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From: Fabio Baltieri <fabio.baltieri-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
To: Viresh Kumar <viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: linaro-dev-cunTk1MwBs8s++Sfvej+rw@public.gmane.org,
	linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	cpufreq-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	rjw-KKrjLPT3xs0@public.gmane.org,
	Steve.Bannister-5wv7dgnIgG8@public.gmane.org
Subject: Re: [PATCH 1/2] cpufreq: governors: Get rid of dbs_data->enable field
Date: Thu, 31 Jan 2013 19:44:49 +0100	[thread overview]
Message-ID: <20130131184449.GA20164@balto.lan> (raw)
In-Reply-To: <09a94ff044ff6a6f7a5d953c3b1f3102c1dc50cf.1359653181.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

On Thu, Jan 31, 2013 at 10:58:01PM +0530, Viresh Kumar wrote:
> CPUFREQ_GOV_START/STOP are called only once for all policy->cpus and hence we
> don't need to adapt cpufreq_governor_dbs() routine for multiple calls.
> 
> So, this patch removes dbs_data->enable field entirely. And rearrange code a
> bit.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> ---
> Hi Fabio,
> 
> I have fixed all the pending issues, but haven't checked these patches. Can you
> please add your tested-by (obviously after testing them) ?
> 
> Compile tested only.

Hello Viresh, thanks for getting this done... looks much cleaner now!

I tested both patches on my ux500 setup (dual Cortex-A9) and it seems to
run correctly on both CPU load changes and CPU hotplug, so:

Tested-by: Fabio Baltieri <fabio.baltieri-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

As a sidenote, I noticed just now that since:

bc92bea cpufreq: Notify governors when cpus are hot-[un]plugged

governor's sampling_rate gets reset to default every time you hotplug a
CPU (the one you read/write on
/sys/devices/system/cpu/cpufreq/ondemand/sampling_rate).

If you need further tests, I'll be back on Monday.

Thanks,
Fabio

-- 
Fabio Baltieri

WARNING: multiple messages have this Message-ID (diff)
From: Fabio Baltieri <fabio.baltieri@linaro.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: rjw@sisk.pl, cpufreq@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-kernel@vger.kernel.org, linaro-dev@lists.linaro.org,
	robin.randhawa@arm.com, Steve.Bannister@arm.com,
	Liviu.Dudau@arm.com
Subject: Re: [PATCH 1/2] cpufreq: governors: Get rid of dbs_data->enable field
Date: Thu, 31 Jan 2013 19:44:49 +0100	[thread overview]
Message-ID: <20130131184449.GA20164@balto.lan> (raw)
In-Reply-To: <09a94ff044ff6a6f7a5d953c3b1f3102c1dc50cf.1359653181.git.viresh.kumar@linaro.org>

On Thu, Jan 31, 2013 at 10:58:01PM +0530, Viresh Kumar wrote:
> CPUFREQ_GOV_START/STOP are called only once for all policy->cpus and hence we
> don't need to adapt cpufreq_governor_dbs() routine for multiple calls.
> 
> So, this patch removes dbs_data->enable field entirely. And rearrange code a
> bit.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
> ---
> Hi Fabio,
> 
> I have fixed all the pending issues, but haven't checked these patches. Can you
> please add your tested-by (obviously after testing them) ?
> 
> Compile tested only.

Hello Viresh, thanks for getting this done... looks much cleaner now!

I tested both patches on my ux500 setup (dual Cortex-A9) and it seems to
run correctly on both CPU load changes and CPU hotplug, so:

Tested-by: Fabio Baltieri <fabio.baltieri@linaro.org>

As a sidenote, I noticed just now that since:

bc92bea cpufreq: Notify governors when cpus are hot-[un]plugged

governor's sampling_rate gets reset to default every time you hotplug a
CPU (the one you read/write on
/sys/devices/system/cpu/cpufreq/ondemand/sampling_rate).

If you need further tests, I'll be back on Monday.

Thanks,
Fabio

-- 
Fabio Baltieri

  parent reply	other threads:[~2013-01-31 18:44 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-31 17:28 [PATCH 1/2] cpufreq: governors: Get rid of dbs_data->enable field Viresh Kumar
     [not found] ` <09a94ff044ff6a6f7a5d953c3b1f3102c1dc50cf.1359653181.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2013-01-31 17:28   ` [PATCH 2/2] cpufreq: governors: Remove code redundancy between governors Viresh Kumar
2013-01-31 17:28     ` Viresh Kumar
2013-01-31 18:50     ` Fabio Baltieri
2013-01-31 22:23       ` Rafael J. Wysocki
2013-01-31 22:51         ` Fabio Baltieri
2013-02-01  2:31           ` Viresh Kumar
2013-02-01  2:38             ` Viresh Kumar
2013-02-01 22:32               ` Rafael J. Wysocki
2013-01-31 17:29   ` [PATCH 1/2] cpufreq: governors: Get rid of dbs_data->enable field Viresh Kumar
2013-01-31 17:29     ` Viresh Kumar
2013-01-31 18:44   ` Fabio Baltieri [this message]
2013-01-31 18:44     ` Fabio Baltieri
2013-02-01  3:52     ` Viresh Kumar
2013-02-01  6:44       ` Viresh Kumar

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