not know that script, thanks. It shows more than this patch does. > > The two lines are there for the selftests. params_waking and random_mix > of deadline_bw_test read running_bw and this_bw of each CPU from > /sys/kernel/debug/sched/debug. A selftest cannot rely on drgn and on > the debug information of the running kernel. > > So I would keep the patch as it is. I would not add extra_bw: no test > reads it, and your script has it. Works for me, thanks.