Performance Tracker project update

[Erik Cederstrand]

Erik Cederstrand wrote:
> 
> I'd like to send a small update on my progress on the Performance 
> Tracker project.
> 
> I now have a small setup of a server and a slave chugging along, 
> currently collecting data. I'm following CURRENT and collecting results 
> from super-smack and unixbench.
> 
> The project still needs some work, but there's a temporary web interface 
> to the data here: http://littlebit.dk:5000/plot/. Apart from the 
> plotting it's possible to compare two dates and see the files that have 
> changed. Error bars are 3*standard deviation, for the points with 
> multiple measurements.

Per the suggestions in this thread, the web interface has now grown an 
overview page and an alerts page.

The alerts are calculated as anything outside mean +/- 2*standard 
deviation in a sliding window of 10 dates. This was found by 
trial-and-error to catch most significant changes without picking up too 
much noise. Anything below a 1% change is discarded.

Erik