Re: [tip:perf/core] perf script: Print comm, fork and exit events also
On Sat, Nov 30, 2013 at 04:53:07AM -0800, tip-bot for Namhyung Kim wrote: > Commit-ID: ad7ebb9a48f59bad2714b64725653a73d78b686e > Gitweb: http://git.kernel.org/tip/ad7ebb9a48f59bad2714b64725653a73d78b686e > Author: Namhyung Kim > AuthorDate: Tue, 26 Nov 2013 17:51:12 +0900 > Committer: Arnaldo Carvalho de Melo > CommitDate: Wed, 27 Nov 2013 14:58:38 -0300 > > perf script: Print comm, fork and exit events also > > If --show-task-events option is given, also print internal COMM, FORK > and EXIT events. It would be helpful for debugging. > > $ perf script --show-task-events > ... > swapper 0 [009] 3350640.335261: sched:sched_switch: > prev_comm=swapper/9 >sleep 9486 [009] 3350640.335509: PERF_RECORD_COMM: sleep:9486 >sleep 9486 [009] 3350640.335806: sched:sched_stat_runtime: > comm=sleep pid=9486 > firefox 2635 [003] 3350641.275896: > PERF_RECORD_FORK(2635:9487):(2635:2635) > firefox 2635 [003] 3350641.275896: sched:sched_process_fork: > comm=firefox pid=2635 >sleep 9486 [009] 3350641.336009: > PERF_RECORD_EXIT(9486:9486):(9486:9486) > > Signed-off-by: Namhyung Kim > Suggested-by: Frederic Weisbecker Thanks a lot for doing this Namhyung! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [tip:perf/core] perf script: Print comm, fork and exit events also
On Sat, Nov 30, 2013 at 04:53:07AM -0800, tip-bot for Namhyung Kim wrote: Commit-ID: ad7ebb9a48f59bad2714b64725653a73d78b686e Gitweb: http://git.kernel.org/tip/ad7ebb9a48f59bad2714b64725653a73d78b686e Author: Namhyung Kim namhy...@kernel.org AuthorDate: Tue, 26 Nov 2013 17:51:12 +0900 Committer: Arnaldo Carvalho de Melo a...@redhat.com CommitDate: Wed, 27 Nov 2013 14:58:38 -0300 perf script: Print comm, fork and exit events also If --show-task-events option is given, also print internal COMM, FORK and EXIT events. It would be helpful for debugging. $ perf script --show-task-events ... swapper 0 [009] 3350640.335261: sched:sched_switch: prev_comm=swapper/9 sleep 9486 [009] 3350640.335509: PERF_RECORD_COMM: sleep:9486 sleep 9486 [009] 3350640.335806: sched:sched_stat_runtime: comm=sleep pid=9486 firefox 2635 [003] 3350641.275896: PERF_RECORD_FORK(2635:9487):(2635:2635) firefox 2635 [003] 3350641.275896: sched:sched_process_fork: comm=firefox pid=2635 sleep 9486 [009] 3350641.336009: PERF_RECORD_EXIT(9486:9486):(9486:9486) Signed-off-by: Namhyung Kim namhy...@kernel.org Suggested-by: Frederic Weisbecker fweis...@gmail.com Thanks a lot for doing this Namhyung! -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[tip:perf/core] perf script: Print comm, fork and exit events also
Commit-ID: ad7ebb9a48f59bad2714b64725653a73d78b686e
Gitweb: http://git.kernel.org/tip/ad7ebb9a48f59bad2714b64725653a73d78b686e
Author: Namhyung Kim
AuthorDate: Tue, 26 Nov 2013 17:51:12 +0900
Committer: Arnaldo Carvalho de Melo
CommitDate: Wed, 27 Nov 2013 14:58:38 -0300
perf script: Print comm, fork and exit events also
If --show-task-events option is given, also print internal COMM, FORK
and EXIT events. It would be helpful for debugging.
