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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Jiri Olsa <jolsa@kernel.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
	David Ahern <dsahern@gmail.com>, Ingo Molnar <mingo@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	"Liang, Kan" <kan.liang@intel.com>
Subject: Re: [PATCH 03/52] perf tools: Add thread_map event
Date: Mon, 26 Oct 2015 14:48:25 -0300	[thread overview]
Message-ID: <20151026174825.GO27006@kernel.org> (raw)
In-Reply-To: <20151026174206.GN27006@kernel.org>

Em Mon, Oct 26, 2015 at 02:42:06PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Sun, Oct 25, 2015 at 03:51:19PM +0100, Jiri Olsa escreveu:
> > Adding thread_map event to pass/store thread maps
> > as data in pipe/perf.data.
> > 
> > Storing thread ID along with the standard comm[16]
> > thread name string.
> > 
> > Link: http://lkml.kernel.org/n/tip-2l07qyf3buhnt83q4ezqz5sj@git.kernel.org
> > Signed-off-by: Jiri Olsa <jolsa@kernel.org>
> > ---
> >  tools/perf/util/event.c   |  1 +
> >  tools/perf/util/event.h   | 13 +++++++++++++
> >  tools/perf/util/session.c | 26 ++++++++++++++++++++++++++
> >  tools/perf/util/tool.h    |  3 ++-
> >  4 files changed, 42 insertions(+), 1 deletion(-)
> > 
> > diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
> > index 8b10621b415c..771545a27b9b 100644
> > --- a/tools/perf/util/event.c
> > +++ b/tools/perf/util/event.c
> > @@ -37,6 +37,7 @@ static const char *perf_event__names[] = {
> >  	[PERF_RECORD_AUXTRACE_INFO]		= "AUXTRACE_INFO",
> >  	[PERF_RECORD_AUXTRACE]			= "AUXTRACE",
> >  	[PERF_RECORD_AUXTRACE_ERROR]		= "AUXTRACE_ERROR",
> > +	[PERF_RECORD_THREAD_MAP]		= "THREAD_MAP",
> >  };
> >  
> >  const char *perf_event__name(unsigned int id)
> > diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
> > index a0dbcbd4f6d8..f075f9ed0051 100644
> > --- a/tools/perf/util/event.h
> > +++ b/tools/perf/util/event.h
> > @@ -226,6 +226,7 @@ enum perf_user_event_type { /* above any possible kernel type */
> >  	PERF_RECORD_AUXTRACE_INFO		= 70,
> >  	PERF_RECORD_AUXTRACE			= 71,
> >  	PERF_RECORD_AUXTRACE_ERROR		= 72,
> > +	PERF_RECORD_THREAD_MAP			= 73,
> >  	PERF_RECORD_HEADER_MAX
> >  };
> >  
> > @@ -356,6 +357,17 @@ struct context_switch_event {
> >  	u32 next_prev_tid;
> >  };
> >  
> > +struct thread_map_data_event {
> 
> Humm, I think "data" here is way too vague here, how about
> "thread_map_event_entry"?
> 
> Moving of "entry" to the end also helps in understanding that this is
> not an "event" per se, it doesn't have the perv_event_header, etc, its
> just an entry in a 'struct thread_map_event'.
> 
> I'm tentatively doing this change in my local branch, please let me know
> if you have any reason to object to such a change,

The resulting patch, that I'm merging with this one:

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index f075f9ed0051..66f303e69c4d 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -357,7 +357,7 @@ struct context_switch_event {
 	u32 next_prev_tid;
 };
 
-struct thread_map_data_event {
+struct thread_map_event_entry {
 	u64	pid;
 	char	comm[16];
 };
@@ -365,7 +365,7 @@ struct thread_map_data_event {
 struct thread_map_event {
 	struct perf_event_header	header;
 	u64				nr;
-	struct thread_map_data_event	data[];
+	struct thread_map_event_entry	entries[];
 };
 
 union perf_event {
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index ec1ecd31003b..0aedce61f930 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -636,7 +636,7 @@ static void perf_event__thread_map_swap(union perf_event *event,
 	event->thread_map.nr = bswap_64(event->thread_map.nr);
 
 	for (i = 0; i < event->thread_map.nr; i++)
-		event->thread_map.data[i].pid = bswap_64(event->thread_map.data[i].pid);
+		event->thread_map.entries[i].pid = bswap_64(event->thread_map.entries[i].pid);
 }
 
 typedef void (*perf_event__swap_op)(union perf_event *event,

  parent reply	other threads:[~2015-10-26 17:48 UTC|newest]

