Java Nmon Analyser Files

User's  guide
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1. Download and install nmon.
 - for linux platform, you can download form: http://nmon.sourceforge.net.
 - For AIX platform, you can download form : http://www.ibm.com/developerworks/wikis/display/WikiPtype/nmon , AIX 5.3 TL09+ and AIX 6.1 TL02 include nmon function within topas and its installed by default.

2. Make a pipe for nmon.
#mkfifo /tmp/nmonnamedpipe 

3. Run analyser's agent in target host:
# java -cp nmonanal_0.1.2.jar li.xiang.nmonanalyser.agent.Agent

4. Run nmon, begin performance capture.
 #nmon -s 20 -c 360 -F /tmp/nmonnamedpipe  
20 second per snapshot, capture 360 snapshots, totally 2 hrs. you can put the command in crontab for long time data capture.

5. Run java nmon analyser gui.
# java -jar nmonanal_0.1.2.jar

5.1 Get the real-time performance data from agent

Main menu --> " Data Loader "  --> "from agent".  Input the target's ip address and port number(default is 8187).

5.2 Get the performance data form nmon data collection file.

Developer's guide.
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The interface NmonDataLoader load nmon data for analyzing, Interface NmonDataListener is observer of NmonDataLoader. It can  rgister in NmonDataLoader, NmonDataLoader callback  NmonDataListener, when NmonDataLoader read a nmon output line. NmonDataListener parser the nmon data and return the performance charts by getCharts().

There 2 NmonDataLoader implement : NmonFileLoader and NmonAgentLoader , NmonFileLoader  load nmon data from nmon collection file. NmonAgentLoader load nmon data from agent. 

There 3 NmonListener implement: CPUTagCharts, MEMTagCharts, PaginTagCharts, DiskTagCharts and NetworkCharts. 

The sample load data from nmon file, and get the CPU cacategory performance charts : 


NmonDataLoader loader = new NmonFileLoader("/tmp/nmonsampleoutput.nmon");
CPUTagCharts  cpuCharts = new CPUTagCharts();
loader.addDataObserver(cpuCharts);
Thread loadThread = new Thread(loader);
loadThread.start();
JFreeChart[] charts = cpuCharts.getCharts();