Package com.codahale.metrics
Class Meter
- java.lang.Object
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- com.codahale.metrics.Meter
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description long
getCount()
Returns the number of events which have been marked.double
getFifteenMinuteRate()
Returns the fifteen-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.double
getFiveMinuteRate()
Returns the five-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.double
getMeanRate()
Returns the mean rate at which events have occurred since the meter was created.double
getOneMinuteRate()
Returns the one-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.void
mark()
Mark the occurrence of an event.void
mark(long n)
Mark the occurrence of a given number of events.private void
tickIfNecessary()
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Field Detail
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TICK_INTERVAL
private static final long TICK_INTERVAL
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m1Rate
private final EWMA m1Rate
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m5Rate
private final EWMA m5Rate
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m15Rate
private final EWMA m15Rate
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count
private final LongAdder count
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startTime
private final long startTime
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lastTick
private final java.util.concurrent.atomic.AtomicLong lastTick
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clock
private final Clock clock
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Method Detail
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mark
public void mark()
Mark the occurrence of an event.
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mark
public void mark(long n)
Mark the occurrence of a given number of events.- Parameters:
n
- the number of events
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tickIfNecessary
private void tickIfNecessary()
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getCount
public long getCount()
Description copied from interface:Metered
Returns the number of events which have been marked.
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getFifteenMinuteRate
public double getFifteenMinuteRate()
Description copied from interface:Metered
Returns the fifteen-minute exponentially-weighted moving average rate at which events have occurred since the meter was created. This rate has the same exponential decay factor as the fifteen-minute load average in thetop
Unix command.- Specified by:
getFifteenMinuteRate
in interfaceMetered
- Returns:
- the fifteen-minute exponentially-weighted moving average rate at which events have occurred since the meter was created
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getFiveMinuteRate
public double getFiveMinuteRate()
Description copied from interface:Metered
Returns the five-minute exponentially-weighted moving average rate at which events have occurred since the meter was created. This rate has the same exponential decay factor as the five-minute load average in thetop
Unix command.- Specified by:
getFiveMinuteRate
in interfaceMetered
- Returns:
- the five-minute exponentially-weighted moving average rate at which events have occurred since the meter was created
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getMeanRate
public double getMeanRate()
Description copied from interface:Metered
Returns the mean rate at which events have occurred since the meter was created.- Specified by:
getMeanRate
in interfaceMetered
- Returns:
- the mean rate at which events have occurred since the meter was created
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getOneMinuteRate
public double getOneMinuteRate()
Description copied from interface:Metered
Returns the one-minute exponentially-weighted moving average rate at which events have occurred since the meter was created. This rate has the same exponential decay factor as the one-minute load average in thetop
Unix command.- Specified by:
getOneMinuteRate
in interfaceMetered
- Returns:
- the one-minute exponentially-weighted moving average rate at which events have occurred since the meter was created
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