Record workqueue events workqueue:workqueue_activate_work,
workqueue:workqueue_execute_start & workqueue:workqueue_execute_end
Record all events:
# perf kwork record -o perf_kwork.date -- sleep 1
[ perf record: Woken up 0 times to write data ]
[ perf record: Captured and wrote 0.839 MB perf_kwork.date ]
# perf evlist -i perf_kwork.date
irq:irq_handler_entry
irq:irq_handler_exit
irq:softirq_raise
irq:softirq_entry
irq:softirq_exit
workqueue:workqueue_activate_work
workqueue:workqueue_execute_start
workqueue:workqueue_execute_end
dummy:HG
Record workqueue events:
# perf kwork -k workqueue record -o perf_kwork.date -- sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.080 MB perf_kwork.date ]
# perf evlist -i perf_kwork.date
workqueue:workqueue_activate_work
workqueue:workqueue_execute_start
workqueue:workqueue_execute_end
dummy:HG
Signed-off-by: Yang Jihong <[email protected]>
---
tools/perf/builtin-kwork.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/tools/perf/builtin-kwork.c b/tools/perf/builtin-kwork.c
index 0da554e04f16..cda6fcbc6e41 100644
--- a/tools/perf/builtin-kwork.c
+++ b/tools/perf/builtin-kwork.c
@@ -27,6 +27,7 @@
enum kwork_class_type {
KWORK_CLASS_IRQ,
KWORK_CLASS_SOFTIRQ,
+ KWORK_CLASS_WORKQUEUE,
KWORK_CLASS_MAX,
};
@@ -93,9 +94,22 @@ static struct kwork_class kwork_softirq = {
.tp_handlers = softirq_tp_handlers,
};
+const struct evsel_str_handler workqueue_tp_handlers[] = {
+ { "workqueue:workqueue_activate_work", NULL, },
+ { "workqueue:workqueue_execute_start", NULL, },
+ { "workqueue:workqueue_execute_end", NULL, },
+};
+
+static struct kwork_class kwork_workqueue = {
+ .name = "workqueue",
+ .nr_tracepoints = 3,
+ .tp_handlers = workqueue_tp_handlers,
+};
+
static struct kwork_class *kwork_class_supported_list[KWORK_CLASS_MAX] = {
[KWORK_CLASS_IRQ] = &kwork_irq,
[KWORK_CLASS_SOFTIRQ] = &kwork_softirq,
+ [KWORK_CLASS_WORKQUEUE] = &kwork_workqueue,
};
static void setup_event_list(struct perf_kwork *kwork,
--
2.30.GIT