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Message-Id: <1300920767-936-2-git-send-email-acme@infradead.org>
Date: Wed, 23 Mar 2011 19:52:45 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...e.hu>
Cc: linux-kernel@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Frederic Weisbecker <fweisbec@...il.com>,
Ingo Molnar <mingo@...e.hu>, Mike Galbraith <efault@....de>,
Paul Mackerras <paulus@...ba.org>,
Peter Zijlstra <peterz@...radead.org>,
Stephane Eranian <eranian@...gle.com>,
Tom Zanussi <tzanussi@...il.com>
Subject: [PATCH 1/3] perf session: Pass evsel in event_ops->sample()
From: Arnaldo Carvalho de Melo <acme@...hat.com>
Resolving the sample->id to an evsel since the most advanced tools,
report and annotate, and the others will too when they evolve to
properly support multi-event perf.data files.
Good also because it does an extra validation, checking that the ID is
valid when present. When that is not the case, the overhead is just a
branch + function call (perf_evlist__id2evsel).
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Tom Zanussi <tzanussi@...il.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/builtin-annotate.c | 18 +++-----------
tools/perf/builtin-diff.c | 1 +
tools/perf/builtin-inject.c | 11 ++++++++-
tools/perf/builtin-kmem.c | 1 +
tools/perf/builtin-lock.c | 4 ++-
tools/perf/builtin-report.c | 19 +++------------
tools/perf/builtin-sched.c | 1 +
tools/perf/builtin-script.c | 15 +++--------
tools/perf/builtin-timechart.c | 11 ++++++++
tools/perf/util/build-id.c | 1 +
tools/perf/util/hist.h | 1 +
.../perf/util/scripting-engines/trace-event-perl.c | 1 +
.../util/scripting-engines/trace-event-python.c | 1 +
tools/perf/util/session.c | 25 ++++++++++++++++++-
tools/perf/util/session.h | 7 ++++-
tools/perf/util/trace-event-scripting.c | 1 +
tools/perf/util/trace-event.h | 1 +
17 files changed, 73 insertions(+), 46 deletions(-)
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 695de4b..e18eb7e 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -42,9 +42,9 @@ static const char *sym_hist_filter;
static int perf_evlist__add_sample(struct perf_evlist *evlist,
struct perf_sample *sample,
+ struct perf_evsel *evsel,
struct addr_location *al)
{
- struct perf_evsel *evsel;
struct hist_entry *he;
int ret;
@@ -59,18 +59,6 @@ static int perf_evlist__add_sample(struct perf_evlist *evlist,
return 0;
}
- evsel = perf_evlist__id2evsel(evlist, sample->id);
- if (evsel == NULL) {
- /*
- * FIXME: Propagate this back, but at least we're in a builtin,
- * where exit() is allowed. ;-)
- */
- ui__warning("Invalid %s file, contains samples with id not in "
- "its header!\n", input_name);
- exit_browser(0);
- exit(1);
- }
-
he = __hists__add_entry(&evsel->hists, al, NULL, 1);
if (he == NULL)
return -ENOMEM;
@@ -92,6 +80,7 @@ static int perf_evlist__add_sample(struct perf_evlist *evlist,
static int process_sample_event(union perf_event *event,
struct perf_sample *sample,
+ struct perf_evsel *evsel,
struct perf_session *session)
{
struct addr_location al;
@@ -103,7 +92,8 @@ static int process_sample_event(union perf_event *event,
return -1;
}
- if (!al.filtered && perf_evlist__add_sample(session->evlist, sample, &al)) {
+ if (!al.filtered &&
+ perf_evlist__add_sample(session->evlist, sample, evsel, &al)) {
pr_warning("problem incrementing symbol count, "
"skipping event\n");
return -1;
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 6b7d911..e821999 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -32,6 +32,7 @@ static int hists__add_entry(struct hists *self,
static int diff__process_sample_event(union perf_event *event,
struct perf_sample *sample,
+ struct perf_evsel *evsel __used,
struct perf_session *session)
{
struct addr_location al;
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index e29f04e..8dfc12b 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -43,6 +43,14 @@ static int perf_event__repipe(union perf_event *event,
return perf_event__repipe_synth(event, session);
}
+static int perf_event__repipe_sample(union perf_event *event,
+ struct perf_sample *sample __used,
+ struct perf_evsel *evsel __used,
+ struct perf_session *session)
+{
+ return perf_event__repipe_synth(event, session);
+}
+
static int perf_event__repipe_mmap(union perf_event *event,
struct perf_sample *sample,
struct perf_session *session)
@@ -124,6 +132,7 @@ static int dso__inject_build_id(struct dso *self, struct perf_session *session)
static int perf_event__inject_buildid(union perf_event *event,
struct perf_sample *sample,
+ struct perf_evsel *evsel __used,
struct perf_session *session)
{
struct addr_location al;
@@ -164,7 +173,7 @@ repipe:
}
struct perf_event_ops inject_ops = {
- .sample = perf_event__repipe,
+ .sample = perf_event__repipe_sample,
.mmap = perf_event__repipe,
.comm = perf_event__repipe,
.fork = perf_event__repipe,
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 7f618f4..225e963 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -305,6 +305,7 @@ static void process_raw_event(union perf_event *raw_event __used, void *data,
