From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: Thomas Renninger <trenn@suse.de>, linux-pm@vger.kernel.org
Cc: rafael.j.wysocki@intel.com, Len Brown <lenb@kernel.org>,
jacob.jun.pan@linux.intel.com
Subject: Re: Implement userspace RAPL bits in cpupower
Date: Fri, 05 Jun 2015 19:33:54 -0700 [thread overview]
Message-ID: <55725C12.2040604@linux.intel.com> (raw)
In-Reply-To: <1499120.6h7ZWas8bA@skinner>
On 06/05/2015 07:39 AM, Thomas Renninger wrote:
> Hi,
Hi,
> I'd like to ask whether there already exist userspace bits
> for the powercap/rapl drivers?
This is used in user space for Android for power saver mode and Linux
thermal daemon,.
Also there is a powermeter at
https://github.com/spandruvada/rapl_power_meter
>
> Afaik there is some "read-only"/monitor code in turbostat,
> but it is not intended to add any modifying code in there?
>
> I would like to avoid yet another (Intel) CPU specific
> userspace tool, like:
> tools/power/x86/x86_energy_perf_policy
> tools/power/x86/turbostat
>
> and it would be great if userspace bits could be added to
> cpupower utility
> tools/power/cpupower
> I searched for rapl and powercap in the MAINTAINERS list,
> but there wasn't any match. Is there a candidate (Jacob?) who
> might be the right one or who volunteers for this?
This is maintained by Rafael. Jacob and me are the authors/developers
for power capping and RAPL drivers.
Thanks,
Srinivas
> Thanks for any hints and any discussion input,
>
> Thomas
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prev parent reply other threads:[~2015-06-06 2:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-05 14:39 Implement userspace RAPL bits in cpupower Thomas Renninger
2015-06-05 16:21 ` Daniel Lezcano
2015-06-06 2:33 ` Srinivas Pandruvada [this message]
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