util
Class StackStatistics

java.lang.Object
  util.Statistics
      util.StackStatistics

public class StackStatistics
extends Statistics

Statistics from stack samples. Computes hot methods from stack samples.

Constructor Summary

StackStatistics(Map<Thread,List<StackTraceElement[]>> threadStacks)
Creates stack statistics from a list of stack traces.

Method Summary

void	dumpFull(PrintStream out) Prints the full results for the statistics.
void	dumpSummary(PrintStream out) Prints a summary of the statistics.
void	merge(Object obj) Merge two of the same type of statistics together.

Methods inherited from class util.Statistics

printFullHeader, printSummaryHeader, summarizeFloats, summarizeFloats, summarizeFloats, summarizeInts, summarizeInts, summarizeInts, summarizeLongs, summarizeLongs, summarizeLongs, summarizeLongs

Methods inherited from class java.lang.Object

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

Constructor Detail

StackStatistics

public StackStatistics(Map<Thread,List<StackTraceElement[]>> threadStacks)

Creates stack statistics from a list of stack traces.

Parameters:

threadStacks - lists of stack traces for each thread

Method Detail

dumpFull

public void dumpFull(PrintStream out)

Description copied from class: Statistics

Prints the full results for the statistics.

Specified by:

dumpFull in class Statistics

Parameters:

out - output stream

dumpSummary

public void dumpSummary(PrintStream out)

Description copied from class: Statistics

Prints a summary of the statistics. The output should be short and, in most cases, at most one line long.

Specified by:

dumpSummary in class Statistics

Parameters:

out - output stream

merge

public void merge(Object obj)

Description copied from class: Statistics

Merge two of the same type of statistics together. Used to aggregate statistics together.

Specified by:

merge in class Statistics

Parameters:

obj - another statistics object of the same type to be merged with