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[188.155.181.108]) by smtp.gmail.com with ESMTPSA id y1sm6016626eju.29.2022.02.22.00.18.41 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Feb 2022 00:18:42 -0800 (PST) From: Krzysztof Kozlowski To: kernel-team@lists.ubuntu.com Subject: [J/realtime][PATCH v2] UBUNTU: [Config] realtime: tweak config for realtime tasks Date: Tue, 22 Feb 2022 09:18:40 +0100 Message-Id: <20220222081840.15257-1-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" BugLink: https://bugs.launchpad.net/bugs/1961588 Change kernel config to fit Realtime use cases: 1. CONFIG_WQ_POWER_EFFICIENT_DEFAULT disable: energy saving is not that important for Realtime workload but locality of any workqueues (thus waking up only local CPU). 2. CONFIG_TIMERLAT_TRACER and CONFIG_OSNOISE_TRACER enable: for debugging latency issues. 3. CONFIG_BLK_CGROUP_IOLATENCY enable: for users wanting to have guarantees on IO latencies. 4. CONFIG_IRQ_TIME_ACCOUNTING enable: for fine granularity task IRQ accounting. Signed-off-by: Krzysztof Kozlowski Acked-by: Tim Gardner --- Changes since v1: 1. Correct subject debian.realtime/config/config.common.ubuntu | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/debian.realtime/config/config.common.ubuntu b/debian.realtime/config/config.common.ubuntu index 9d325d4ab744..9cb2a8111c51 100644 --- a/debian.realtime/config/config.common.ubuntu +++ b/debian.realtime/config/config.common.ubuntu @@ -983,7 +983,7 @@ CONFIG_BITREVERSE=y CONFIG_BLK_CGROUP=y CONFIG_BLK_CGROUP_FC_APPID=y CONFIG_BLK_CGROUP_IOCOST=y -# CONFIG_BLK_CGROUP_IOLATENCY is not set +CONFIG_BLK_CGROUP_IOLATENCY=y CONFIG_BLK_CGROUP_IOPRIO=y CONFIG_BLK_CGROUP_RWSTAT=y CONFIG_BLK_DEBUG_FS=y @@ -3848,6 +3848,7 @@ CONFIG_HAVE_PREEMPT_LAZY=y CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y CONFIG_HAVE_RELIABLE_STACKTRACE=y CONFIG_HAVE_RSEQ=y +CONFIG_HAVE_SCHED_AVG_IRQ=y CONFIG_HAVE_SETUP_PER_CPU_AREA=y CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y CONFIG_HAVE_STACKPROTECTOR=y @@ -4894,7 +4895,7 @@ CONFIG_IRQ_FORCED_THREADING=y CONFIG_IRQ_MSI_IOMMU=y CONFIG_IRQ_POLL=y CONFIG_IRQ_REMAP=y -# CONFIG_IRQ_TIME_ACCOUNTING is not set +CONFIG_IRQ_TIME_ACCOUNTING=y CONFIG_IRQ_WORK=y CONFIG_IR_ENE=m CONFIG_IR_FINTEK=m @@ -7012,7 +7013,7 @@ CONFIG_OPTPROBES=y CONFIG_ORANGEFS_FS=m CONFIG_ORINOCO_USB=m CONFIG_OSF_PARTITION=y -# CONFIG_OSNOISE_TRACER is not set +CONFIG_OSNOISE_TRACER=y CONFIG_OUTPUT_FORMAT="elf64-x86-64" CONFIG_OVERLAY_FS=m # CONFIG_OVERLAY_FS_INDEX is not set @@ -10468,7 +10469,7 @@ CONFIG_TIFM_CORE=m CONFIG_TIGON3=m CONFIG_TIGON3_HWMON=y CONFIG_TIMERFD=y -# CONFIG_TIMERLAT_TRACER is not set +CONFIG_TIMERLAT_TRACER=y CONFIG_TIMER_ACPI=y CONFIG_TIMER_IMX_SYS_CTR=y CONFIG_TIMER_OF=y @@ -11806,7 +11807,7 @@ CONFIG_WM831X_WATCHDOG=m CONFIG_WM8350_POWER=m CONFIG_WM8350_WATCHDOG=m CONFIG_WMI_BMOF=m -CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y +# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set # CONFIG_WQ_WATCHDOG is not set CONFIG_WWAN=y CONFIG_WWAN_HWSIM=m