/*******************************************************************************
* Copyright (c) 2003, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.test.internal.performance;
import java.util.Map;
/**
* The Mac OS X version of the performance monitor.
* (Uses default implementation for now).
*/
class PerformanceMonitorMac extends PerformanceMonitor {
private static boolean fgHasElapsedTime= true;
private static long fgStartupTime;
/**
* name of the library that implements the native methods.
*/
private static final String NATIVE_LIBRARY_NAME= "perf_3_1_0"; //$NON-NLS-1$
/**
* Is the native library loaded? 0-don't know, 1-no, 2-yes
*/
private static int fgIsLoaded= 0;
/**
* Answer true if the native library for this class has been successfully
* loaded. If the load has not been attempted yet, try to load it.
* @return returns true if native library has been successfullz loaded
*/
public static boolean isLoaded() {
if (fgIsLoaded == 0) {
try {
System.loadLibrary(NATIVE_LIBRARY_NAME);
fgIsLoaded= 2;
} catch (Throwable e) {
//e.printStackTrace();
//PerformanceTestPlugin.log(e);
fgIsLoaded= 1;
}
}
return fgIsLoaded == 2;
}
/**
* Write out operating system counters for Mac OS X.
* @param scalars where to collect the data
*/
protected void collectOperatingSystemCounters(Map scalars) {
synchronized(this) {
if (isLoaded()) {
int[] counters= new int[18];
if (getrusage(0, counters) == 0) {
int user_time= counters[0]*1000 + counters[1]/1000;
int kernel_time= counters[2]*1000 + counters[3]/1000;
addScalar(scalars, InternalDimensions.KERNEL_TIME, kernel_time);
addScalar(scalars, InternalDimensions.CPU_TIME, user_time + kernel_time);
}
}
long currentTime= System.currentTimeMillis();
if (!PerformanceTestPlugin.isOldDB())
addScalar(scalars, InternalDimensions.SYSTEM_TIME, currentTime);
if (fgHasElapsedTime) {
if (fgStartupTime == 0) {
String t= System.getProperty("eclipse.startTime"); //$NON-NLS-1$
if (t != null) {
try {
fgStartupTime= Long.parseLong(t);
} catch (NumberFormatException e) {
fgHasElapsedTime= false;
}
} else
fgHasElapsedTime= false;
}
if (fgHasElapsedTime)
addScalar(scalars, InternalDimensions.ELAPSED_PROCESS, currentTime-fgStartupTime);
}
super.collectOperatingSystemCounters(scalars);
}
}
// struct rusage {
// 0,1 struct timeval ru_utime; /* user time used */
// 2,3 struct timeval ru_stime; /* system time used */
// 4 long ru_maxrss; /* integral max resident set size */
// 5 long ru_ixrss; /* integral shared text memory size */
// 6 long ru_idrss; /* integral unshared data size */
// 7 long ru_isrss; /* integral unshared stack size */
// 8 long ru_minflt; /* page reclaims */
// 9 long ru_majflt; /* page faults */
// 10 long ru_nswap; /* swaps */
// 11 long ru_inblock; /* block input operations */
// 12 long ru_oublock; /* block output operations */
// 13 long ru_msgsnd; /* messages sent */
// 14 long ru_msgrcv; /* messages received */
// 15 long ru_nsignals; /* signals received */
// 16 long ru_nvcsw; /* voluntary context switches */
// 17 long ru_nivcsw; /* involuntary context switches */
// };
private static native int getrusage(int who, int[] counters);
}