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      1 /*
      2  * Copyright 2019 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 <mutex>
     20 #include <unordered_map>
     21 #include <vector>
     22 
     23 #include <graphicsenv/GpuStatsInfo.h>
     24 #include <graphicsenv/GraphicsEnv.h>
     25 #include <utils/String16.h>
     26 #include <utils/Vector.h>
     27 
     28 namespace android {
     29 
     30 class GpuStats {
     31 public:
     32     GpuStats() = default;
     33     ~GpuStats() = default;
     34 
     35     // Insert new gpu stats into global stats and app stats.
     36     void insert(const std::string& driverPackageName, const std::string& driverVersionName,
     37                 uint64_t driverVersionCode, int64_t driverBuildTime,
     38                 const std::string& appPackageName, const int32_t vulkanVersion,
     39                 GraphicsEnv::Driver driver, bool isDriverLoaded, int64_t driverLoadingTime);
     40     // Set CPU Vulkan in use signal into app stats.
     41     void setCpuVulkanInUse(const std::string& appPackageName, const uint64_t driverVersionCode);
     42     // dumpsys interface
     43     void dump(const Vector<String16>& args, std::string* result);
     44     // Pull gpu global stats
     45     void pullGlobalStats(std::vector<GpuStatsGlobalInfo>* outStats);
     46     // Pull gpu app stats
     47     void pullAppStats(std::vector<GpuStatsAppInfo>* outStats);
     48 
     49     // This limits the worst case number of loading times tracked.
     50     static const size_t MAX_NUM_LOADING_TIMES = 50;
     51 
     52 private:
     53     // Dump global stats
     54     void dumpGlobalLocked(std::string* result);
     55     // Dump app stats
     56     void dumpAppLocked(std::string* result);
     57     // Append cpuVulkanVersion and glesVersion to system driver stats
     58     void interceptSystemDriverStatsLocked();
     59 
     60     // Below limits the memory usage of GpuStats to be less than 10KB. This is
     61     // the preferred number for statsd while maintaining nice data quality.
     62     static const size_t MAX_NUM_APP_RECORDS = 100;
     63     // GpuStats access should be guarded by mLock.
     64     std::mutex mLock;
     65     // Key is driver version code.
     66     std::unordered_map<uint64_t, GpuStatsGlobalInfo> mGlobalStats;
     67     // Key is <app package name>+<driver version code>.
     68     std::unordered_map<std::string, GpuStatsAppInfo> mAppStats;
     69 };
     70 
     71 } // namespace android
     72