Ljubljana, Slovenia

Ganglia

Wed, Feb 5, 2014

So far there is a distinct lack of snakes

In the dashboard which I hacked together at MMC RTV Slovenia, I display a set of related flickr searches based on the current state of the system. So far, there's a distinct lack of snakes, volcanoes, lava, fire, explosions and other things that might freak an engineer out as much as a server outage. Thoughts: I like how the hosts are clearly marked when one of their metrics goes over a threshold.

Optimization strategy

Sometimes it's not about just optimizing CPU time away. Looking at the details I could optimize away a badly written SQL query along with some more trivial big-O problem in regard with sorting of video clips which I got out of serialized data. All from a few carefully placed calls. Reducing network bandwidth is just as important as CPU time.