1 /* 2 * Copyright (C) 2017 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 17 #pragma once 18 19 #include "utils/Macros.h" 20 21 #include <utils/Timers.h> 22 23 #include <array> 24 #include <functional> 25 #include <tuple> 26 27 namespace android { 28 namespace uirenderer { 29 30 enum JankType { 31 kMissedVsync = 0, 32 kHighInputLatency, 33 kSlowUI, 34 kSlowSync, 35 kSlowRT, 36 37 // must be last 38 NUM_BUCKETS, 39 }; 40 41 // For testing 42 class MockProfileData; 43 44 // Try to keep as small as possible, should match ASHMEM_SIZE in 45 // GraphicsStatsService.java 46 class ProfileData { 47 PREVENT_COPY_AND_ASSIGN(ProfileData); 48 49 public: 50 ProfileData() { reset(); } 51 52 void reset(); 53 void mergeWith(const ProfileData& other); 54 void dump(int fd) const; 55 uint32_t findPercentile(int percentile) const; 56 57 void reportFrame(int64_t duration); 58 void reportJank() { mJankFrameCount++; } 59 void reportJankType(JankType type) { mJankTypeCounts[static_cast<int>(type)]++; } 60 61 uint32_t totalFrameCount() const { return mTotalFrameCount; } 62 uint32_t jankFrameCount() const { return mJankFrameCount; } 63 nsecs_t statsStartTime() const { return mStatStartTime; } 64 uint32_t jankTypeCount(JankType type) const { return mJankTypeCounts[static_cast<int>(type)]; } 65 66 struct HistogramEntry { 67 uint32_t renderTimeMs; 68 uint32_t frameCount; 69 }; 70 void histogramForEach(const std::function<void(HistogramEntry)>& callback) const; 71 72 constexpr static int HistogramSize() { 73 return std::tuple_size<decltype(ProfileData::mFrameCounts)>::value 74 + std::tuple_size<decltype(ProfileData::mSlowFrameCounts)>::value; 75 } 76 77 // Visible for testing 78 static uint32_t frameTimeForFrameCountIndex(uint32_t index); 79 static uint32_t frameTimeForSlowFrameCountIndex(uint32_t index); 80 81 private: 82 // Open our guts up to unit tests 83 friend class MockProfileData; 84 85 std::array <uint32_t, NUM_BUCKETS> mJankTypeCounts; 86 // See comments on kBucket* constants for what this holds 87 std::array<uint32_t, 57> mFrameCounts; 88 // Holds a histogram of frame times in 50ms increments from 150ms to 5s 89 std::array<uint16_t, 97> mSlowFrameCounts; 90 91 uint32_t mTotalFrameCount; 92 uint32_t mJankFrameCount; 93 nsecs_t mStatStartTime; 94 }; 95 96 // For testing 97 class MockProfileData : public ProfileData { 98 public: 99 std::array<uint32_t, NUM_BUCKETS>& editJankTypeCounts() { return mJankTypeCounts; } 100 std::array<uint32_t, 57>& editFrameCounts() { return mFrameCounts; } 101 std::array<uint16_t, 97>& editSlowFrameCounts() { return mSlowFrameCounts; } 102 uint32_t& editTotalFrameCount() { return mTotalFrameCount; } 103 uint32_t& editJankFrameCount() { return mJankFrameCount; } 104 nsecs_t& editStatStartTime() { return mStatStartTime; } 105 }; 106 107 } /* namespace uirenderer */ 108 } /* namespace android */ 109 110
