linux-kernel - Re: [GIT PULL] cpupower update for Linux 6.4-rc3

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Date:   Fri, 19 May 2023 16:28:28 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Shuah Khan <skhan@...uxfoundation.org>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>, shuah <shuah@...nel.org>,
        Thomas Renninger <trenn@...e.de>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] cpupower update for Linux 6.4-rc3

On Wed, May 17, 2023 at 8:26 PM Shuah Khan <skhan@...uxfoundation.org> wrote:
>
> Hi Rafael,
>
> Please pull the following cpupower update for Linux 6.4-rc3 or for
> a later rc.
>
> This cpupower fixes update for Linux 6.4-rc3 consists of:
>
> - a resource leak fix
> - fix drift in C0 percentage calculation due to System-wide TSC read.
>    To lower this drift read TSC per CPU and also just after mperf read.
>    This technique improves C0 percentage calculation in Mperf monitor
>
> diff is attached.
>
> thanks,
> -- Shuah
>
> ----------------------------------------------------------------
> The following changes since commit ac9a78681b921877518763ba0e89202254349d1b:
>
>    Linux 6.4-rc1 (2023-05-07 13:34:35 -0700)
>
> are available in the Git repository at:
>
>    git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux tags/linux-cpupower-6.4-rc3
>
> for you to fetch changes up to c2adb1877b76fc81ae041e1db1a6ed2078c6746b:
>
>    cpupower: Make TSC read per CPU for Mperf monitor (2023-05-08 10:46:49 -0600)
>
> ----------------------------------------------------------------
> linux-cpupower-6.4-rc3
>
> This cpupower fixes update for Linux 6.4-rc3 consists of:
>
> - a resource leak fix
> - fix drift in C0 percentage calculation due to System-wide TSC read.
>    To lower this drift read TSC per CPU and also just after mperf read.
>    This technique improves C0 percentage calculation in Mperf monitor
>
> ----------------------------------------------------------------
> Hao Zeng (1):
>        cpupower:Fix resource leaks in sysfs_get_enabled()
>
> Wyes Karny (1):
>        cpupower: Make TSC read per CPU for Mperf monitor
>
>   tools/power/cpupower/lib/powercap.c                | 23 +++++++++++-----
>   .../cpupower/utils/idle_monitor/mperf_monitor.c    | 31 ++++++++++------------
>   2 files changed, 30 insertions(+), 24 deletions(-)
>
> ----------------------------------------------------------------

Pulled, thanks!