PsParser (Bootchart)

java.lang.Object

org.bootchart.parser.linux.PsParser

public class PsParser extends Object

PsParser parses log files produced by ps.

Constructor Summary

Constructors

Constructor

Description

PsParser()
Method Summary

Modifier and Type

Method

Description

static int

getState(Map procInfo)

Returns the process state.

static PsStats

parseLog(InputStream is, Map pidNameMap, Map forkMap)

Parses the ps.log file.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- PsParser
  
  public PsParser()
Method Details
- parseLog
  
  public static PsStats parseLog(InputStream is, Map pidNameMap, Map forkMap) throws IOException
  
  Parses the ps.log file. Consecutive ps samples are parsed and returned in a list. The ps samples are only parsed up to the point where one of the specified exitProcesses is running and the system is idle.
  If pidNameMap is set, it is used to map PIDs to command names. This is useful when init scripts are sourced, and thus ps is unable to report the proper process name. A sysinit modification is necessary to generate the mapping log file.
  
  forkMap is an optional map that provides detailed information about process forking.
  
  Parameters:
  
  is - the input stream to read from
  
  pidNameMap - PID to name mapping map (optional)
  
  forkMap - process forking map (optional)
  
  Returns:
  
  ps statistics and a list of processes
  
  Throws:
  
  IOException - if an I/O error occurs
- getState
  
  public static int getState(Map procInfo)
  Returns the process state. State can be one of:
  
  "D": uninterruptible sleep
  
  "R": running
  
  "S": sleeping
  
  "T": traced or stopped
  
  "Z": zombie
  Parameters:
  
  procInfo - process info map
  
  Returns:
  
  process state