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Message-ID: <55434624.6060109@monom.org>
Date:	Fri, 01 May 2015 09:23:48 +0000
From:	Daniel Wagner <wagi@...om.org>
To:	Steven Rostedt <rostedt@...dmis.org>,
	Tom Zanussi <tom.zanussi@...ux.intel.com>
CC:	Daniel Wagner <daniel.wagner@...-carit.de>,
	Ingo Molnar <mingo@...hat.com>,
	Carsten Emde <C.Emde@...dl.org>,
	linux-rt-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFD 5/5] tracing: Add trace_irqsoff tracepoints

On 05/01/2015 02:54 AM, Steven Rostedt wrote:
> On Thu, 30 Apr 2015 21:14:52 -0500
> Tom Zanussi <tom.zanussi@...ux.intel.com> wrote:
>
>
>>> 'hist:key=latency.bucket:val=hitcount:sort=latency if cpu==0'
>>>
>>> but I haven't got this working. I didn't spend much time figuring out
>>> why this doesn't work. Even if the above is working you still
>>
>> I think it doesn't work because the tracepoint doesn't actually have a
>> 'cpu' field to use in the filter...
>
> Perhaps we should add special fields that don't use the tracepoint
> field, but can use generically know fields that are always known when
> the tracepoint is triggered. COMM could be one, as well as CPU.

I'll give it a try if no one objects next week (public holiday today :))

cheers,
daniel

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