diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-sched.c | 48 |
1 files changed, 22 insertions, 26 deletions
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index 61a80e8c9d0..43570270278 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -884,6 +884,10 @@ struct task_atoms { struct list_head snapshot_list; struct thread *thread; struct rb_node node; + u64 max_lat; + u64 total_lat; + u64 nb_atoms; + u64 total_runtime; }; static struct rb_root lat_snapshot_root; @@ -985,6 +989,7 @@ static void lat_sched_in(struct task_atoms *atoms, u64 timestamp) { struct work_atom *snapshot; + u64 delta; if (list_empty(&atoms->snapshot_list)) return; @@ -1002,6 +1007,13 @@ lat_sched_in(struct task_atoms *atoms, u64 timestamp) snapshot->state = THREAD_SCHED_IN; snapshot->sched_in_time = timestamp; + + delta = snapshot->sched_in_time - snapshot->wake_up_time; + atoms->total_lat += delta; + if (delta > atoms->max_lat) + atoms->max_lat = delta; + atoms->nb_atoms++; + atoms->total_runtime += snapshot->runtime; } static void @@ -1099,43 +1111,27 @@ static u64 all_count; static void output_lat_thread(struct task_atoms *atom_list) { - struct work_atom *atom; - int count = 0; int i; int ret; - u64 max = 0, avg; - u64 total = 0, delta; - u64 total_runtime = 0; - - list_for_each_entry(atom, &atom_list->snapshot_list, list) { - total_runtime += atom->runtime; - - if (atom->state != THREAD_SCHED_IN) - continue; - - count++; + u64 avg; - delta = atom->sched_in_time - atom->wake_up_time; - if (delta > max) - max = delta; - total += delta; - } - - all_runtime += total_runtime; - all_count += count; - - if (!count) + if (!atom_list->nb_atoms) return; + all_runtime += atom_list->total_runtime; + all_count += atom_list->nb_atoms; + ret = printf(" %s ", atom_list->thread->comm); for (i = 0; i < 19 - ret; i++) printf(" "); - avg = total / count; + avg = atom_list->total_lat / atom_list->nb_atoms; - printf("|%9.3f ms |%9d | avg:%9.3f ms | max:%9.3f ms |\n", - (double)total_runtime/1e9, count, (double)avg/1e9, (double)max/1e9); + printf("|%9.3f ms |%9llu | avg:%9.3f ms | max:%9.3f ms |\n", + (double)atom_list->total_runtime / 1e9, + atom_list->nb_atoms, (double)avg / 1e9, + (double)atom_list->max_lat / 1e9); } static void __cmd_lat(void) |