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PDA - Performance Data Analyzer is a tool that helps you to analyze performance data and troubleshoot problems by correlating data from various sources. It comes with parsers for many common formats such as vmstat, mpstat, iostat and allows you to easily display their data in a single graph, interactively zoom in and out, and calculate various statistics from the data.
The pluggable parser framework allows you to implement your own parsers for your data formats, making any of your data accessible for PDA. Parsers provide data in form of multiple series, which each are a sequence of time-value pairs. All data that PDA displays use time on the x-axis and values on the y-axis.
For more information about PDA, visit the homepage at pda.nmichael.de.