From: Lukasz Luba <lukasz.luba@arm.com>
To: linux-kernel@vger.kernel.org, kgene@kernel.org, krzk@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org,
linux-pm@vger.kernel.org
Cc: myungjoo.ham@samsung.com, kyungmin.park@samsung.com,
cw00.choi@samsung.com, robh+dt@kernel.org, mark.rutland@arm.com,
b.zolnierkie@samsung.com, lukasz.luba@arm.com,
dietmar.eggemann@arm.com
Subject: [RESEND PATCH v2 2/2] ARM: exynos_defconfig: Enable SCHED_MC and ENERGY_MODEL
Date: Thu, 20 Feb 2020 09:56:36 +0000 [thread overview]
Message-ID: <20200220095636.29469-3-lukasz.luba@arm.com> (raw)
In-Reply-To: <20200220095636.29469-1-lukasz.luba@arm.com>
The Energy Model (EM) is needed to run Energy Aware Scheduler (EAS).
Enable ENERGY_MODEL to make that happen. This will increase energy
efficiency of the big.LITTLE platform by smart decisions in scheduling
tasks in non-heavy workloads.
Add SCHED_MC in order to create another level in scheduling domains: 'MC'.
This improves scheduler's decisions on platforms with CPU clusters, such
as big.LITTLE.
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
---
arch/arm/configs/exynos_defconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
index c8e0c14092e8..90d376eb333b 100644
--- a/arch/arm/configs/exynos_defconfig
+++ b/arch/arm/configs/exynos_defconfig
@@ -8,6 +8,7 @@ CONFIG_PERF_EVENTS=y
CONFIG_ARCH_EXYNOS=y
CONFIG_CPU_ICACHE_MISMATCH_WORKAROUND=y
CONFIG_SMP=y
+CONFIG_SCHED_MC=y
CONFIG_BIG_LITTLE=y
CONFIG_NR_CPUS=8
CONFIG_HIGHMEM=y
@@ -17,6 +18,7 @@ CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y
CONFIG_CMDLINE="root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC1,115200 init=/linuxrc mem=256M"
+CONFIG_ENERGY_MODEL=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
--
2.17.1
next prev parent reply other threads:[~2020-02-20 9:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-20 9:56 [RESEND PATCH v2 0/2] Enable Odroid-XU3/4 to use Energy Model and Energy Aware Scheduler Lukasz Luba
2020-02-20 9:56 ` [RESEND PATCH v2 1/2] ARM: dts: exynos: Add dynamic-power-coefficient to Exynos5422 CPUs Lukasz Luba
2020-02-20 9:56 ` Lukasz Luba [this message]
2020-02-20 18:00 ` [RESEND PATCH v2 0/2] Enable Odroid-XU3/4 to use Energy Model and Energy Aware Scheduler Krzysztof Kozlowski
2020-02-21 10:32 ` Lukasz Luba
2020-02-28 10:59 ` Marek Szyprowski
2020-02-28 12:00 ` Lukasz Luba
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