static int process_sample_event(union perf_event *event,
struct perf_sample *sample,
+ struct perf_evsel *evsel __used,
struct perf_session *session)
{
struct thread *thread = perf_session__findnew(session, event->ip.pid);
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 7a2a79d..9ac05aa 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -845,7 +845,9 @@ static void dump_info(void)
die("Unknown type of information\n");
}
-static int process_sample_event(union perf_event *event, struct perf_sample *sample,
+static int process_sample_event(union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_evsel *evsel __used,
struct perf_session *s)
{
struct thread *thread = perf_session__findnew(s, sample->tid);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index b1b8200..498c6f7 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -50,12 +50,12 @@ static symbol_filter_t annotate_init;
static int perf_session__add_hist_entry(struct perf_session *session,
struct addr_location *al,
- struct perf_sample *sample)
+ struct perf_sample *sample,
+ struct perf_evsel *evsel)
{
struct symbol *parent = NULL;
int err = 0;
struct hist_entry *he;
- struct perf_evsel *evsel;
if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
err = perf_session__resolve_callchain(session, al->thread,
@@ -64,18 +64,6 @@ static int perf_session__add_hist_entry(struct perf_session *session,
return err;
}
- evsel = perf_evlist__id2evsel(session->evlist, sample->id);
- if (evsel == NULL) {
- /*
- * FIXME: Propagate this back, but at least we're in a builtin,
- * where exit() is allowed. ;-)
- */
- ui__warning("Invalid %s file, contains samples with id %" PRIu64 " not in "
- "its header!\n", input_name, sample->id);
- exit_browser(0);
- exit(1);
- }
-
he = __hists__add_entry(&evsel->hists, al, parent, sample->period);
if (he == NULL)
return -ENOMEM;
@@ -113,6 +101,7 @@ out:
static int process_sample_event(union perf_event *event,
struct perf_sample *sample,
+ struct perf_evsel *evsel,
struct perf_session *session)
{
struct addr_location al;
@@ -127,7 +116,7 @@ static int process_sample_event(union perf_event *event,
if (al.filtered || (hide_unresolved && al.sym == NULL))
return 0;
- if (perf_session__add_hist_entry(session, &al, sample)) {
+ if (perf_session__add_hist_entry(session, &al, sample, evsel)) {
pr_debug("problem incrementing symbol period, skipping event\n");
return -1;
}
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index a32f411..dcfe887 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1603,6 +1603,7 @@ static void process_raw_event(union perf_event *raw_event __used,
static int process_sample_event(union perf_event *event,
struct perf_sample *sample,
+ struct perf_evsel *evsel __used,
struct perf_session *session)
{
struct thread *thread;
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 9f5fc54..ac574ea 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -162,19 +162,11 @@ static void print_sample_start(struct perf_sample *sample,
static void process_event(union perf_event *event __unused,
struct perf_sample *sample,
+ struct perf_evsel *evsel,
struct perf_session *session,
struct thread *thread)
{
- struct perf_event_attr *attr;
- struct perf_evsel *evsel;
-
- evsel = perf_evlist__id2evsel(session->evlist, sample->id);
- if (evsel == NULL) {
- pr_err("Invalid data. Contains samples with id not in "
- "its header!\n");
- return;
- }
- attr = &evsel->attr;
+ struct perf_event_attr *attr = &evsel->attr;
if (output_fields[attr->type] == 0)
return;
@@ -244,6 +236,7 @@ static char const *input_name = "perf.data";
static int process_sample_event(union perf_event *event,
struct perf_sample *sample,
+ struct perf_evsel *evsel,
struct perf_session *session)
{
struct thread *thread = perf_session__findnew(session, event->ip.pid);
@@ -264,7 +257,7 @@ static int process_sample_event(union perf_event *event,
last_timestamp = sample->time;
return 0;
}
- scripting_ops->process_event(event, sample, session, thread);
+ scripting_ops->process_event(event, sample, evsel, session, thread);
session->hists.stats.total_period += sample->period;
return 0;
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 67c0459..aa26f4d 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -488,6 +488,7 @@ static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te)
static int process_sample_event(union perf_event *event __used,
struct perf_sample *sample,
+ struct perf_evsel *evsel __used,
struct perf_session *session)
{
struct trace_entry *te;
@@ -506,6 +507,16 @@ static int process_sample_event(union perf_event *event __used,
struct power_entry_old *peo;
peo = (void *)te;
#endif
+ /*
+ * FIXME: use evsel, its already mapped from id to perf_evsel,
+ * remove perf_header__find_event infrastructure bits.
+ * Mapping all these "power:cpu_idle" strings to the tracepoint
+ * ID and then just comparing against evsel->attr.config.
