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perf top: Register idle thread

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The perf top didn't add the idle/swapper thread to the machine's thread
list and its comm was displayed as ':0'.  Fix it.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1443577526-3240-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2015-09-30 10:45:26 +09:00 committed by Arnaldo Carvalho de Melo
parent 4b37af5957
commit c53d138d41
3 changed files with 6 additions and 1 deletions
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3
tools/perf/builtin-top.c
View File

@ -964,6 +964,9 @@ static int __cmd_top(struct perf_top *top)
if (ret)
goto out_delete;
if (perf_session__register_idle_thread(top->session) == NULL)
goto out_delete;
machine__synthesize_threads(&top->session->machines.host, &opts->target,
top->evlist->threads, false, opts->proc_map_timeout);

2
tools/perf/util/session.c
View File

@ -1311,7 +1311,7 @@ struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
return machine__findnew_thread(&session->machines.host, -1, pid);
}
static struct thread *perf_session__register_idle_thread(struct perf_session *session)
struct thread *perf_session__register_idle_thread(struct perf_session *session)
{
struct thread *thread;

2
tools/perf/util/session.h
View File

@ -89,6 +89,8 @@ struct machine *perf_session__findnew_machine(struct perf_session *session, pid_
}
struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
struct thread *perf_session__register_idle_thread(struct perf_session *session);
size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);