From: Lukasz Luba <lukasz.luba@arm.com>
To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org
Cc: lukasz.luba@arm.com, willy.mh.wolff.ml@gmail.com,
k.konieczny@samsung.com, cw00.choi@samsung.com,
b.zolnierkie@samsung.com, krzk@kernel.org, chanwoo@kernel.org,
myungjoo.ham@samsung.com, kyungmin.park@samsung.com,
s.nawrocki@samsung.com, kgene@kernel.org
Subject: [PATCH v2 1/2] memory: samsung: exynos5422-dmc: Adjust polling interval and uptreshold
Date: Fri, 10 Jul 2020 20:11:21 +0100 [thread overview]
Message-ID: <20200710191122.11029-2-lukasz.luba@arm.com> (raw)
In-Reply-To: <20200710191122.11029-1-lukasz.luba@arm.com>
In order to react faster and make better decisions under some workloads,
benchmarking the memory subsystem behavior, adjust the polling interval
and upthreshold value used by the simple_ondemand governor.
Reported-by: Willy Wolff <willy.mh.wolff.ml@gmail.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
---
drivers/memory/samsung/exynos5422-dmc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/memory/samsung/exynos5422-dmc.c b/drivers/memory/samsung/exynos5422-dmc.c
index 93e9c2429c0d..e03ee35f0ab5 100644
--- a/drivers/memory/samsung/exynos5422-dmc.c
+++ b/drivers/memory/samsung/exynos5422-dmc.c
@@ -1466,10 +1466,10 @@ static int exynos5_dmc_probe(struct platform_device *pdev)
* Setup default thresholds for the devfreq governor.
* The values are chosen based on experiments.
*/
- dmc->gov_data.upthreshold = 30;
+ dmc->gov_data.upthreshold = 10;
dmc->gov_data.downdifferential = 5;
- exynos5_dmc_df_profile.polling_ms = 500;
+ exynos5_dmc_df_profile.polling_ms = 100;
}
--
2.17.1
next prev parent reply other threads:[~2020-07-10 19:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200710191144epcas1p30f82bf6371f7f09a4e1ea1262234f392@epcas1p3.samsung.com>
2020-07-10 19:11 ` [PATCH v2 0/2] Exynos5422 DMC: adjust to new devfreq monitoring mechanism Lukasz Luba
2020-07-10 19:11 ` Lukasz Luba [this message]
2020-07-20 14:46 ` [PATCH v2 1/2] memory: samsung: exynos5422-dmc: Adjust polling interval and uptreshold Krzysztof Kozlowski
2020-07-27 8:20 ` Lukasz Luba
2020-07-10 19:11 ` [PATCH v2 2/2] memory: samsung: exynos5422-dmc: Add module param to control IRQ mode Lukasz Luba
2020-07-14 7:42 ` Bartlomiej Zolnierkiewicz
2020-07-14 9:01 ` Lukasz Luba
2020-07-14 9:32 ` Willy Wolff
2020-07-14 9:50 ` Lukasz Luba
2020-07-17 11:53 ` Lukasz Luba
2020-07-17 12:31 ` Bartlomiej Zolnierkiewicz
2020-07-20 14:46 ` Krzysztof Kozlowski
2020-08-03 15:30 ` Marek Szyprowski
2020-08-03 15:35 ` Marek Szyprowski
2020-08-04 8:06 ` Lukasz Luba
2020-07-24 1:40 ` [PATCH v2 0/2] Exynos5422 DMC: adjust to new devfreq monitoring mechanism Chanwoo Choi
2020-07-27 8:21 ` Lukasz Luba
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