dash::util::Timer< TimeMeasure::Clock > Class Template Reference

Public Types
typedef Timestamp::counter_t	timestamp_t
typedef Timestamp_t	timestamp_type
typedef timestamp_t	timestamp

Public Member Functions
	Timer (const self_t &other)=default
Timer &	operator= (const self_t &other)
double	Elapsed () const
	Microseconds elapsed since instantiation of this Timer object. More...
const timestamp_t &	Start () const
	Returns timestamp from instantiation of this Timer. More...

Static Public Member Functions
static double	ElapsedSince (timestamp_t timestamp)
	Microseconds elapsed since given timestamp. More...
static timestamp_t	Now ()
	Produces current timestamp. More...
static double	FromInterval (const timestamp_t &start, const timestamp_t &end)
	Convert interval of two timestamp values to microseconds. More...
static double	FromInterval (const double &start, const double &end)
	Convert interval of two timestamp values to mircoseconds. More...
static void	Calibrate (unsigned int freq=0)
static const char *	TimerName ()
static Timestamp::counter_t	TimestampInfinity ()
static Timestamp::counter_t	TimestampNegInfinity ()
static double	FrequencyScaling ()

Detailed Description

template<>
class dash::util::Timer< TimeMeasure::Clock >

Definition at line 32 of file Timer.h.

Member Function Documentation

Elapsed()

double dash::util::Timer< TimeMeasure::Clock >::Elapsed ( ) const

inline

Microseconds elapsed since instantiation of this Timer object.

Definition at line 79 of file Timer.h.

  {
    timestamp_t now;
    Timestamp_t timestamp;
    now = timestamp.Value();
    return (static_cast<double>(now - timestampStart) *
      static_cast<double>(Timestamp_t::FrequencyPrescale())) /
      static_cast<double>(Timestamp_t::FrequencyScaling());
  }

ElapsedSince()

static double dash::util::Timer< TimeMeasure::Clock >::ElapsedSince ( timestamp_t  timestamp )

inlinestatic

Microseconds elapsed since given timestamp.

Definition at line 100 of file Timer.h.

  {
    Timestamp_t now;
    return (static_cast<double>(now.Value() - timestamp) *
      static_cast<double>(Timestamp_t::FrequencyPrescale())) /
      static_cast<double>(Timestamp_t::FrequencyScaling());
  }

FromInterval() [1/2]

static double dash::util::Timer< TimeMeasure::Clock >::FromInterval ( const timestamp_t &  start, const timestamp_t &  end  )

inlinestatic

Convert interval of two timestamp values to microseconds.

Definition at line 120 of file Timer.h.

  {
    return (static_cast<double>(end - start) *
      static_cast<double>(Timestamp_t::FrequencyPrescale())) /
      static_cast<double>(Timestamp_t::FrequencyScaling());
  }

FromInterval() [2/2]

static double dash::util::Timer< TimeMeasure::Clock >::FromInterval ( const double &  start, const double &  end  )

inlinestatic

Convert interval of two timestamp values to mircoseconds.

Definition at line 132 of file Timer.h.

  {
    return ((end - start) *
      Timestamp_t::FrequencyPrescale() /
      Timestamp_t::FrequencyScaling());
  }

Now()

static timestamp_t dash::util::Timer< TimeMeasure::Clock >::Now ( )

inlinestatic

Produces current timestamp.

Definition at line 111 of file Timer.h.

  {
    Timestamp_t timestamp;
    return timestamp.Value();
  }

Start()

const timestamp_t& dash::util::Timer< TimeMeasure::Clock >::Start ( ) const

inline

Returns timestamp from instantiation of this Timer.

Definition at line 92 of file Timer.h.

  {
    return timestampStart;
  }

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The documentation for this class was generated from the following file:

• /tmp/tmporruphar/dash/include/dash/util/Timer.h