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Diffstat (limited to 'tools/perf/builtin-sched.c')
-rw-r--r--tools/perf/builtin-sched.c44
1 files changed, 39 insertions, 5 deletions
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index e1df7055ab8..25b91e78433 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1034,6 +1034,36 @@ add_sched_in_event(struct work_atoms *atoms, u64 timestamp)
atoms->nb_atoms++;
}
+static struct thread *
+threads__findnew_from_ctx(u32 pid, struct trace_switch_event *switch_event)
+{
+ struct thread *th;
+
+ th = threads__findnew_nocomm(pid, &threads, &last_match);
+ if (th->comm)
+ return th;
+
+ if (pid == switch_event->prev_pid)
+ thread__set_comm(th, switch_event->prev_comm);
+ else
+ thread__set_comm(th, switch_event->next_comm);
+ return th;
+}
+
+static struct thread *
+threads__findnew_from_wakeup(struct trace_wakeup_event *wakeup_event)
+{
+ struct thread *th;
+
+ th = threads__findnew_nocomm(wakeup_event->pid, &threads, &last_match);
+ if (th->comm)
+ return th;
+
+ thread__set_comm(th, wakeup_event->comm);
+
+ return th;
+}
+
static void
latency_switch_event(struct trace_switch_event *switch_event,
struct event *event __used,
@@ -1059,8 +1089,10 @@ latency_switch_event(struct trace_switch_event *switch_event,
die("hm, delta: %Ld < 0 ?\n", delta);
- sched_out = threads__findnew(switch_event->prev_pid, &threads, &last_match);
- sched_in = threads__findnew(switch_event->next_pid, &threads, &last_match);
+ sched_out = threads__findnew_from_ctx(switch_event->prev_pid,
+ switch_event);
+ sched_in = threads__findnew_from_ctx(switch_event->next_pid,
+ switch_event);
out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid);
if (!out_events) {
@@ -1126,7 +1158,7 @@ latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
if (!wakeup_event->success)
return;
- wakee = threads__findnew(wakeup_event->pid, &threads, &last_match);
+ wakee = threads__findnew_from_wakeup(wakeup_event);
atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid);
if (!atoms) {
thread_atoms_insert(wakee);
@@ -1386,8 +1418,10 @@ map_switch_event(struct trace_switch_event *switch_event,
die("hm, delta: %Ld < 0 ?\n", delta);
- sched_out = threads__findnew(switch_event->prev_pid, &threads, &last_match);
- sched_in = threads__findnew(switch_event->next_pid, &threads, &last_match);
+ sched_out = threads__findnew_from_ctx(switch_event->prev_pid,
+ switch_event);
+ sched_in = threads__findnew_from_ctx(switch_event->next_pid,
+ switch_event);
curr_thread[this_cpu] = sched_in;