Thread overview: 99+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-25 14:51 [PATCHv5 00/52] perf stat: Add scripting support Jiri Olsa
2015-10-25 14:51 ` [PATCH 01/52] perf cpu_map: Add cpu_map__empty_new function Jiri Olsa
2015-10-29  9:41   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 02/52] perf stat: Cache aggregated map entries in extra cpumap Jiri Olsa
2015-10-29  9:41   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 03/52] perf tools: Add thread_map event Jiri Olsa
2015-10-26 17:42   ` Arnaldo Carvalho de Melo
2015-10-26 17:45     ` Jiri Olsa
2015-10-26 17:48     ` Arnaldo Carvalho de Melo [this message]
2015-10-26 17:55       ` Jiri Olsa
2015-10-26 17:57         ` Arnaldo Carvalho de Melo
2015-12-18  9:00   ` [tip:perf/core] perf thread_map: Add thread_map user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 04/52] perf tools: Add thread_map event sythesize function Jiri Olsa
2015-12-18  9:00   ` [tip:perf/core] perf thread_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 05/52] perf tools: Add thread_map__new_event function Jiri Olsa
2015-12-18  9:01   ` [tip:perf/core] perf thread_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 06/52] perf tools: Add perf_event__fprintf_thread_map function Jiri Olsa
2015-12-18  9:01   ` [tip:perf/core] perf thread_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 07/52] perf tools: Add cpu_map event Jiri Olsa
2015-12-18  9:01   ` [tip:perf/core] perf cpu_map: Add cpu_map user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 08/52] perf tools: Add cpu_map event synthesize function Jiri Olsa
2015-12-18  9:02   ` [tip:perf/core] perf cpu_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 09/52] perf tools: Add cpu_map__new_event function Jiri Olsa
2015-12-18  9:02   ` [tip:perf/core] perf cpu_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 10/52] perf tools: Add perf_event__fprintf_cpu_map function Jiri Olsa
2015-12-18  9:02   ` [tip:perf/core] perf cpu_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 11/52] perf tools: Add stat config event Jiri Olsa
2015-10-27 13:16   ` Arnaldo Carvalho de Melo
2015-10-27 13:30     ` Jiri Olsa
2015-10-27 13:44       ` Arnaldo Carvalho de Melo
2015-10-27 13:51         ` Jiri Olsa
2015-10-27 14:13           ` Arnaldo Carvalho de Melo
2015-12-18  9:03   ` [tip:perf/core] perf tools: Add stat config user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 12/52] perf tools: Add stat config event synthesize function Jiri Olsa
2015-12-18  9:03   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 13/52] perf tools: Add stat config event read function Jiri Olsa
2015-12-18  9:03   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 14/52] perf tools: Add stat event Jiri Olsa
2015-12-18  9:04   ` [tip:perf/core] perf tools: Add stat user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 15/52] perf tools: Add stat event synthesize function Jiri Olsa
2015-12-18  9:04   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 16/52] perf tools: Add stat event read function Jiri Olsa
2015-12-18  9:04   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 17/52] perf tools: Add stat round event Jiri Olsa
2015-12-18  9:05   ` [tip:perf/core] perf tools: Add stat round user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 18/52] perf tools: Add stat round event synthesize function Jiri Olsa
2015-12-18  9:05   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 19/52] perf tools: Add stat events fprintf functions Jiri Olsa
2015-12-18  9:05   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 20/52] perf tools: Add event_update event Jiri Olsa
2015-12-18  9:06   ` [tip:perf/core] perf tools: Add event_update user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 21/52] perf tools: Add event_update event unit type Jiri Olsa
