Change hwui jank detection to use deadline & gpu completion (2/2)
- Use GPU finish time as well as actual deadline to determine jank
rate.
- Use dynamic interval to adjust for 60/90hz switching
- Move frame metrics reporting into JankTracker to adjust the
deadline communicated to the app when in stuffing scenario.
- Adjust double-stuffing detection to be a bit more readable.
Test: GraphicsStatsValidationTest.java
Test: adb shell dumpsys gfxinfo
Test: FrameMetricsListenerTest
Test: Log output of FrameMetricsObserver
Bug: 169858044
Change-Id: Ia1cae9f0c5358d1cd3bf043289ea8b4d26154737
diff --git a/libs/gui/DisplayEventDispatcher.cpp b/libs/gui/DisplayEventDispatcher.cpp
index 9cd3f63..e1b1efc 100644
--- a/libs/gui/DisplayEventDispatcher.cpp
+++ b/libs/gui/DisplayEventDispatcher.cpp
@@ -152,6 +152,7 @@
*outCount = ev.vsync.count;
outVsyncEventData->id = ev.vsync.vsyncId;
outVsyncEventData->deadlineTimestamp = ev.vsync.deadlineTimestamp;
+ outVsyncEventData->frameInterval = ev.vsync.frameInterval;
break;
case DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG:
dispatchHotplug(ev.header.timestamp, ev.header.displayId, ev.hotplug.connected);
diff --git a/libs/gui/include/gui/DisplayEventDispatcher.h b/libs/gui/include/gui/DisplayEventDispatcher.h
index d74c2ba..4ade240 100644
--- a/libs/gui/include/gui/DisplayEventDispatcher.h
+++ b/libs/gui/include/gui/DisplayEventDispatcher.h
@@ -30,6 +30,9 @@
// The deadline in CLOCK_MONOTONIC that the app needs to complete its
// frame by (both on the CPU and the GPU)
int64_t deadlineTimestamp = std::numeric_limits<int64_t>::max();
+
+ // The current frame interval in ns when this frame was scheduled.
+ int64_t frameInterval = 0;
};
class DisplayEventDispatcher : public LooperCallback {
diff --git a/libs/gui/include/gui/DisplayEventReceiver.h b/libs/gui/include/gui/DisplayEventReceiver.h
index 7179a20..0dffbde 100644
--- a/libs/gui/include/gui/DisplayEventReceiver.h
+++ b/libs/gui/include/gui/DisplayEventReceiver.h
@@ -75,6 +75,7 @@
uint32_t count;
nsecs_t expectedVSyncTimestamp __attribute__((aligned(8)));
nsecs_t deadlineTimestamp __attribute__((aligned(8)));
+ nsecs_t frameInterval __attribute__((aligned(8)));
int64_t vsyncId;
};
diff --git a/libs/gui/tests/DisplayEventStructLayout_test.cpp b/libs/gui/tests/DisplayEventStructLayout_test.cpp
index 7dbba31..bcd39db 100644
--- a/libs/gui/tests/DisplayEventStructLayout_test.cpp
+++ b/libs/gui/tests/DisplayEventStructLayout_test.cpp
@@ -34,7 +34,8 @@
CHECK_OFFSET(DisplayEventReceiver::Event::VSync, count, 0);
CHECK_OFFSET(DisplayEventReceiver::Event::VSync, expectedVSyncTimestamp, 8);
CHECK_OFFSET(DisplayEventReceiver::Event::VSync, deadlineTimestamp, 16);
- CHECK_OFFSET(DisplayEventReceiver::Event::VSync, vsyncId, 24);
+ CHECK_OFFSET(DisplayEventReceiver::Event::VSync, frameInterval, 24);
+ CHECK_OFFSET(DisplayEventReceiver::Event::VSync, vsyncId, 32);
CHECK_OFFSET(DisplayEventReceiver::Event::Hotplug, connected, 0);
diff --git a/libs/nativedisplay/AChoreographer.cpp b/libs/nativedisplay/AChoreographer.cpp
index dc2dd29..0edb213 100644
--- a/libs/nativedisplay/AChoreographer.cpp
+++ b/libs/nativedisplay/AChoreographer.cpp
@@ -130,7 +130,7 @@
virtual ~Choreographer() override EXCLUDES(gChoreographers.lock);
int64_t getVsyncId() const;
int64_t getFrameDeadline() const;
-
+ int64_t getFrameInterval() const;
private:
Choreographer(const Choreographer&) = delete;
@@ -418,6 +418,10 @@
return mLastVsyncEventData.deadlineTimestamp;
}
+int64_t Choreographer::getFrameInterval() const {
+ return mLastVsyncEventData.frameInterval;
+}
+
} // namespace android
using namespace android;
@@ -501,6 +505,10 @@
return AChoreographer_to_Choreographer(choreographer)->getFrameDeadline();
}
+int64_t AChoreographer_getFrameInterval(const AChoreographer* choreographer) {
+ return AChoreographer_to_Choreographer(choreographer)->getFrameInterval();
+}
+
} // namespace android
/* Glue for the NDK interface */
diff --git a/libs/nativedisplay/include-private/private/android/choreographer.h b/libs/nativedisplay/include-private/private/android/choreographer.h
index 0f4fd45..7d25ce8 100644
--- a/libs/nativedisplay/include-private/private/android/choreographer.h
+++ b/libs/nativedisplay/include-private/private/android/choreographer.h
@@ -42,6 +42,11 @@
// value.
int64_t AChoreographer_getFrameDeadline(const AChoreographer* choreographer);
+// Returns the current interval in ns between frames.
+// Client are expected to call this function from their frame callback function.
+// Calling this function from anywhere else will return an undefined value.
+int64_t AChoreographer_getFrameInterval(const AChoreographer* choreographer);
+
// Trampoline functions allowing libandroid.so to define the NDK symbols without including
// the entirety of libnativedisplay as a whole static lib. As libnativedisplay
// maintains global state, libnativedisplay can never be directly statically
diff --git a/libs/nativedisplay/libnativedisplay.map.txt b/libs/nativedisplay/libnativedisplay.map.txt
index fda6a20..9ed4915 100644
--- a/libs/nativedisplay/libnativedisplay.map.txt
+++ b/libs/nativedisplay/libnativedisplay.map.txt
@@ -31,6 +31,7 @@
android::AChoreographer_signalRefreshRateCallbacks*;
android::AChoreographer_getVsyncId*;
android::AChoreographer_getFrameDeadline*;
+ android::AChoreographer_getFrameInterval*;
android::ADisplay_acquirePhysicalDisplays*;
android::ADisplay_release*;
android::ADisplay_getMaxSupportedFps*;