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91 lines
3.1 KiB
91 lines
3.1 KiB
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _UI_INPUT_INPUTDISPATCHER_LATENCYAGGREGATOR_H
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#define _UI_INPUT_INPUTDISPATCHER_LATENCYAGGREGATOR_H
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#include <kll.h>
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#include <statslog.h>
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#include <utils/Timers.h>
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#include "InputEventTimeline.h"
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namespace android::inputdispatcher {
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enum SketchIndex : size_t {
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EVENT_TO_READ = 0,
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READ_TO_DELIVER = 1,
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DELIVER_TO_CONSUME = 2,
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CONSUME_TO_FINISH = 3,
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CONSUME_TO_GPU_COMPLETE = 4,
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GPU_COMPLETE_TO_PRESENT = 5,
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END_TO_END = 6, // EVENT_TO_PRESENT
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SIZE = 7, // Must be last
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};
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// Let's create a full timeline here:
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// eventTime
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// readTime
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// <---- after this point, the data becomes per-connection
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// deliveryTime // time at which the event was sent to the receiver
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// consumeTime // time at which the receiver read the event
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// finishTime // time at which the finish event was received
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// GraphicsTimeline::GPU_COMPLETED_TIME
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// GraphicsTimeline::PRESENT_TIME
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/**
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* Keep sketches of the provided events and report slow events
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*/
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class LatencyAggregator final : public InputEventTimelineProcessor {
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public:
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LatencyAggregator();
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/**
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* Record a complete event timeline
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*/
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void processTimeline(const InputEventTimeline& timeline) override;
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std::string dump(const char* prefix);
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~LatencyAggregator();
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private:
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static AStatsManager_PullAtomCallbackReturn pullAtomCallback(int32_t atom_tag,
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AStatsEventList* data,
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void* cookie);
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AStatsManager_PullAtomCallbackReturn pullData(AStatsEventList* data);
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// ---------- Slow event handling ----------
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void processSlowEvent(const InputEventTimeline& timeline);
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nsecs_t mLastSlowEventTime = 0;
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// How many slow events have been skipped due to rate limiting
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size_t mNumSkippedSlowEvents = 0;
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// How many events have been received since the last time we reported a slow event
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size_t mNumEventsSinceLastSlowEventReport = 0;
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// ---------- Statistics handling ----------
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void processStatistics(const InputEventTimeline& timeline);
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// Sketches
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std::array<std::unique_ptr<dist_proc::aggregation::KllQuantile>, SketchIndex::SIZE>
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mDownSketches;
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std::array<std::unique_ptr<dist_proc::aggregation::KllQuantile>, SketchIndex::SIZE>
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mMoveSketches;
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// How many events have been processed so far
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size_t mNumSketchEventsProcessed = 0;
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};
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} // namespace android::inputdispatcher
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#endif // _UI_INPUT_INPUTDISPATCHER_LATENCYAGGREGATOR_H
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