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Mon, 08 Jun 2026 05:15:49 -0700 (PDT) From: Yuri Andriaccio To: Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Tejun Heo , Johannes Weiner , =?UTF-8?q?Michal=20Koutn=C3=BD?= Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, Luca Abeni , Yuri Andriaccio Subject: [RFC PATCH v6 02/25] sched/rt: Update default bandwidth for real-time tasks to ONE Date: Mon, 8 Jun 2026 14:15:21 +0200 Message-ID: <20260608121546.69910-3-yurand2000@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260608121546.69910-1-yurand2000@gmail.com> References: <20260608121546.69910-1-yurand2000@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Set the default total bandwidth for SCHED_DEADLINE tasks and servers to ONE. FIFO/RR tasks are already throttled by fair-servers and ext-servers, and the sysctl_sched_rt_runtime parameter now only defines the total bw that is allowed to deadline entities. --- Already merged in sched/tip: https://git.kernel.org/tip/c2e390197ad1360db6686a8c89abaafaf83adf72 Signed-off-by: Yuri Andriaccio --- kernel/sched/rt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 4ee8faf01441..e6ea728f519e 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -19,9 +19,9 @@ int sysctl_sched_rt_period = 1000000; /* * part of the period that we allow rt tasks to run in us. - * default: 0.95s + * default: 1s */ -int sysctl_sched_rt_runtime = 950000; +int sysctl_sched_rt_runtime = 1000000; #ifdef CONFIG_SYSCTL static int sysctl_sched_rr_timeslice = (MSEC_PER_SEC * RR_TIMESLICE) / HZ; -- 2.54.0