mirror of https://github.com/probonopd/MiniDexed
https://github.com/probonopd/MiniDexed/issues/12#issuecomment-1051853664 Thanks @rsta2pull/30/head
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//
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// perftimer.cpp
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//
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#include "perftimer.h" |
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#include <iostream> |
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CPerformanceTimer::CPerformanceTimer (const char *pName, unsigned nDeadlineMicros) |
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: m_Name (pName), |
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m_nDeadlineMicros (nDeadlineMicros), |
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m_nMaximumMicros (0), |
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m_nLastDumpTicks (0) |
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{ |
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} |
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void CPerformanceTimer::Start (void) |
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{ |
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m_nStartTicks = CTimer::GetClockTicks (); |
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} |
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void CPerformanceTimer::Stop (void) |
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{ |
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unsigned nEndTicks = CTimer::GetClockTicks (); |
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unsigned nMicros = (nEndTicks - m_nStartTicks) / (CLOCKHZ / 1000000); |
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if (nMicros > m_nMaximumMicros) |
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{ |
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m_nMaximumMicros = nMicros; |
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} |
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} |
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void CPerformanceTimer::Dump (unsigned nIntervalTicks) |
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{ |
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unsigned nTicks = CTimer::GetClockTicks (); |
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if (nTicks - m_nLastDumpTicks >= nIntervalTicks) |
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{ |
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m_nLastDumpTicks = nTicks; |
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unsigned nMaximumMicros = m_nMaximumMicros; // may be overwritten from interrupt
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std::cout << m_Name << ": Maximum duration was " << nMaximumMicros << "us"; |
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if (m_nDeadlineMicros != 0) |
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{ |
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std::cout << " (" << nMaximumMicros*100 / m_nDeadlineMicros << "%)"; |
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} |
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std::cout << std::endl; |
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} |
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} |
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//
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// perftimer.h
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//
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#ifndef _perftimer_h |
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#define _perftimer_h |
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#include <string> |
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#include <circle/timer.h> |
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class CPerformanceTimer |
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{ |
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public: |
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CPerformanceTimer (const char *pName, unsigned nDeadlineMicros = 0); |
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void Start (void); |
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void Stop (void); |
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void Dump (unsigned nIntervalTicks = CLOCKHZ); |
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private: |
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std::string m_Name; |
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unsigned m_nDeadlineMicros; |
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unsigned m_nStartTicks; |
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unsigned m_nMaximumMicros; |
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unsigned m_nLastDumpTicks; |
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}; |
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#endif |
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