$ perf script --show-task-events
...
swapper 0 [009] 3350640.335261: sched:sched_switch:
prev_comm=swapper/9
sleep 9486 [009] 3350640.335509: PERF_RECORD_COMM: sleep:9486
sleep 9486 [009] 3350640.335806: sched:sched_stat_runtime:
comm=sleep pid=9486
firefox 2635 [003] 3350641.275896:
PERF_RECORD_FORK(2635:9487):(2635:2635)
firefox 2635 [003] 3350641.275896: sched:sched_process_fork:
comm=firefox pid=2635
sleep 9486 [009] 3350641.336009:
PERF_RECORD_EXIT(9486:9486):(9486:9486)
Signed-off-by: Namhyung Kim
Suggested-by: Frederic Weisbecker
Reviewed-by: David Ahern
Cc: Ingo Molnar
Cc: Namhyung Kim
Cc: Paul Mackerras
Cc: Peter Zijlstra
Link:
http://lkml.kernel.org/r/1385455873-25865-1-git-send-email-namhy...@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo
---
tools/perf/Documentation/perf-script.txt | 3 +
tools/perf/builtin-script.c | 105 +++
2 files changed, 108 insertions(+)
diff --git a/tools/perf/Documentation/perf-script.txt
b/tools/perf/Documentation/perf-script.txt
index e9cbfcd..67af9b7 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -203,6 +203,9 @@ OPTIONS
--show-kernel-path::
Try to resolve the path of [kernel.kallsyms]
+--show-task-events
+ Display task related events (e.g. FORK, COMM, EXIT).
+
SEE ALSO
linkperf:perf-record[1], linkperf:perf-script-perl[1],
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 9f3ba44..e2b9aff 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -572,6 +572,7 @@ static int process_sample_event(struct perf_tool *tool
__maybe_unused,
struct perf_script {
struct perf_tooltool;
struct perf_session *session;
+ boolshow_task_events;
};
static int process_attr(struct perf_tool *tool, union perf_event *event,
@@ -602,6 +603,101 @@ static int process_attr(struct perf_tool *tool, union
perf_event *event,
return perf_evsel__check_attr(evsel, scr->session);
}
+static int process_comm_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ struct thread *thread;
+ struct perf_script *script = container_of(tool, struct perf_script,
tool);
+ struct perf_session *session = script->session;
+ struct perf_evsel *evsel = perf_evlist__first(session->evlist);
+ int ret = -1;
+
+ thread = machine__findnew_thread(machine, event->comm.pid,
event->comm.tid);
+ if (thread == NULL) {
+ pr_debug("problem processing COMM event, skipping it.\n");
+ return -1;
+ }
+
+ if (perf_event__process_comm(tool, event, sample, machine) < 0)
+ goto out;
+
+ if (!evsel->attr.sample_id_all) {
+ sample->cpu = 0;
+ sample->time = 0;
+ sample->tid = event->comm.tid;
+ sample->pid = event->comm.pid;
+ }
+ print_sample_start(sample, thread, evsel);
+ perf_event__fprintf(event, stdout);
+ ret = 0;
+
+out:
+ return ret;
+}
+
+static int process_fork_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ struct thread *thread;
+ struct perf_script *script = container_of(tool, struct perf_script,
tool);
+ struct perf_session *session = script->session;
+ struct perf_evsel *evsel = perf_evlist__first(session->evlist);
+
+ if (perf_event__process_fork(tool, event, sample, machine) < 0)
+ return -1;
+
+ thread = machine__findnew_thread(machine, event->fork.pid,
event->fork.tid);
+ if (thread == NULL) {
+ pr_debug("problem processing FORK event, skipping it.\n");
+ return -1;
+ }
+
+ if (!evsel->attr.sample_id_all) {
+ sample->cpu = 0;
+ sample->time = event->fork.time;
+ sample->tid = event->fork.tid;
+ sample->pid = event->fork.pid;
+ }
+ print_sample_start(sample, thread, evsel);
+ perf_event__fprintf(event, stdout);
+
+ return 0;
+}
+static int process_exit_event(struct
[tip:perf/core] perf script: Print comm, fork and exit events also
Commit-ID: ad7ebb9a48f59bad2714b64725653a73d78b686e
Gitweb: http://git.kernel.org/tip/ad7ebb9a48f59bad2714b64725653a73d78b686e
Author: Namhyung Kim namhy...@kernel.org
AuthorDate: Tue, 26 Nov 2013 17:51:12 +0900
Committer: Arnaldo Carvalho de Melo a...@redhat.com
CommitDate: Wed, 27 Nov 2013 14:58:38 -0300
perf script: Print comm, fork and exit events also
If --show-task-events option is given, also print internal COMM, FORK
and EXIT events. It would be helpful for debugging.
