Re: [RFD 5/5] tracing: Add trace_irqsoff tracepoints

[Daniel Wagner]

On 05/01/2015 02:54 AM, Steven Rostedt wrote:
> On Thu, 30 Apr 2015 21:14:52 -0500
> Tom Zanussi <tom.zanussi@xxxxxxxxxxxxxxx> 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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