From: Len Brown <lenb@kernel.org>
To: rjw@rjwysocki.net, linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [GIT PULL] power utilities update
Date: Thu, 11 May 2017 22:00:18 -0400 [thread overview]
Message-ID: <20170512020023.23204-1-lenb@kernel.org> (raw)
Hi Rafael,
Please pull these power utilities patches.
The x86_energy_perf_policy(8) utility grows the ability
to manage HWP.EPP (and Hardware P-states, in-general),
on top of its previous ability to manage EPB.
Linux-4.11 grew the ability to disable the cpufreq sub-system entirely
with "cpufreq.off=1". On such a system, this utility
is a convenient way to enable HWP with no kernel cpufreq overhead:
sudo x86_energy_perf_policy --cpu all normal
During this effort, we noticed the EPP defaults hard-coded
into the intel_state driver were not optimal, so those are updated too.
thanks!
Len Brown, Intel Open Source Technology Center
The following changes since commit c470abd4fde40ea6a0846a2beab642a578c0b8cd:
Linux 4.10 (2017-02-19 14:34:00 -0800)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git utilities
for you to fetch changes up to 3cedbc5a6d7f7c5539e139f89ec9f6e1ed668418:
intel_pstate: use updated msr-index.h HWP.EPP values (2017-05-11 21:27:53 -0400)
----------------------------------------------------------------
Len Brown (5):
x86: msr-index.h: define EPB mid-points
x86: msr-index.h: define HWP.EPP values
x86: msr-index.h: fix shifts to ULL results in HWP macros.
tools/power x86_energy_perf_policy: support HWP.EPP
intel_pstate: use updated msr-index.h HWP.EPP values
arch/x86/include/asm/msr-index.h | 18 +-
drivers/cpufreq/intel_pstate.c | 34 +-
tools/power/x86/x86_energy_perf_policy/Makefile | 27 +-
.../x86_energy_perf_policy.8 | 241 +++-
.../x86_energy_perf_policy.c | 1504 +++++++++++++++++---
5 files changed, 1527 insertions(+), 297 deletions(-)
next reply other threads:[~2017-05-12 2:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-12 2:00 Len Brown [this message]
2017-05-12 2:00 ` [PATCH 1/5] x86: msr-index.h: define EPB mid-points Len Brown
2017-05-12 2:00 ` [PATCH 2/5] x86: msr-index.h: define HWP.EPP values Len Brown
2017-05-12 2:00 ` [PATCH 3/5] x86: msr-index.h: fix shifts to ULL results in HWP macros Len Brown
2017-05-12 2:00 ` [PATCH 4/5] tools/power x86_energy_perf_policy: support HWP.EPP Len Brown
2017-05-12 2:00 ` [PATCH 5/5] intel_pstate: use updated msr-index.h HWP.EPP values Len Brown
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