CPUWatcher implements a simple runaway process monitoring tool
that will suspend a process that is taking up too much of Squeak's
time and allow user interaction. By default it watches for a Process that
is taking more than 80% of the time; this threshold can be changed.

CPUWatcher can also be used to show cpu percentages for each process
from within the ProcessBrowser.

CPUWatcher startMonitoring. "process period 20 seconds, sample rate 100 msec"
CPUWatcher current monitorProcessPeriod: 10 sampleRate: 20.
CPUWatcher current threshold: 0.5. "change from 80% to 50%"
CPUWatcher stopMonitoring.

	porcine capture
	catchThePig: findThePig openMVCWindowForSuspendedProcess: openMorphicWindowForSuspendedProcess: openWindowForSuspendedProcess:

	process operations
	debugProcess: debugProcess:fromMenu: resumeProcess:fromMenu: terminateProcess:fromMenu:

	startup-shutdown
	monitorProcessPeriod:sampleRate: startMonitoring stopMonitoring

	accessing	top
	isMonitoring
	tally
	threshold What fraction of the time can a process be the active process before we stop it?
	threshold: What fraction of the time can a process be the active process before we stop it?
	watcherProcess

	porcine capture	top
	catchThePig: nickname, allow-stop, allow-debug
	findThePig tally has been updated. Look at it to see if there is a bad process. This runs at a very high priority, so make it fast
	openMVCWindowForSuspendedProcess:
	openMorphicWindowForSuspendedProcess:
	openWindowForSuspendedProcess:

	process operations	top
	debugProcess:
	debugProcess:fromMenu:
	resumeProcess:fromMenu:
	terminateProcess:fromMenu:

	startup-shutdown	top
	monitorProcessPeriod:sampleRate:
	startMonitoring
	stopMonitoring

	as yet unclassified	top
	current
	currentWatcherProcess
	dumpTallyOnTranscript
	isMonitoring
	monitorPreferenceChanged
	startMonitoring CPUWatcher startMonitoring
	startMonitoringPeriod:rate:threshold: CPUWatcher startMonitoring
	stopMonitoring CPUWatcher stopMonitoring