org.epics.pvmanager.sample

Class ScannerLoadTest

java.lang.Object

org.epics.pvmanager.sample.ScannerLoadTest

public class ScannerLoadTest
extends Object

Load test to see the effect on the performance of the scanning.

The test opens a number of local pvs. Since there is no load associated on keeping the local pv open, the total cpu load can be assumed to be the scanning. If can also be used to optimize memory consumption.

2012/11/12 - 1,000 pvs, 1.8%; 10,000 pvs, 18.9%; 100,000 pvs, 34%. GC time ~0%

Author:

carcassi

Constructor Summary

Constructors

Constructor and Description
ScannerLoadTest()

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(String[] args)
static double	measureLoad(int nSec)
static void	profile(int nPvs)
static void	waitForZeroLoad(int timeoutSec)

Methods inherited from class java.lang.Object

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

Constructor Detail

ScannerLoadTest

public ScannerLoadTest()

Method Detail

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

measureLoad

public static double measureLoad(int nSec)
                          throws InterruptedException

Throws:

InterruptedException

waitForZeroLoad

public static void waitForZeroLoad(int timeoutSec)
                            throws InterruptedException

Throws:

InterruptedException

profile

public static void profile(int nPvs)
                    throws Exception

Throws:

Exception