Analyzing OSWbb Archived Files

You can use the OSWbb analyzer (OSWbba) to provide information about system slowdowns, system delays, and other performance problems. You can also use OSWbba to graph data that's collected from the iostat, netstat, and vmstat utilities. OSWbba requires that you have Java version 1.4.2 or a later version installed on the system.

You can download a Java RPM for Linux by visiting http://www.java.com, or you can install Java by using the dnf command: 

sudo dnf install java-1.8.0-jdk

Run OSWbba from the oswbb directory as follows: 

sudo java -jar oswbba.jar -i OSWbba_archive

In the previous command, OSWbba_archive is the path of the archive directory that contains the OSWbb log files.

You can use OSWbba to display the following types of performance graph:

  • Process run, wait, and block queues.

  • CPU time spent running in system, user, and idle mode.

  • Context switches and interrupts.

  • Free memory and available swap.

  • Reads each second, writes each second, service time for I/O requests, and percentage usage of bandwidth for a specified block device.

You can also use OSWbba to save the analysis to a report file, which reports instances of system slowdown, spikes in run queue length, or memory shortage, describes probable causes, and offers suggestions of how to improve performance. 

sudo java -jar oswbba.jar -i OSWbba_archive -A

For more information about OSWbb and OSWbba, refer to the OSWatcher Black Box User Guide (Article ID 301137.1) and the OSWatcher Black Box Analyzer User Guide (Article ID 461053.1) on My Oracle Support (MOS) at https://support.oracle.com.