From: Viresh Kumar <viresh.kumar@linaro.org>
To: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Cc: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org,
rjw@rjwysocki.net, linux-pm@vger.kernel.org, pc@us.ibm.com,
anton@samba.org, ego@linux.vnet.ibm.com,
shreyas@linux.vnet.ibm.com, bsingharora@gmail.com,
mpe@ellerman.id.au
Subject: Re: [PATCH v7 0/6] cpufreq: powernv: Redesign the presentation of throttle notification and solve bug-fixes in the driver
Date: Thu, 28 Jan 2016 13:55:25 +0530 [thread overview]
Message-ID: <20160128082525.GG3935@vireshk> (raw)
In-Reply-To: <1453965941-7363-1-git-send-email-shilpa.bhat@linux.vnet.ibm.com>
On 28-01-16, 12:55, Shilpasri G Bhat wrote:
> 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 machines 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. And it also fixes couple of bugs reported in the driver.
>
> - Patch [1] fixes a memory leak bug
> - Patch [2] fixes the cpu hot-plug bug in powernv_cpufreq_work_fn().
> - Patch [3] solves a bug in powernv_cpufreq_throttle_check(), which
> calls in to cpu_to_chip_id() in hot path which reads DT every time
> to find the chip id.
> - Patches [4] to [6] will add a perf trace point
> "power:powernv_throttle" and sysfs throttle counter stats in
> /sys/devices/system/cpu/cpufreq/chipN.
>
> Changes from v6:
> - Changes wrt comments from Balbir Singh and Viresh Kumar.
Who cares about these names in version-log ?? You have completely
missed what should have been present here. This is version log and
that's what should be present here :)
And because of that, I have to
- search for your earlier version in my mailbox
- Read all my comments
- Haven't read what Balbir have said
See ..
--
viresh
next prev parent reply other threads:[~2016-01-28 8:25 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-28 7:25 [PATCH v7 0/6] cpufreq: powernv: Redesign the presentation of throttle notification and solve bug-fixes in the driver Shilpasri G Bhat
2016-01-28 7:25 ` [PATCH v7 1/6] cpufreq: powernv: Free 'chips' on module exit Shilpasri G Bhat
2016-01-28 8:00 ` Gautham R Shenoy
2016-01-28 8:27 ` Viresh Kumar
2016-01-28 7:25 ` [PATCH v7 2/6] cpufreq: powernv: Hot-plug safe the kworker thread Shilpasri G Bhat
2016-01-28 7:25 ` [PATCH v7 3/6] cpufreq: powernv: Remove cpu_to_chip_id() from hot-path Shilpasri G Bhat
2016-01-28 8:11 ` Gautham R Shenoy
2016-01-28 8:28 ` Viresh Kumar
2016-01-28 7:25 ` [PATCH v7 4/6] cpufreq: powernv/tracing: Add powernv_throttle tracepoint Shilpasri G Bhat
2016-01-28 7:25 ` [PATCH v7 5/6] cpufreq: powernv: Replace pr_info with trace print for throttle event Shilpasri G Bhat
2016-01-28 8:18 ` Gautham R Shenoy
2016-01-28 8:29 ` Viresh Kumar
2016-01-28 7:25 ` [PATCH v7 6/6] cpufreq: powernv: Add sysfs attributes to show throttle stats Shilpasri G Bhat
2016-01-28 8:34 ` Gautham R Shenoy
2016-01-28 8:40 ` Viresh Kumar
2016-01-28 9:36 ` Shilpasri G Bhat
2016-01-28 9:41 ` Viresh Kumar
2016-01-28 9:54 ` Shilpasri G Bhat
2016-01-28 11:40 ` Viresh Kumar
2016-01-28 8:25 ` Viresh Kumar [this message]
2016-01-28 11:10 ` [PATCH v7 0/6] cpufreq: powernv: Redesign the presentation of throttle notification and solve bug-fixes in the driver Balbir Singh
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