+ *
+ * e.g.:
+ *
+ * if (evsel->attr.config == power_cpu_idle_id)
+ */
event_str = perf_header__find_event(te->type);
if (!event_str)
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 31f934a..a91cd99 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -16,6 +16,7 @@
static int build_id__mark_dso_hit(union perf_event *event,
struct perf_sample *sample __used,
+ struct perf_evsel *evsel __used,
struct perf_session *session)
{
struct addr_location al;
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index cb6858a..3beb97c 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -29,6 +29,7 @@ struct events_stats {
u32 nr_events[PERF_RECORD_HEADER_MAX];
u32 nr_unknown_events;
u32 nr_invalid_chains;
+ u32 nr_unknown_id;
};
enum hist_column {
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 6214272..74350ff 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -247,6 +247,7 @@ static inline struct event *find_cache_event(int type)
static void perl_process_event(union perf_event *pevent __unused,
struct perf_sample *sample,
+ struct perf_evsel *evsel,
struct perf_session *session __unused,
struct thread *thread)
{
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 1b85d60..6ccf70e 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -206,6 +206,7 @@ static inline struct event *find_cache_event(int type)
static void python_process_event(union perf_event *pevent __unused,
struct perf_sample *sample,
+ struct perf_evsel *evsel __unused,
struct perf_session *session __unused,
struct thread *thread)
{
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index c68cf40..caa2245 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -280,6 +280,15 @@ static int process_event_synth_stub(union perf_event *event __used,
return 0;
}
+static int process_event_sample_stub(union perf_event *event __used,
+ struct perf_sample *sample __used,
+ struct perf_evsel *evsel __used,
+ struct perf_session *session __used)
+{
+ dump_printf(": unhandled!\n");
+ return 0;
+}
+
static int process_event_stub(union perf_event *event __used,
struct perf_sample *sample __used,
struct perf_session *session __used)
@@ -303,7 +312,7 @@ static int process_finished_round(union perf_event *event,
static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
{
if (handler->sample == NULL)
- handler->sample = process_event_stub;
+ handler->sample = process_event_sample_stub;
if (handler->mmap == NULL)
handler->mmap = process_event_stub;
if (handler->comm == NULL)
@@ -698,12 +707,19 @@ static int perf_session_deliver_event(struct perf_session *session,
struct perf_event_ops *ops,
u64 file_offset)
{
+ struct perf_evsel *evsel;
+
dump_event(session, event, file_offset, sample);
switch (event->header.type) {
case PERF_RECORD_SAMPLE:
dump_sample(session, event, sample);
- return ops->sample(event, sample, session);
+ evsel = perf_evlist__id2evsel(session->evlist, sample->id);
+ if (evsel == NULL) {
+ ++session->hists.stats.nr_unknown_id;
+ return -1;
+ }
+ return ops->sample(event, sample, evsel, session);
case PERF_RECORD_MMAP:
return ops->mmap(event, sample, session);
case PERF_RECORD_COMM:
@@ -845,6 +861,11 @@ static void perf_session__warn_about_errors(const struct perf_session *session,
session->hists.stats.nr_unknown_events);
}
+ if (session->hists.stats.nr_unknown_id != 0) {
+ ui__warning("%u samples with id not present in the header\n",
+ session->hists.stats.nr_unknown_id);
+ }
+
if (session->hists.stats.nr_invalid_chains != 0) {
ui__warning("Found invalid callchains!\n\n"
"%u out of %u events were discarded for this reason.\n\n"
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 0b3c9af..1ac481f 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -55,8 +55,11 @@ struct perf_session {
char filename[0];
};
+struct perf_evsel;
struct perf_event_ops;
+typedef int (*event_sample)(union perf_event *event, struct perf_sample *sample,
+ struct perf_evsel *evsel, struct perf_session *session);
typedef int (*event_op)(union perf_event *self, struct perf_sample *sample,
struct perf_session *session);
typedef int (*event_synth_op)(union perf_event *self,
@@ -65,8 +68,8 @@ typedef int (*event_op2)(union perf_event *self, struct perf_session *session,
struct perf_event_ops *ops);
struct perf_event_ops {
- event_op sample,
- mmap,
+ event_sample sample;
+ event_op mmap,
comm,
fork,
exit,
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
index 66f4b78..c9dcbec 100644
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -38,6 +38,7 @@ static int stop_script_unsupported(void)
static void process_event_unsupported(union perf_event *event __unused,
struct perf_sample *sample __unused,
+ struct perf_evsel *evsel __unused,
struct perf_session *session __unused,
struct thread *thread __unused)
{
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index b04da57..f674dda 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -280,6 +280,7 @@ struct scripting_ops {
int (*stop_script) (void);
void (*process_event) (union perf_event *event,
struct perf_sample *sample,
+ struct perf_evsel *evsel,
struct perf_session *session,
struct thread *thread);
int (*generate_script) (const char *outfile);
--
1.6.2.5
--
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