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Re: [PATCH v3 0/2] cpufreq: powernv: Redesign the presentation of throttle notification

From Stewart Smith <stewart@linux.vnet.ibm.com>
Newsgroups linux.kernel
Subject Re: [PATCH v3 0/2] cpufreq: powernv: Redesign the presentation of throttle notification
Date 2016-01-06 08:00 +0100
Message-ID <qNQeC-61Y-1@gated-at.bofh.it> (permalink)
References <qMgmS-8i1-7@gated-at.bofh.it> <qN9CF-1zZ-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> writes:
> In POWER8, OCC(On-Chip-Controller) can throttle the frequency of the
> CPU when the chip crosses its thermal and power limits. Currently,
> powernv-cpufreq driver detects and reports this event as a console
> message. Some boxes may not sustain the max turbo frequency in all
> conditions and can be throttled frequently. This can lead to the
> flooding of console with throttle messages. So this patchset aims to
> redesign the presentation of this event via sysfs counters and
> tracepoints.

This likely should CC stable@ as we have seen this on some machines, at
least in the lab.

-- 
Stewart Smith
OPAL Architect, IBM.

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Thread

[PATCH v3 0/2] cpufreq: powernv: Redesign the presentation of throttle notification Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> - 2016-01-04 10:30 +0100
  [PATCH v3 2/2] cpufreq: powernv: Redesign the presentation of throttle notification Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> - 2016-01-04 10:30 +0100
  [PATCH v3 1/2] cpufreq: powernv/tracing: Add powernv_throttle tracepoint Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> - 2016-01-04 10:30 +0100
  Re: [PATCH v3 0/2] cpufreq: powernv: Redesign the presentation of throttle notification Stewart Smith <stewart@linux.vnet.ibm.com> - 2016-01-06 08:00 +0100
  [PATCH v4 4/4] cpufreq: powernv: Add sysfs attributes to show throttle stats Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> - 2016-01-11 22:00 +0100
  [PATCH v4 2/4] cpufreq: powernv/tracing: Add powernv_throttle tracepoint Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> - 2016-01-11 22:00 +0100
  [PATCH v4 1/4] cpufreq: powernv: Remove cpu_to_chip_id() from hot-path Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> - 2016-01-11 22:00 +0100
  [PATCH v4 0/4] cpufreq: powernv: Redesign the presentation of throttle notification Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> - 2016-01-11 22:00 +0100
    [PATCH v4 3/4] cpufreq: powernv: Add a trace print for the throttle event Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> - 2016-01-11 22:00 +0100
    Re: [PATCH v4 0/4] cpufreq: powernv: Redesign the presentation of  throttle notification Greg KH <gregkh@linuxfoundation.org> - 2016-01-11 23:30 +0100
      Re: [PATCH v4 0/4] cpufreq: powernv: Redesign the presentation of  throttle notification Viresh Kumar <viresh.kumar@linaro.org> - 2016-01-12 03:40 +0100

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