Messages in this thread | | | From | Thomas Renninger <> | Subject | Re: [PATCH] trace power_frequency events on the correct cpu (for Intel x86 CPUs) | Date | Thu, 18 Mar 2010 21:43:22 +0100 |
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On Wednesday 17 March 2010 05:41:38 pm Arjan van de Ven wrote: > On 3/17/2010 9:36, Thomas Renninger wrote: > > On Tuesday 16 March 2010 17:40:18 Arjan van de Ven wrote: > >> On 3/16/2010 7:50, Thomas Renninger wrote: > >>> Still, as this is totally broken: > >>> - by design -> only one of a dozen cpufreq drivers is supported > >> > >> the one I care about is supported. > > > > And that's the problem, before it's not removed, you do not care to > > provide/suggest a proper solution that could fit others as well. > > why don't you provide the others then? Is it possible somehow to provide a kind of wrapper/backup function: trace_power_frequency_cpu(POWER_PSTATE, frequency, cpu); or another trace interface with eventually some more overhead? Then it should be easy to support all drivers. Otherwise you'll for example miss the pcc driver which supports latest/upcoming Intel CPUs and which does IO based switching which needs not to run on the cpu that gets switched.
Thomas
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