diff options
Diffstat (limited to 'tools/perf/builtin-kwork.c')
| -rw-r--r-- | tools/perf/builtin-kwork.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/tools/perf/builtin-kwork.c b/tools/perf/builtin-kwork.c index 42ea59a957ae..f620911a26a2 100644 --- a/tools/perf/builtin-kwork.c +++ b/tools/perf/builtin-kwork.c @@ -392,9 +392,10 @@ static int work_push_atom(struct perf_kwork *kwork, struct evsel *evsel, struct perf_sample *sample, struct machine *machine, - struct kwork_work **ret_work) + struct kwork_work **ret_work, + bool overwrite) { - struct kwork_atom *atom, *dst_atom; + struct kwork_atom *atom, *dst_atom, *last_atom; struct kwork_work *work, key; BUG_ON(class->work_init == NULL); @@ -427,6 +428,17 @@ static int work_push_atom(struct perf_kwork *kwork, if (ret_work != NULL) *ret_work = work; + if (overwrite) { + last_atom = list_last_entry_or_null(&work->atom_list[src_type], + struct kwork_atom, list); + if (last_atom) { + atom_del(last_atom); + + kwork->nr_skipped_events[src_type]++; + kwork->nr_skipped_events[KWORK_TRACE_MAX]++; + } + } + list_add_tail(&atom->list, &work->atom_list[src_type]); return 0; @@ -502,7 +514,7 @@ static int report_entry_event(struct perf_kwork *kwork, { return work_push_atom(kwork, class, KWORK_TRACE_ENTRY, KWORK_TRACE_MAX, evsel, sample, - machine, NULL); + machine, NULL, true); } static int report_exit_event(struct perf_kwork *kwork, @@ -557,7 +569,7 @@ static int latency_raise_event(struct perf_kwork *kwork, { return work_push_atom(kwork, class, KWORK_TRACE_RAISE, KWORK_TRACE_MAX, evsel, sample, - machine, NULL); + machine, NULL, true); } static int latency_entry_event(struct perf_kwork *kwork, @@ -716,7 +728,7 @@ static int timehist_raise_event(struct perf_kwork *kwork, { return work_push_atom(kwork, class, KWORK_TRACE_RAISE, KWORK_TRACE_MAX, evsel, sample, - machine, NULL); + machine, NULL, true); } static int timehist_entry_event(struct perf_kwork *kwork, @@ -730,7 +742,7 @@ static int timehist_entry_event(struct perf_kwork *kwork, ret = work_push_atom(kwork, class, KWORK_TRACE_ENTRY, KWORK_TRACE_RAISE, evsel, sample, - machine, &work); + machine, &work, true); if (ret) return ret; |