Merge performance samples
Update the Ethos-U Monitor to merge performance samples where the
qread or status register have not changed.
Change-Id: I8b4ea728e004bd2ff05ad1c90326a864dc592f4d
diff --git a/lib/ethosu_monitor/src/ethosu_monitor.cpp b/lib/ethosu_monitor/src/ethosu_monitor.cpp
index d13e6c2..e4e100c 100644
--- a/lib/ethosu_monitor/src/ethosu_monitor.cpp
+++ b/lib/ethosu_monitor/src/ethosu_monitor.cpp
@@ -21,18 +21,27 @@
#include <inttypes.h>
#include <stdio.h>
-EthosUMonitor::EthosUMonitor(Backend __backend) : backend(__backend) {}
+EthosUMonitor::EthosUMonitor(Backend __backend, bool _merge) : backend(__backend), merge(_merge) {}
void EthosUMonitor::monitorSample(ethosu_driver *drv) {
switch (backend) {
case EVENT_RECORDER: {
- EthosuEventRecord record = {ETHOSU_PMU_Get_CCNTR(drv),
- ETHOSU_PMU_Get_QREAD(drv),
- ETHOSU_PMU_Get_STATUS(drv),
- {{ethosuEventIds[0], ETHOSU_PMU_Get_EVCNTR(drv, 0)},
- {ethosuEventIds[1], ETHOSU_PMU_Get_EVCNTR(drv, 1)},
- {ethosuEventIds[2], ETHOSU_PMU_Get_EVCNTR(drv, 2)},
- {ethosuEventIds[3], ETHOSU_PMU_Get_EVCNTR(drv, 3)}}};
+ const EthosuEventRecord record = {ETHOSU_PMU_Get_CCNTR(drv),
+ ETHOSU_PMU_Get_QREAD(drv),
+ ETHOSU_PMU_Get_STATUS(drv),
+ {{ethosuEventIds[0], ETHOSU_PMU_Get_EVCNTR(drv, 0)},
+ {ethosuEventIds[1], ETHOSU_PMU_Get_EVCNTR(drv, 1)},
+ {ethosuEventIds[2], ETHOSU_PMU_Get_EVCNTR(drv, 2)},
+ {ethosuEventIds[3], ETHOSU_PMU_Get_EVCNTR(drv, 3)}}};
+
+ // Merge records if qread or status has not changed
+ if (merge && prevRecord.qread == record.qread && prevRecord.status == record.status) {
+ mergeCount++;
+ break;
+ }
+
+ prevRecord.qread = record.qread;
+ prevRecord.status = record.status;
EventRecordData(EventID(EventLevelDetail, EthosuEventComponentNo, 0), &record, sizeof(record));
break;
@@ -48,3 +57,7 @@
void EthosUMonitor::release(ethosu_driver *drv) {
ETHOSU_PMU_Disable(drv);
}
+
+size_t EthosUMonitor::getMergeCount() const {
+ return mergeCount;
+}