JankTracker.h revision edc524c90506d80e0fc5fb67e8de7b8f3ef53439
1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16#ifndef JANKTRACKER_H_ 17#define JANKTRACKER_H_ 18 19#include "FrameInfo.h" 20#include "renderthread/TimeLord.h" 21#include "utils/RingBuffer.h" 22 23#include <cutils/compiler.h> 24 25#include <array> 26#include <memory> 27 28namespace android { 29namespace uirenderer { 30 31enum JankType { 32 kMissedVsync = 0, 33 kHighInputLatency, 34 kSlowUI, 35 kSlowSync, 36 kSlowRT, 37 38 // must be last 39 NUM_BUCKETS, 40}; 41 42// Try to keep as small as possible, should match ASHMEM_SIZE in 43// GraphicsStatsService.java 44struct ProfileData { 45 std::array<uint32_t, NUM_BUCKETS> jankTypeCounts; 46 // See comments on kBucket* constants for what this holds 47 std::array<uint32_t, 57> frameCounts; 48 49 uint32_t totalFrameCount; 50 uint32_t jankFrameCount; 51}; 52 53// TODO: Replace DrawProfiler with this 54class JankTracker { 55public: 56 JankTracker(nsecs_t frameIntervalNanos); 57 ~JankTracker(); 58 59 void addFrame(const FrameInfo& frame); 60 61 void dump(int fd) { dumpData(mData, fd); } 62 void reset(); 63 64 void switchStorageToAshmem(int ashmemfd); 65 66 uint32_t findPercentile(int p) { return findPercentile(mData, p); } 67 68 ANDROID_API static void dumpBuffer(const void* buffer, size_t bufsize, int fd); 69 70private: 71 void freeData(); 72 void setFrameInterval(nsecs_t frameIntervalNanos); 73 74 static uint32_t findPercentile(const ProfileData* data, int p); 75 static void dumpData(const ProfileData* data, int fd); 76 77 std::array<int64_t, NUM_BUCKETS> mThresholds; 78 int64_t mFrameInterval; 79 ProfileData* mData; 80 bool mIsMapped = false; 81}; 82 83} /* namespace uirenderer */ 84} /* namespace android */ 85 86#endif /* JANKTRACKER_H_ */ 87