com.atlassian.jira.ipd.filesystem

Class IpdSharedFileWriteLatencyMeter

java.lang.Object

com.atlassian.jira.ipd.filesystem.IpdSharedFileWriteLatencyMeter

public class IpdSharedFileWriteLatencyMeter
extends Object

Makes measurements of file write duration to shared file system without guaranteed persistence.

Since:

9.11

Field Summary

Fields

Modifier and Type	Field and Description
protected java.time.Clock	clock
protected int	numberOfMeasurements
protected Random	random
protected static byte[]	SAMPLE_DATA

Constructor Summary

Constructors

Constructor and Description
IpdSharedFileWriteLatencyMeter(com.atlassian.dc.filestore.api.FileStore.Path file, int numberOfMeasurements)

Method Summary

Modifier and Type	Method and Description
static long	getMedian(List<Long> measurements)
List<java.time.Duration>	makeWriteLatencyMeasurements()
protected java.time.Duration	measureWriteLatency()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SAMPLE_DATA

protected static final byte[] SAMPLE_DATA

random

protected final Random random

numberOfMeasurements

protected final int numberOfMeasurements

clock

protected final java.time.Clock clock

Constructor Detail

IpdSharedFileWriteLatencyMeter

public IpdSharedFileWriteLatencyMeter(com.atlassian.dc.filestore.api.FileStore.Path file,
                                      int numberOfMeasurements)

Method Detail

measureWriteLatency

protected java.time.Duration measureWriteLatency()
                                          throws IOException

Throws:

IOException

makeWriteLatencyMeasurements

public List<java.time.Duration> makeWriteLatencyMeasurements()
                                                      throws IOException,
                                                             InterruptedException

Throws:

IOException

InterruptedException

getMedian

public static long getMedian(List<Long> measurements)