Re: [PATCH V5 00/25] perf tools: Introduce an abstraction for Instruction Tracing

From: Arnaldo Carvalho de Melo
Date: Wed Mar 11 2015 - 15:33:15 EST

Em Wed, Mar 11, 2015 at 05:55:37PM +0200, Adrian Hunter escreveu:
> On 7/03/2015 11:06 p.m., Adrian Hunter wrote:
> >Hi
> >
> >Here is V5 of some more preparatory patches for Intel PT
> >that introduce an abstraction for Instruction tracing.
> >
> >The Intel PT driver is not yet in tip.
> >
> >Peter, could we please have Alex's 14 patches applied to
> >tip?
> Peter, I know you are really busy, but it would be helpful to know
> what you plan to do?
> >
> >The master branch of the tree:
> >
> > git://
> >
> >contains these patches plus Intel PT and BTS and the kernel driver.
> >
> >Arnaldo, I have re-based on tip because of the conflict
> >with your ordered-events changes. I will have a closer look
> >at that next week.
> I took a closer look and resolved the conflict by introducing:
> static int perf_session__deliver_ordered_event(struct ordered_events *oe,
> struct ordered_event *event,
> struct perf_sample *sample)
> {
> struct perf_session *session =
> container_of(oe, struct perf_session, ordered_events);
> return perf_session__deliver_event(session, event->event, sample,
> oe->tool, event->file_offset);
> }

That would clash again, as in my tree I have it as:

static int perf_session__deliver_event(struct ordered_events *oe,
struct ordered_event *event,
struct perf_sample *sample)
return machines__deliver_event(oe->machines, oe->evlist, event->event,
sample, oe->tool, event->file_offset);

Which is a misnomer really, as by now it has nothing to do with a
perf_session, its all about ordered_event to a ordered_events.

We'll get that sorted out eventually. Sorry for the flux, but its trying
to get it to a better, more fine grained state.

> I will send another revision of the patch set, but I am also
> considered renaming everything from "itrace" to something more
> generic. Possibly "auxtrace" or "hwtrace". Any preferences?

That should match whatever name is used for the kernel facility it will
handle.... both auxtrace and hwtrace looks too ambiguous...

cputrace perhaps?

- Arnaldo
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