Merge "AudioFlinger: Accumulate long term thread latency statistics." (a10e9188) · Commits · e / os / android_frameworks_av

services/audioflinger/Threads.cpp

+23 −15

Original line number	Diff line number	Diff line
		@@ -842,6 +842,12 @@ void AudioFlinger::ThreadBase::dumpBase(int fd, const Vector<String16>& args __u
		mIoJitterMs.toString().c_str());
		}

		if (mLatencyMs.getN() > 0) {
		dprintf(fd, " Threadloop %s latency stats: %s\n",
		isOutput() ? "write" : "read",
		mLatencyMs.toString().c_str());
		}

		if (locked) {
		mLock.unlock();
		}
		@@ -3380,6 +3386,14 @@ bool AudioFlinger::PlaybackThread::threadLoop()
		}
		}
		}

		if (audio_has_proportional_frames(mFormat)) {
		const double latencyMs = mTimestamp.getOutputServerLatencyMs(mSampleRate);
		if (latencyMs != 0.) { // note 0. means timestamp is empty.
		mLatencyMs.add(latencyMs);
		}
		}

		} // if (mType ... ) { // no indentation
		#if 0
		// logFormat example
		@@ -5296,13 +5310,6 @@ void AudioFlinger::MixerThread::dumpInternals(int fd, const Vector<String16>& ar
		dprintf(fd, " Master balance: %f (%s)\n", mMasterBalance.load(),
		(hasFastMixer() ? std::to_string(mFastMixer->getMasterBalance())
		: mBalance.toString()).c_str());
		const double latencyMs = mTimestamp.getOutputServerLatencyMs(mSampleRate);
		if (latencyMs != 0.) {
		dprintf(fd, " NormalMixer latency ms: %.2lf\n", latencyMs);
		} else {
		dprintf(fd, " NormalMixer latency ms: unavail\n");
		}

		if (hasFastMixer()) {
		dprintf(fd, " FastMixer thread %p tid=%d", mFastMixer.get(), mFastMixer->getTid());

		@@ -7042,6 +7049,15 @@ reacquire_wakelock:
		mTimestampVerifier.error();
		}
		}

		// From the timestamp, input read latency is negative output write latency.
		const audio_input_flags_t flags = mInput != NULL ? mInput->flags : AUDIO_INPUT_FLAG_NONE;
		const double latencyMs = RecordTrack::checkServerLatencySupported(mFormat, flags)
		? - mTimestamp.getOutputServerLatencyMs(mSampleRate) : 0.;
		if (latencyMs != 0.) { // note 0. means timestamp is empty.
		mLatencyMs.add(latencyMs);
		}

		// Use this to track timestamp information
		// ALOGD("%s", mTimestamp.toString().c_str());

		@@ -7734,14 +7750,6 @@ void AudioFlinger::RecordThread::dumpInternals(int fd, const Vector<String16>& a
		(void)input->stream->dump(fd);
		}

		const double latencyMs = RecordTrack::checkServerLatencySupported(mFormat, flags)
		? - mTimestamp.getOutputServerLatencyMs(mSampleRate) : 0.;
		if (latencyMs != 0.) {
		dprintf(fd, " NormalRecord latency ms: %.2lf\n", latencyMs);
		} else {
		dprintf(fd, " NormalRecord latency ms: unavail\n");
		}

		dprintf(fd, " Fast capture thread: %s\n", hasFastCapture() ? "yes" : "no");
		dprintf(fd, " Fast track available: %s\n", mFastTrackAvail ? "yes" : "no");

services/audioflinger/Threads.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -520,6 +520,7 @@ protected:
		// This should be read under ThreadBase lock (if not on the threadLoop thread).
		audio_utils::Statistics<double> mIoJitterMs{0.995 /* alpha */};
		audio_utils::Statistics<double> mProcessTimeMs{0.995 /* alpha */};
		audio_utils::Statistics<double> mLatencyMs{0.995 /* alpha */};

		bool mIsMsdDevice = false;
		// A condition that must be evaluated by the thread loop has changed and