MLECO-3202: Reduce Profiler's heap usage
* Profiler now only maintains a running average of profiling stats
* Memory now constant for use cases with multiple inferences like Noise Reduction
Signed-off-by: Richard Burton <richard.burton@arm.com>
Change-Id: I50e0ca802edb637d363c1d61671d48a6885880f7
diff --git a/source/profiler/include/Profiler.hpp b/source/profiler/include/Profiler.hpp
index 581e1e5..e6244ff 100644
--- a/source/profiler/include/Profiler.hpp
+++ b/source/profiler/include/Profiler.hpp
@@ -34,6 +34,7 @@
double avrg;
std::uint64_t min;
std::uint64_t max;
+ std::uint32_t samplesNum = 0;
};
/** Profiling results with calculated statistics. */
@@ -48,11 +49,8 @@
pmu_counters counters;
};
- /* A collection of profiling units. */
- using ProfilingSeries = std::vector<arm::app::ProfilingUnit>;
-
- /* A map for string identifiable profiling series. */
- using ProfilingMap = std::map<std::string, ProfilingSeries>;
+ /* A map for string identifiable profiling statistics. */
+ using ProfilingStats = std::map<std::string, std::vector<Statistics>>;
/**
* @brief A very simple profiler example using the platform timer
@@ -99,23 +97,24 @@
void SetName(const char* str);
private:
- ProfilingMap m_series; /* Profiling series map. */
- pmu_counters m_tstampSt{}; /* Container for a current starting timestamp. */
- pmu_counters m_tstampEnd{}; /* Container for a current ending timestamp. */
- bool m_started = false; /* Indicates profiler has been started. */
- std::string m_name; /* Name given to this profiler. */
+ ProfilingStats m_profStats; /* Profiling stats map. */
+ pmu_counters m_tstampSt{}; /* Container for a current starting timestamp. */
+ pmu_counters m_tstampEnd{}; /* Container for a current ending timestamp. */
+ bool m_started = false; /* Indicates profiler has been started. */
+ std::string m_name; /* Name given to this profiler. */
+
/**
- * @brief Appends the profiling unit computed by the "start" and
- * "end" timestamps to the profiling series identified by
- * the name provided.
+ * @brief Updates the running average stats with those computed
+ * by the "start" and "end" timestamps for the profiling
+ * stats identified by the name provided.
* @param[in] start Starting time-stamp.
* @param[in] end Ending time-stamp.
- * @param[in] name Name for the profiling unit series to be
- * appended to.
+ * @param[in] name Name for the profiling running stats series to be
+ * updated.
**/
- void AddProfilingUnit(pmu_counters start, pmu_counters end,
- const std::string& name);
+ void UpdateRunningStats(pmu_counters start, pmu_counters end,
+ const std::string& name);
};
} /* namespace app */