From: Kamil Konieczny <k.konieczny@samsung.com>
To: k.konieczny@samsung.com
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
Kyungmin Park <kyungmin.park@samsung.com>,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
Marek Szyprowski <m.szyprowski@samsung.com>,
MyungJoo Ham <myungjoo.ham@samsung.com>
Subject: [PATCH v2 0/3] devfreq: improve devfreq statistics counting
Date: Wed, 4 Dec 2019 16:00:15 +0100 [thread overview]
Message-ID: <20191204150018.5234-1-k.konieczny@samsung.com> (raw)
In-Reply-To: CGME20191204150032eucas1p1c10713b3308e45e086dd66099057e2b6@eucas1p1.samsung.com
Hi,
this patch series tries to improve devfreq statistics:
- do conversion to use 64-bit jiffies for storing elapsed time and prevent
counters overflow,
- add ability to reset statistics using sysfs,
- move statistics data to separate structure for improved code
readability and maintenance.
Changes in v2:
- added Acked-by to first patch
- dropped spinlock patch, there is mutex used for protecting stats data
- rewrite clearing statistics, suggested by Chanwoo Choi: reuse
trans_stats sysfs file, any write to it will clear devfreq stats
- dropped change var name last_stat_updated
- squashed three last patches into one, as it turned out that freq_table
from devfreq_profile is used by other drivers
- rebased on linux-next
Kamil Konieczny (3):
devfreq: change time stats to 64-bit
devfreq: add clearing transitions stats
devfreq: move statistics to separate struct
drivers/devfreq/devfreq.c | 86 +++++++++++++++++++++++++++------------
include/linux/devfreq.h | 31 ++++++++++----
2 files changed, 81 insertions(+), 36 deletions(-)
--
2.24.0
next parent reply other threads:[~2019-12-04 15:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20191204150032eucas1p1c10713b3308e45e086dd66099057e2b6@eucas1p1.samsung.com>
2019-12-04 15:00 ` Kamil Konieczny [this message]
[not found] ` <CGME20191204150033eucas1p1bf11d36a89c89e3eb55c37a1a204e988@eucas1p1.samsung.com>
2019-12-04 15:00 ` [PATCH v2 1/3] devfreq: change time stats to 64-bit Kamil Konieczny
2019-12-05 0:27 ` Chanwoo Choi
2019-12-05 9:58 ` Kamil Konieczny
[not found] ` <CGME20191204150033eucas1p164374e7f15cb9a74b7432ca1a822dc10@eucas1p1.samsung.com>
2019-12-04 15:00 ` [PATCH v2 2/3] devfreq: add clearing transitions stats Kamil Konieczny
2019-12-05 0:38 ` Chanwoo Choi
2019-12-05 10:33 ` Kamil Konieczny
[not found] ` <CGME20191204150034eucas1p1b6e7f43a6be59ed2e0a4e55ccdefc750@eucas1p1.samsung.com>
2019-12-04 15:00 ` [PATCH v2 3/3] devfreq: move statistics to separate struct Kamil Konieczny
2019-12-05 0:28 ` Matthias Kaehlcke
2019-12-05 14:18 ` Kamil Konieczny
2019-12-05 1:46 ` Chanwoo Choi
2019-12-05 14:30 ` Kamil Konieczny
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