Package net.obvj.performetrics

Provides convenient classes for extracting performance metrics of Java code.

See: Description

Class Summary

Class	Description
Counter	An object that stores time units of a particular type for elapsed time evaluation.
Performetrics	A Facade class meant to provide a simple interface for common parameters setup and other operations.
Stopwatch	A convenient timing object that supports multiple counter types and timing sessions.
TimingSession	A convenient timing object that supports multiple counter types.

Enum Summary

Enum	Description
ConversionMode	Defines supported conversion modes.
Counter.Type	Enumerates all supported counter types, defining a particular time fetch strategy for each of them.

Package net.obvj.performetrics Description

Provides convenient classes for extracting performance metrics of Java code.

The top-level package contains the Counter class, capable of computing the following metrics:

• Wall-clock time: the elapsed time experienced by a user waiting for a task to complete
• CPU time: the total time spent using a CPU for the current thread
• User time: the total CPU time that the current thread has executed in user mode, i.e., the time spent running current thread's code
• System time: the time spent by the OS kernel to execute all the basic/system-level operations on behalf of your application, such as context switching, resource allocation, etc.

This package also contains the Stopwatch class that supports all of the abovementioned counters.

Global configuration parameters, such as default conversion mode, time unit, and precision, can be set up using the Performetrics facade.