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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-08-07 09:58:03 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-08-07 23:43:37 -0300 |
commit | fcf65bf149afa91b875ffde4455967cb63ee0be9 (patch) | |
tree | 9b6137e60d4142b1aa00f9e20860bdd8374035d3 /tools/perf/builtin-script.c | |
parent | 8b6ee4c5d48d93527dcf6e36c51cbb7703d7fffb (diff) | |
download | linux-fcf65bf149afa91b875ffde4455967cb63ee0be9.tar.gz linux-fcf65bf149afa91b875ffde4455967cb63ee0be9.tar.bz2 linux-fcf65bf149afa91b875ffde4455967cb63ee0be9.zip |
perf evsel: Cache associated event_format
We already lookup the associated event_format when reading the perf.data
header, so that we can cache the tracepoint name in evsel->name, so do
it a little further and save the event_format itself, so that we can
avoid relookups in tools that need to access it.
Change the tools to take the most obvious advantage, when they were
using pevent_find_event directly. More work is needed for further
removing the need of a pointer to pevent, such as when asking for event
field values ("common_pid" and the other common fields and per
event_format fields).
This is something that was planned but only got actually done when
Andrey Wagin needed to do this lookup at perf_tool->sample() time, when
we don't have access to pevent (session->pevent) to use with
pevent_find_event().
Cc: Andrey Wagin <avagin@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/n/tip-txkvew2ckko0b594ae8fbnyk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-script.c')
-rw-r--r-- | tools/perf/builtin-script.c | 29 |
1 files changed, 6 insertions, 23 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 1e60ab70b2b1..8dba4707b03f 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -262,14 +262,11 @@ static int perf_session__check_output_opt(struct perf_session *session) return 0; } -static void print_sample_start(struct pevent *pevent, - struct perf_sample *sample, +static void print_sample_start(struct perf_sample *sample, struct thread *thread, struct perf_evsel *evsel) { - int type; struct perf_event_attr *attr = &evsel->attr; - struct event_format *event; const char *evname = NULL; unsigned long secs; unsigned long usecs; @@ -307,20 +304,7 @@ static void print_sample_start(struct pevent *pevent, } if (PRINT_FIELD(EVNAME)) { - if (attr->type == PERF_TYPE_TRACEPOINT) { - /* - * XXX Do we really need this here? - * perf_evlist__set_tracepoint_names should have done - * this already - */ - type = trace_parse_common_type(pevent, - sample->raw_data); - event = pevent_find_event(pevent, type); - if (event) - evname = event->name; - } else - evname = perf_evsel__name(evsel); - + evname = perf_evsel__name(evsel); printf("%s: ", evname ? evname : "[unknown]"); } } @@ -416,7 +400,7 @@ static void print_sample_bts(union perf_event *event, } static void process_event(union perf_event *event __unused, - struct pevent *pevent, + struct pevent *pevent __unused, struct perf_sample *sample, struct perf_evsel *evsel, struct machine *machine, @@ -427,7 +411,7 @@ static void process_event(union perf_event *event __unused, if (output[attr->type].fields == 0) return; - print_sample_start(pevent, sample, thread, evsel); + print_sample_start(sample, thread, evsel); if (is_bts_event(attr)) { print_sample_bts(event, sample, evsel, machine, thread); @@ -435,9 +419,8 @@ static void process_event(union perf_event *event __unused, } if (PRINT_FIELD(TRACE)) - print_trace_event(pevent, sample->cpu, sample->raw_data, - sample->raw_size); - + event_format__print(evsel->tp_format, sample->cpu, + sample->raw_data, sample->raw_size); if (PRINT_FIELD(ADDR)) print_sample_addr(event, sample, machine, thread, attr); |