$ perf script --show-task-events
...
swapper 0 [009] 3350640.335261: sched:sched_switch:
prev_comm=swapper/9
sleep 9486 [009] 3350640.335509: PERF_RECORD_COMM: sleep:9486
sleep 9486 [009] 3350640.335806: sched:sched_stat_runtime:
comm=sleep pid=9486
firefox 2635 [003] 3350641.275896:
PERF_RECORD_FORK(2635:9487):(2635:2635)
firefox 2635 [003] 3350641.275896: sched:sched_process_fork:
comm=firefox pid=2635
sleep 9486 [009] 3350641.336009:
PERF_RECORD_EXIT(9486:9486):(9486:9486)
Signed-off-by: Namhyung Kim namhy...@kernel.org
Suggested-by: Frederic Weisbecker fweis...@gmail.com
Reviewed-by: David Ahern dsah...@gmail.com
Cc: Ingo Molnar mi...@kernel.org
Cc: Namhyung Kim namhyung@lge.com
Cc: Paul Mackerras pau...@samba.org
Cc: Peter Zijlstra a.p.zijls...@chello.nl
Link:
http://lkml.kernel.org/r/1385455873-25865-1-git-send-email-namhy...@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo a...@redhat.com
---
tools/perf/Documentation/perf-script.txt | 3 +
tools/perf/builtin-script.c | 105 +++
2 files changed, 108 insertions(+)
diff --git a/tools/perf/Documentation/perf-script.txt
b/tools/perf/Documentation/perf-script.txt
index e9cbfcd..67af9b7 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -203,6 +203,9 @@ OPTIONS
--show-kernel-path::
Try to resolve the path of [kernel.kallsyms]
+--show-task-events
+ Display task related events (e.g. FORK, COMM, EXIT).
+
SEE ALSO
linkperf:perf-record[1], linkperf:perf-script-perl[1],
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 9f3ba44..e2b9aff 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -572,6 +572,7 @@ static int process_sample_event(struct perf_tool *tool
__maybe_unused,
struct perf_script {
struct perf_tooltool;
struct perf_session *session;
+ boolshow_task_events;
};
static int process_attr(struct perf_tool *tool, union perf_event *event,
@@ -602,6 +603,101 @@ static int process_attr(struct perf_tool *tool, union
perf_event *event,
return perf_evsel__check_attr(evsel, scr-session);
}
+static int process_comm_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ struct thread *thread;
+ struct perf_script *script = container_of(tool, struct perf_script,
tool);
+ struct perf_session *session = script-session;
+ struct perf_evsel *evsel = perf_evlist__first(session-evlist);
+ int ret = -1;
+
+ thread = machine__findnew_thread(machine, event-comm.pid,
event-comm.tid);
+ if (thread == NULL) {
+ pr_debug(problem processing COMM event, skipping it.\n);
+ return -1;
+ }
+
+ if (perf_event__process_comm(tool, event, sample, machine) 0)
+ goto out;
+
+ if (!evsel-attr.sample_id_all) {
+ sample-cpu = 0;
+ sample-time = 0;
+ sample-tid = event-comm.tid;
+ sample-pid = event-comm.pid;
+ }
+ print_sample_start(sample, thread, evsel);
+ perf_event__fprintf(event, stdout);
+ ret = 0;
+
+out:
+ return ret;
+}
+
+static int process_fork_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ struct thread *thread;
+ struct perf_script *script = container_of(tool, struct perf_script,
tool);
+ struct perf_session *session = script-session;
+ struct perf_evsel *evsel = perf_evlist__first(session-evlist);
+
+ if (perf_event__process_fork(tool, event, sample, machine) 0)
+ return -1;
+
+ thread = machine__findnew_thread(machine, event-fork.pid,
event-fork.tid);
+ if (thread == NULL) {
+ pr_debug(problem processing FORK event, skipping it.\n);
+ return -1;
+ }
+
+ if (!evsel-attr.sample_id_all) {
+ sample-cpu = 0;
+ sample-time = event-fork.time;
+ sample-tid = event-fork.tid;
+ sample-pid = event-fork.pid;
+ }
+