2015-12-18  9:06   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 22/52] perf tools: Add event_update event scale type Jiri Olsa
2015-12-18  9:06   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 23/52] perf tools: Add event_update event name type Jiri Olsa
2015-12-18  9:07   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 24/52] perf tools: Add event_update event cpus type Jiri Olsa
2015-12-18  9:07   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 25/52] perf tools: Add perf_event__fprintf_event_update function Jiri Olsa
2015-12-18  9:07   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 26/52] perf report: Display newly added events in raw dump Jiri Olsa
2015-12-18  9:07   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 27/52] perf tools: Introduce stat feature Jiri Olsa
2015-12-18  9:08   ` [tip:perf/core] perf tools: Introduce stat perf.data header feature tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 28/52] perf tools: Move id_offset out of struct perf_evsel union Jiri Olsa
2015-10-29  9:40   ` [tip:perf/core] perf evsel: Move id_offset out of struct perf_evsel union member tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 29/52] perf stat record: Add record command Jiri Olsa
2015-10-27 14:26   ` Arnaldo Carvalho de Melo
2015-10-25 14:51 ` [PATCH 30/52] perf stat record: Initialize record features Jiri Olsa
2015-10-25 14:51 ` [PATCH 31/52] perf stat record: Synthesize stat record data Jiri Olsa
2015-10-27 14:42   ` Arnaldo Carvalho de Melo
2015-10-28 12:15     ` Jiri Olsa
2015-10-28 13:03     ` Jiri Olsa
2015-10-28 13:04     ` Jiri Olsa
2015-10-25 14:51 ` [PATCH 32/52] perf stat record: Store events IDs in perf data file Jiri Olsa
2015-10-25 14:51 ` [PATCH 33/52] perf stat record: Add pipe support for record command Jiri Olsa
2015-10-25 14:51 ` [PATCH 34/52] perf stat record: Write stat events on record Jiri Olsa
2015-10-25 14:51 ` [PATCH 35/52] perf stat record: Write stat round " Jiri Olsa
2015-10-25 14:51 ` [PATCH 36/52] perf stat record: Do not allow record with multiple runs mode Jiri Olsa
2015-10-25 14:51 ` [PATCH 37/52] perf stat record: Synthesize event update events Jiri Olsa
2015-10-25 14:51 ` [PATCH 38/52] perf stat report: Add report command Jiri Olsa
2015-10-25 14:51 ` [PATCH 39/52] perf stat report: Process cpu/threads maps Jiri Olsa
2015-10-25 14:51 ` [PATCH 40/52] perf stat report: Process stat config event Jiri Olsa
2015-10-25 14:51 ` [PATCH 41/52] perf stat report: Add support to initialize aggr_map from file Jiri Olsa
2015-10-25 14:51 ` [PATCH 42/52] perf stat report: Process stat and stat round events Jiri Olsa
2015-10-25 14:51 ` [PATCH 43/52] perf stat report: Process event update events Jiri Olsa
2015-10-25 14:52 ` [PATCH 44/52] perf stat report: Move csv_sep initialization before report command Jiri Olsa
2015-10-25 14:52 ` [PATCH 45/52] perf stat report: Allow to override aggr_mode Jiri Olsa
2015-10-25 14:52 ` [PATCH 46/52] perf script: Process cpu/threads maps Jiri Olsa
2015-10-25 14:52 ` [PATCH 47/52] perf script: Process stat config event Jiri Olsa
2015-10-25 14:52 ` [PATCH 48/52] perf script: Add process_stat/process_stat_interval scripting interface Jiri Olsa
2015-10-25 14:52 ` [PATCH 49/52] perf script: Add stat default handlers Jiri Olsa
2015-10-25 14:52 ` [PATCH 50/52] perf script: Display stat events by default Jiri Olsa
2015-10-25 14:52 ` [PATCH 51/52] perf script: Add python support for stat events Jiri Olsa
2015-10-25 14:52 ` [PATCH 52/52] perf script: Add stat-cpi.py script Jiri Olsa
2015-10-26 17:34 ` [PATCHv5 00/52] perf stat: Add scripting support Arnaldo Carvalho de Melo
2015-10-27 14:24   ` Liang, Kan
2015-10-27 14:48     ` Arnaldo Carvalho de Melo

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