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Groups > linux.kernel > #1302421
| 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 |
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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[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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