diff options
Diffstat (limited to 'runtime/profiler.h')
| -rw-r--r-- | runtime/profiler.h | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/runtime/profiler.h b/runtime/profiler.h index 6ea6c84..b03b170 100644 --- a/runtime/profiler.h +++ b/runtime/profiler.h @@ -54,10 +54,12 @@ class ProfileSampleResults { void Put(mirror::ArtMethod* method); uint32_t Write(std::ostream &os); + void ReadPrevious(int fd); void Clear(); uint32_t GetNumSamples() { return num_samples_; } void NullMethod() { ++num_null_methods_; } void BootMethod() { ++num_boot_methods_; } + private: uint32_t Hash(mirror::ArtMethod* method); static constexpr int kHashSize = 17; @@ -68,6 +70,19 @@ class ProfileSampleResults { typedef std::map<mirror::ArtMethod*, uint32_t> Map; // Map of method vs its count. Map *table[kHashSize]; + + struct PreviousValue { + PreviousValue() : count_(0), method_size_(0) {} + PreviousValue(uint32_t count, uint32_t method_size) : count_(count), method_size_(method_size) {} + uint32_t count_; + uint32_t method_size_; + }; + + typedef std::map<std::string, PreviousValue> PreviousProfile; + PreviousProfile previous_; + uint32_t previous_num_samples_; + uint32_t previous_num_null_methods_; // Number of samples where can don't know the method. + uint32_t previous_num_boot_methods_; // Number of samples in the boot path. }; // @@ -87,7 +102,8 @@ class ProfileSampleResults { class BackgroundMethodSamplingProfiler { public: - static void Start(int period, int duration, std::string profile_filename, int interval_us, + static void Start(int period, int duration, const std::string& profile_filename, + const std::string& procName, int interval_us, double backoff_coefficient, bool startImmediately) LOCKS_EXCLUDED(Locks::mutator_lock_, Locks::thread_list_lock_, @@ -104,8 +120,10 @@ class BackgroundMethodSamplingProfiler { } private: - explicit BackgroundMethodSamplingProfiler(int period, int duration, std::string profile_filename, - double backoff_coefficient, int interval_us, bool startImmediately); + explicit BackgroundMethodSamplingProfiler(int period, int duration, + const std::string& profile_filename, + const std::string& process_name, + double backoff_coefficient, int interval_us, bool startImmediately); // The sampling interval in microseconds is passed as an argument. static void* RunProfilerThread(void* arg) LOCKS_EXCLUDED(Locks::profiler_lock_); @@ -130,6 +148,9 @@ class BackgroundMethodSamplingProfiler { // File to write profile data out to. Cannot be empty if we are profiling. std::string profile_file_name_; + // Process name. + std::string process_name_; + // Number of seconds between profile runs. uint32_t period_s_; |