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 28 namespace android { 29 namespace uirenderer { 30 31 enum 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 44 struct ProfileData { 45 std::array<uint32_t, NUM_BUCKETS> jankTypeCounts; 46 // See comments on kBucket* constants for what this holds 47 std::array<uint32_t, 55> frameCounts; 48 49 uint32_t totalFrameCount; 50 uint32_t jankFrameCount; 51 nsecs_t statStartTime; 52 }; 53 54 // TODO: Replace DrawProfiler with this 55 class JankTracker { 56 public: 57 JankTracker(nsecs_t frameIntervalNanos); 58 ~JankTracker(); 59 60 void addFrame(const FrameInfo& frame); 61 dump(int fd)62 void dump(int fd) { dumpData(mData, fd); } 63 void reset(); 64 65 void switchStorageToAshmem(int ashmemfd); 66 findPercentile(int p)67 uint32_t findPercentile(int p) { return findPercentile(mData, p); } 68 69 ANDROID_API static void dumpBuffer(const void* buffer, size_t bufsize, int fd); 70 71 private: 72 void freeData(); 73 void setFrameInterval(nsecs_t frameIntervalNanos); 74 75 static uint32_t findPercentile(const ProfileData* data, int p); 76 static void dumpData(const ProfileData* data, int fd); 77 78 std::array<int64_t, NUM_BUCKETS> mThresholds; 79 int64_t mFrameInterval; 80 ProfileData* mData; 81 bool mIsMapped = false; 82 }; 83 84 } /* namespace uirenderer */ 85 } /* namespace android */ 86 87 #endif /* JANKTRACKER_H_ */ 88