cloud.orbit.profiler

Class ProfilerCollector

java.lang.Object

cloud.orbit.profiler.ProfilerCollector

public class ProfilerCollector
extends Object

This is a mini execution profiler that can seat in a server collecting profile samples when triggered externally.

It can be used to have online profile information about the worst performance bottlenecks.

The profile collector is not thread safe.

Author:

Daniel Sperry

Field Summary

Fields

Modifier and Type	Field and Description
static String	GLOBAL

Constructor Summary

Constructors

Constructor and Description
ProfilerCollector()

Method Summary

Modifier and Type	Method and Description
void	clear()
void	collect()
void	collect(Thread thread) Override this method to collect based other criteria If the application knows that a certain type of task happens in a certain thread, it is possible to group the information by that type of task.
void	collectByKey(Object key, StackTraceElement[] stackTrace)
Map<Object,ProfilerData>	getProfilerData()

Methods inherited from class java.lang.Object

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

Field Detail

GLOBAL

public static final String GLOBAL

See Also:

Constant Field Values

Constructor Detail

ProfilerCollector

public ProfilerCollector()

Method Detail

collect

public void collect()

collect

public void collect(Thread thread)

Override this method to collect based other criteria

If the application knows that a certain type of task happens in a certain thread, it is possible to group the information by that type of task.

Example collect the information grouped by request path, api call, or actor.

It's advisable to either override this method or to call collectByKey directly

Collecting per thread usually produces too much information. Some idle threads are also irrelevant for instance idle worker threads and skew the data.

collectByKey

public void collectByKey(Object key,
                         StackTraceElement[] stackTrace)

getProfilerData

public Map<Object,ProfilerData> getProfilerData()

clear

public void clear()