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 <ostream> 17 #include <string> 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 mark a method as hot in the profile. 26 static constexpr uint32_t kHotStartupMethodSamples = 1; 27 static constexpr uint32_t kHotStartupMethodSamplesLowRam = 256; 28 static constexpr uint32_t kMinMethodsToSave = 10; 29 static constexpr uint32_t kMinClassesToSave = 10; 30 static constexpr uint32_t kMinNotificationBeforeWake = 10; 31 static constexpr uint32_t kMaxNotificationBeforeWake = 50; 32 static constexpr uint32_t kHotStartupMethodSamplesNotSet = std::numeric_limits<uint32_t>::max(); 33 34 ProfileSaverOptions() : 35 enabled_(false), 36 min_save_period_ms_(kMinSavePeriodMs), 37 save_resolved_classes_delay_ms_(kSaveResolvedClassesDelayMs), 38 hot_startup_method_samples_(kHotStartupMethodSamplesNotSet), 39 min_methods_to_save_(kMinMethodsToSave), 40 min_classes_to_save_(kMinClassesToSave), 41 min_notification_before_wake_(kMinNotificationBeforeWake), 42 max_notification_before_wake_(kMaxNotificationBeforeWake), 43 profile_path_(""), 44 profile_boot_class_path_(false), 45 profile_aot_code_(false), 46 wait_for_jit_notifications_to_save_(true) {} 47 48 ProfileSaverOptions( 49 bool enabled, 50 uint32_t min_save_period_ms, 51 uint32_t save_resolved_classes_delay_ms, 52 uint32_t hot_startup_method_samples, 53 uint32_t min_methods_to_save, 54 uint32_t min_classes_to_save, 55 uint32_t min_notification_before_wake, 56 uint32_t max_notification_before_wake, 57 const std::string& profile_path, 58 bool profile_boot_class_path, 59 bool profile_aot_code = false, 60 bool wait_for_jit_notifications_to_save = true) 61 : enabled_(enabled), 62 min_save_period_ms_(min_save_period_ms), 63 save_resolved_classes_delay_ms_(save_resolved_classes_delay_ms), 64 hot_startup_method_samples_(hot_startup_method_samples), 65 min_methods_to_save_(min_methods_to_save), 66 min_classes_to_save_(min_classes_to_save), 67 min_notification_before_wake_(min_notification_before_wake), 68 max_notification_before_wake_(max_notification_before_wake), 69 profile_path_(profile_path), 70 profile_boot_class_path_(profile_boot_class_path), 71 profile_aot_code_(profile_aot_code), 72 wait_for_jit_notifications_to_save_(wait_for_jit_notifications_to_save) {} 73 74 bool IsEnabled() const { 75 return enabled_; 76 } 77 void SetEnabled(bool enabled) { 78 enabled_ = enabled; 79 } 80 81 uint32_t GetMinSavePeriodMs() const { 82 return min_save_period_ms_; 83 } 84 uint32_t GetSaveResolvedClassesDelayMs() const { 85 return save_resolved_classes_delay_ms_; 86 } 87 uint32_t GetHotStartupMethodSamples(bool is_low_ram) const { 88 uint32_t ret = hot_startup_method_samples_; 89 if (ret == kHotStartupMethodSamplesNotSet) { 90 ret = is_low_ram ? kHotStartupMethodSamplesLowRam : kHotStartupMethodSamples; 91 } 92 return ret; 93 } 94 uint32_t GetMinMethodsToSave() const { 95 return min_methods_to_save_; 96 } 97 uint32_t GetMinClassesToSave() const { 98 return min_classes_to_save_; 99 } 100 uint32_t GetMinNotificationBeforeWake() const { 101 return min_notification_before_wake_; 102 } 103 uint32_t GetMaxNotificationBeforeWake() const { 104 return max_notification_before_wake_; 105 } 106 std::string GetProfilePath() const { 107 return profile_path_; 108 } 109 bool GetProfileBootClassPath() const { 110 return profile_boot_class_path_; 111 } 112 bool GetProfileAOTCode() const { 113 return profile_aot_code_; 114 } 115 void SetProfileAOTCode(bool value) { 116 profile_aot_code_ = value; 117 } 118 bool GetWaitForJitNotificationsToSave() const { 119 return wait_for_jit_notifications_to_save_; 120 } 121 void SetWaitForJitNotificationsToSave(bool value) { 122 wait_for_jit_notifications_to_save_ = value; 123 } 124 125 friend std::ostream & operator<<(std::ostream &os, const ProfileSaverOptions& pso) { 126 os << "enabled_" << pso.enabled_ 127 << ", min_save_period_ms_" << pso.min_save_period_ms_ 128 << ", save_resolved_classes_delay_ms_" << pso.save_resolved_classes_delay_ms_ 129 << ", hot_startup_method_samples_" << pso.hot_startup_method_samples_ 130 << ", min_methods_to_save_" << pso.min_methods_to_save_ 131 << ", min_classes_to_save_" << pso.min_classes_to_save_ 132 << ", min_notification_before_wake_" << pso.min_notification_before_wake_ 133 << ", max_notification_before_wake_" << pso.max_notification_before_wake_ 134 << ", profile_boot_class_path_" << pso.profile_boot_class_path_ 135 << ", profile_aot_code_" << pso.profile_aot_code_ 136 << ", wait_for_jit_notifications_to_save_" << pso.wait_for_jit_notifications_to_save_; 137 return os; 138 } 139 140 bool enabled_; 141 uint32_t min_save_period_ms_; 142 uint32_t save_resolved_classes_delay_ms_; 143 // Do not access hot_startup_method_samples_ directly for reading since it may be set to the 144 // placeholder default. 145 uint32_t hot_startup_method_samples_; 146 uint32_t min_methods_to_save_; 147 uint32_t min_classes_to_save_; 148 uint32_t min_notification_before_wake_; 149 uint32_t max_notification_before_wake_; 150 std::string profile_path_; 151 bool profile_boot_class_path_; 152 bool profile_aot_code_; 153 bool wait_for_jit_notifications_to_save_; 154 }; 155 156 } // namespace art 157 158 #endif // ART_RUNTIME_JIT_PROFILE_SAVER_OPTIONS_H_ 159
