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SubjectRe: [PATCH 0/4] CPUFreq: Implement per policy instances of governors
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On Monday, February 04, 2013 05:08:50 PM Viresh Kumar wrote:
> Currently, there can't be multiple instances of single governor_type. If we have
> a multi-package system, where we have multiple instances of struct policy (per
> package), we can't have multiple instances of same governor. i.e. We can't have
> multiple instances of ondemand governor for multiple packages.
>
> Governors directory in sysfs is created at /sys/devices/system/cpu/cpufreq/
> governor-name/. Which again reflects that there can be only one instance of a
> governor_type in the system.
>
> This is a bottleneck for multicluster system, where we want different packages
> to use same governor type, but with different tunables.
>
> This patchset is inclined towards fixing this issue.
>
> Viresh Kumar (4):
> cpufreq: Don't check cpu_online(policy->cpu)
> cpufreq: stats: Get rid of CPUFREQ_STATDEVICE_ATTR
> cpufreq: Add per policy governor-init/exit infrastructure
> cpufreq: governor: Implement per policy instances of governors

Well, [1-2/4] are things I can take for v3.9 no problem. The other two I'd
wait for the next cycle to be honest. We already have 30+ cpufreq patches
scheduled for v3.9 and some of them quite subtle for that matter.

Thanks,
Rafael


--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.


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