Fixing MenuMeters in OS X EI Captain

Knowing what your system is doing at all times is a must :). Recently I was working and was seeing some usually slow system behaviour. Usually this is easy to spot, fire up your favourite task monitoring utility and do some digging. I have recently been exploring tools on OS X and had learn to […]

Graphing Prstat raw data with Python, matplotlib and pandas

On a recent performance testing engagement the customer didn’t have a resource monitoring solution in place.  Luckily, most Unix OS’s have awesome tools, just takes a little tinkering. So, for the project requirements, I needed the following two system level KPI’s: CPU usage Java HEAP usage As you may know, prstat can’t provide data for […]

Graphing verbose GC logs using Python and Matplotlib

I was recently working on a project that required some resource automation. Since the target application server was running on Java, I wanted to provide Java Heap statistics. I didn’t have access to instrument the JVM, so I was forced to use the verbose GC logs generated by the application server. One challenge was that […]

How to install munin on Ubuntu

I was recently installing a monitoring tool to monitor my website and owncloud.  I found myself installing munin and thought I may as well put together quick install note; nothing elaborate, just a few simple steps.  It is assumed you know what you are doing with Ubuntu and Apache2. About Munin Munin is a helpful […]

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