JVM GC Graph
This gem creates a static HTML page that uses Google's Interactive Charts to display JVM heap usage. In order of this to work, you need to pass the following options to the JVM at startup:
-XX:-PrintGCTimeStamps -XX:-PrintGCDetails -Xloggc:<location of log file>
Here is an example:
java -XX:-PrintGCTimeStamps -XX:-PrintGCDetails -Xloggc:/path/to/memory_gc.log MyApp
gem install jvm_gc_graph
Does require the json_pure gem if on 1.8.7.
jvm_gc_graph -f /path/to/memory_gc.log -o /www/gc_log.html
- Looks at /path/to/memory_gc.log which contains the gc log
- Writes the result to the gc_log.html file.
jvm_gc_graph -h for more options.
For a much richer tool, try GCViewer.
Copyright (c) 2010 Richard Outten
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