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Runtime profiling

class promod3.core.StaticRuntimeProfiler

Defines functionality for runtime profiling.

All profiling is completely turned off by default and must be activated at compile-time by adding -DPM3_RUNTIME_PROFILING_LEVEL=N to your CMake call, where N must be larger than 0. If turned off, all these functions will still exist and work but will not do anything. Functionality in the C++ code is usually profiled at level 2, while Python functionality is profiled at level 1. The default profiling only covers the steps of the modelling pipeline.

You can start multiple timers with the same id and statistics will be generated considering the number of timings and the total runtime for that timer. If a timer within another timed entity, the outer timer is paused, while the inner one is running. Hence, the sum of all timers will be the total time spent in any timer (nothing is counted twice!).

static Start(id, level=1)

Start a timer for the given id. This pauses any other currently running timer.

Parameters:
  • id (str) – Identifier for this timer.
  • level (int) – Timer only started if level <= PM3_RUNTIME_PROFILING_LEVEL
static StartScoped(id, level=1)

Start a timer for the given id as in Start(), but this will stop it automatically when the returned variable goes out of scope.

Parameters:
  • id (str) – Identifier for this timer.
  • level (int) – Timer only started if level <= PM3_RUNTIME_PROFILING_LEVEL
Returns:

Object that will call Stop() when it goes out of scope

static Stop(id, level=1)

Stop the currently running timer. If a timer was paused when starting this timer, it will be resumed now. Note that there is no error checking here, so this will fail miserably if no timer is currently running.

Parameters:level (int) – Timer only stopped if level <= PM3_RUNTIME_PROFILING_LEVEL
static PrintSummary(max_to_show=-1)

Display a summary of all timed entities. The timers are collected by id and sorted by total runtime. If more than 10 entries are shown and the used id’s have the form “GROUP::NAME”, an additional summary is shown with the total times spent in each “GROUP”.

Parameters:max_to_show (int) – if >= 0, show only top max_to_show entries.
static IsEnabled()
Returns:True, if PM3_RUNTIME_PROFILING_LEVEL > 0. Otherwise, profiling is completely turned off.
Return type:bool
static Clear()

Clears all timed entries. Note that there is no error checking here, so this will fail miserably if timers are currently running.

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