From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1751689AbbCKTdG (ORCPT <rfc822;w@1wt.eu>);
	Wed, 11 Mar 2015 15:33:06 -0400
Received: from mail.kernel.org ([198.145.29.136]:45785 "EHLO mail.kernel.org"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1750820AbbCKTdB (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Wed, 11 Mar 2015 15:33:01 -0400
Date: Wed, 11 Mar 2015 16:33:09 -0300
From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Adrian Hunter <adrian.hunter@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>, linux-kernel@vger.kernel.org,
        David Ahern <dsahern@gmail.com>,
        Frederic Weisbecker <fweisbec@gmail.com>, Jiri Olsa <jolsa@redhat.com>,
        Namhyung Kim <namhyung@gmail.com>, Paul Mackerras <paulus@samba.org>,
        Stephane Eranian <eranian@google.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>
Subject: Re: [PATCH V5 00/25] perf tools: Introduce an abstraction for
 Instruction Tracing
Message-ID: <20150311193309.GA926@kernel.org>
References: <1425762394-29799-1-git-send-email-adrian.hunter@intel.com>
 <55006579.4000402@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <55006579.4000402@intel.com>
X-Url: http://acmel.wordpress.com
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

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://git.infradead.org/users/ahunter/linux-perf.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