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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-12-02 14:10:21 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-12-04 23:05:19 -0200
commit640c03ce837fe8d4b56342aba376ea0da3960459 (patch)
treee954290ccacf032ab4d9052eac01710fda1b7fab /tools/perf/builtin-timechart.c
parentc980d1091810df13f21aabbce545fd98f545bbf7 (diff)
perf session: Parse sample earlier
At perf_session__process_event, so that we reduce the number of lines in eache tool sample processing routine that now receives a sample_data pointer already parsed. This will also be useful in the next patch, where we'll allow sample the identity fields in MMAP, FORK, EXIT, etc, when it will be possible to see (cpu, timestamp) just after before every event. Also validate callchains in perf_session__process_event, i.e. as early as possible, and keep a counter of the number of events discarded due to invalid callchains, warning the user about it if it happens. There is an assumption that was kept that all events have the same sample_type, that will be dealt with in the future, when this preexisting limitation will be removed. Tested-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ian Munsie <imunsie@au1.ibm.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> LKML-Reference: <1291318772-30880-4-git-send-email-acme@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-timechart.c')
-rw-r--r--tools/perf/builtin-timechart.c40
1 files changed, 20 insertions, 20 deletions
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 9bcc38f0b70..1f158dc0334 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -272,19 +272,22 @@ static int cpus_cstate_state[MAX_CPUS];
static u64 cpus_pstate_start_times[MAX_CPUS];
static u64 cpus_pstate_state[MAX_CPUS];
-static int process_comm_event(event_t *event, struct perf_session *session __used)
+static int process_comm_event(event_t *event, struct sample_data *sample __used,
+ struct perf_session *session __used)
{
pid_set_comm(event->comm.tid, event->comm.comm);
return 0;
}
-static int process_fork_event(event_t *event, struct perf_session *session __used)
+static int process_fork_event(event_t *event, struct sample_data *sample __used,
+ struct perf_session *session __used)
{
pid_fork(event->fork.pid, event->fork.ppid, event->fork.time);
return 0;
}
-static int process_exit_event(event_t *event, struct perf_session *session __used)
+static int process_exit_event(event_t *event, struct sample_data *sample __used,
+ struct perf_session *session __used)
{
pid_exit(event->fork.pid, event->fork.time);
return 0;
@@ -470,24 +473,21 @@ static void sched_switch(int cpu, u64 timestamp, struct trace_entry *te)
}
-static int process_sample_event(event_t *event, struct perf_session *session)
+static int process_sample_event(event_t *event __used,
+ struct sample_data *sample,
+ struct perf_session *session)
{
- struct sample_data data;
struct trace_entry *te;
- memset(&data, 0, sizeof(data));
-
- event__parse_sample(event, session->sample_type, &data);
-
if (session->sample_type & PERF_SAMPLE_TIME) {
- if (!first_time || first_time > data.time)
- first_time = data.time;
- if (last_time < data.time)
- last_time = data.time;
+ if (!first_time || first_time > sample->time)
+ first_time = sample->time;
+ if (last_time < sample->time)
+ last_time = sample->time;
}
- te = (void *)data.raw_data;
- if (session->sample_type & PERF_SAMPLE_RAW && data.raw_size > 0) {
+ te = (void *)sample->raw_data;
+ if (session->sample_type & PERF_SAMPLE_RAW && sample->raw_size > 0) {
char *event_str;
struct power_entry *pe;
@@ -499,19 +499,19 @@ static int process_sample_event(event_t *event, struct perf_session *session)
return 0;
if (strcmp(event_str, "power:power_start") == 0)
- c_state_start(pe->cpu_id, data.time, pe->value);
+ c_state_start(pe->cpu_id, sample->time, pe->value);
if (strcmp(event_str, "power:power_end") == 0)
- c_state_end(pe->cpu_id, data.time);
+ c_state_end(pe->cpu_id, sample->time);
if (strcmp(event_str, "power:power_frequency") == 0)
- p_state_change(pe->cpu_id, data.time, pe->value);
+ p_state_change(pe->cpu_id, sample->time, pe->value);
if (strcmp(event_str, "sched:sched_wakeup") == 0)
- sched_wakeup(data.cpu, data.time, data.pid, te);
+ sched_wakeup(sample->cpu, sample->time, sample->pid, te);
if (strcmp(event_str, "sched:sched_switch") == 0)
- sched_switch(data.cpu, data.time, te);
+ sched_switch(sample->cpu, sample->time, te);
}
return 0;
}