diff options
Diffstat (limited to 'base/time_samples.hpp')
| -rw-r--r-- | base/time_samples.hpp | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/base/time_samples.hpp b/base/time_samples.hpp index b37166b164..c4f1fdf072 100644 --- a/base/time_samples.hpp +++ b/base/time_samples.hpp @@ -6,21 +6,35 @@ namespace my { +// This class can be used in measurements of code blocks performance. +// It can accumulate time samples, and can calculate mean time and +// standard deviation. +// +// *NOTE* This class is NOT thread-safe. class TimeSamples final { public: - void Add(double s); + void Add(double seconds); + // Mean of the accumulated time samples. double GetMean() const; - double GetSd() const; + + // Unbiased standard deviation of the accumulated time samples. + double GetSD() const; + + // Unbiased variance of the accumulated time samples. double GetVar() const; private: - double m_s = 0.0; - double m_s2 = 0.0; + double m_sum = 0.0; + double m_sum2 = 0.0; size_t m_total = 0; }; +// This class can be used as a single scoped time sample. It +// automatically adds time sample on destruction. +// +// *NOTE* This class is NOT thread-safe. class ScopedTimeSample final { public: |