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      1 /*
      2  * Copyright (C) 2016 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  * * See the License for the specific language governing permissions and
     10  * limitations under the License.
     11  */
     12 
     13 #ifndef ART_RUNTIME_JIT_PROFILE_SAVER_OPTIONS_H_
     14 #define ART_RUNTIME_JIT_PROFILE_SAVER_OPTIONS_H_
     15 
     16 #include <string>
     17 #include <ostream>
     18 
     19 namespace art {
     20 
     21 struct ProfileSaverOptions {
     22  public:
     23   static constexpr uint32_t kMinSavePeriodMs = 40 * 1000;  // 40 seconds
     24   static constexpr uint32_t kSaveResolvedClassesDelayMs = 5 * 1000;  // 5 seconds
     25   // Minimum number of JIT samples during launch to include a method into the profile.
     26   static constexpr uint32_t kStartupMethodSamples = 1;
     27   static constexpr uint32_t kMinMethodsToSave = 10;
     28   static constexpr uint32_t kMinClassesToSave = 10;
     29   static constexpr uint32_t kMinNotificationBeforeWake = 10;
     30   static constexpr uint32_t kMaxNotificationBeforeWake = 50;
     31 
     32   ProfileSaverOptions() :
     33     enabled_(false),
     34     min_save_period_ms_(kMinSavePeriodMs),
     35     save_resolved_classes_delay_ms_(kSaveResolvedClassesDelayMs),
     36     startup_method_samples_(kStartupMethodSamples),
     37     min_methods_to_save_(kMinMethodsToSave),
     38     min_classes_to_save_(kMinClassesToSave),
     39     min_notification_before_wake_(kMinNotificationBeforeWake),
     40     max_notification_before_wake_(kMaxNotificationBeforeWake),
     41     profile_path_("") {}
     42 
     43   ProfileSaverOptions(
     44       bool enabled,
     45       uint32_t min_save_period_ms,
     46       uint32_t save_resolved_classes_delay_ms,
     47       uint32_t startup_method_samples,
     48       uint32_t min_methods_to_save,
     49       uint32_t min_classes_to_save,
     50       uint32_t min_notification_before_wake,
     51       uint32_t max_notification_before_wake,
     52       const std::string& profile_path):
     53     enabled_(enabled),
     54     min_save_period_ms_(min_save_period_ms),
     55     save_resolved_classes_delay_ms_(save_resolved_classes_delay_ms),
     56     startup_method_samples_(startup_method_samples),
     57     min_methods_to_save_(min_methods_to_save),
     58     min_classes_to_save_(min_classes_to_save),
     59     min_notification_before_wake_(min_notification_before_wake),
     60     max_notification_before_wake_(max_notification_before_wake),
     61     profile_path_(profile_path) {}
     62 
     63   bool IsEnabled() const {
     64     return enabled_;
     65   }
     66   void SetEnabled(bool enabled) {
     67     enabled_ = enabled;
     68   }
     69 
     70   uint32_t GetMinSavePeriodMs() const {
     71     return min_save_period_ms_;
     72   }
     73   uint32_t GetSaveResolvedClassesDelayMs() const {
     74     return save_resolved_classes_delay_ms_;
     75   }
     76   uint32_t GetStartupMethodSamples() const {
     77     return startup_method_samples_;
     78   }
     79   uint32_t GetMinMethodsToSave() const {
     80     return min_methods_to_save_;
     81   }
     82   uint32_t GetMinClassesToSave() const {
     83     return min_classes_to_save_;
     84   }
     85   uint32_t GetMinNotificationBeforeWake() const {
     86     return min_notification_before_wake_;
     87   }
     88   uint32_t GetMaxNotificationBeforeWake() const {
     89     return max_notification_before_wake_;
     90   }
     91   std::string GetProfilePath() const {
     92     return profile_path_;
     93   }
     94 
     95   friend std::ostream & operator<<(std::ostream &os, const ProfileSaverOptions& pso) {
     96     os << "enabled_" << pso.enabled_
     97         << ", min_save_period_ms_" << pso.min_save_period_ms_
     98         << ", save_resolved_classes_delay_ms_" << pso.save_resolved_classes_delay_ms_
     99         << ", startup_method_samples_" << pso.startup_method_samples_
    100         << ", min_methods_to_save_" << pso.min_methods_to_save_
    101         << ", min_classes_to_save_" << pso.min_classes_to_save_
    102         << ", min_notification_before_wake_" << pso.min_notification_before_wake_
    103         << ", max_notification_before_wake_" << pso.max_notification_before_wake_;
    104     return os;
    105   }
    106 
    107   bool enabled_;
    108   uint32_t min_save_period_ms_;
    109   uint32_t save_resolved_classes_delay_ms_;
    110   uint32_t startup_method_samples_;
    111   uint32_t min_methods_to_save_;
    112   uint32_t min_classes_to_save_;
    113   uint32_t min_notification_before_wake_;
    114   uint32_t max_notification_before_wake_;
    115   std::string profile_path_;
    116 };
    117 
    118 }  // namespace art
    119 
    120 #endif  // ART_RUNTIME_JIT_PROFILE_SAVER_OPTIONS_H_
    121