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[188.155.168.84]) by smtp.gmail.com with ESMTPSA id u14sm2540520wrf.39.2022.01.13.04.21.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Jan 2022 04:21:57 -0800 (PST) From: Krzysztof Kozlowski To: kernel-team@lists.ubuntu.com Subject: [J/realtime][PATCH] UBUNTU: [Config] realtime: enable CONFIG_RT_GROUP_SCHED Date: Thu, 13 Jan 2022 13:21:52 +0100 Message-Id: <20220113122153.137498-1-krzysztof.kozlowski@canonical.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" The RT_GROUP_SCHED (Real-Time group scheduling) allows explicitly allocate real CPU bandwidth to task groups. This might be useful for workloads consisting of separate realtime tasks. It has however a drawback of requiring root user to allocate realtime bandwidth for other realtime users, via the CGroup interface. See also: Documentation/scheduler/sched-rt-group.rst BugLink: https://bugs.launchpad.net/bugs/1957788 Signed-off-by: Krzysztof Kozlowski Acked-by: Tim Gardner --- debian.realtime/config/annotations | 2 ++ debian.realtime/config/config.common.ubuntu | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/debian.realtime/config/annotations b/debian.realtime/config/annotations index 82c1e5ed49ae..365230cfe657 100644 --- a/debian.realtime/config/annotations +++ b/debian.realtime/config/annotations @@ -25,3 +25,5 @@ CONFIG_NO_HZ_FULL policy<{'amd64': 'y', 'arm64': ' CONFIG_NO_HZ_FULL mark CONFIG_RCU_NOCB_CPU policy<{'amd64': 'y', 'arm64': 'y'}> CONFIG_RCU_NOCB_CPU mark +CONFIG_RT_GROUP_SCHED policy<{'amd64': 'y', 'arm64': 'y'}> +CONFIG_RT_GROUP_SCHED mark diff --git a/debian.realtime/config/config.common.ubuntu b/debian.realtime/config/config.common.ubuntu index f494c4d8f058..2142f943d375 100644 --- a/debian.realtime/config/config.common.ubuntu +++ b/debian.realtime/config/config.common.ubuntu @@ -8526,7 +8526,7 @@ CONFIG_RTW89_DEBUG=y CONFIG_RTW89_DEBUGFS=y CONFIG_RTW89_DEBUGMSG=y CONFIG_RTW89_PCI=m -# CONFIG_RT_GROUP_SCHED is not set +CONFIG_RT_GROUP_SCHED=y CONFIG_RT_MUTEXES=y CONFIG_RUNTIME_TESTING_MENU=y CONFIG_RWSEM_SPIN_ON_OWNER=y