Re: [PATCH 4/4] PERF: fix power:cpu_idle double end events

[Thomas Renninger <trenn@suse.de>]

Hi Robert,

On Monday 01 November 2010 09:11:28 Robert Schöne wrote:
> Am Mittwoch, den 27.10.2010, 17:42 +0200 schrieb Thomas Renninger:
> 
> > Robert: I expect you tested this on a machine with no cpuidle
> > driver registered?
> 
> You're right, there was no idle driver, but the idle process from
> process_64.c which called the idle routine.
> I reported my thoughts on this on 14th of May this year 2010, mostly
> claiming for a standard on where to report these events.
> 
> You're also missing the other idle routines from x86/kernel/process.c
> mwait_idle_with_hints and mwait_idle only throw start events, so they
> should behave like default_idle. poll_idle on the other hand reports
> the end event itself.
I added you to CC of a patch that fixes the issue (and all other double 
or missing (for acpi_idle driver) events) in a nice generic way.
It needs further userspace adjustings and I still wait for this
separate patch series to go into some branch.

Thanks,

   Thomas


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