Wednesday, November 23, 2011

Plotting memory usage on console

This is just a simple hack to play around with gnuplot set to dumb terminal (character console), doesn't meant to be serious application.
First I had written a bash scritp to log memory usage a while ago:

So, while running this script in background (./ > memUsage.dat &), logging the data, the memory usage information can be plotted with gnuplot and watched in real time:
watch -n 1 'gnuplot -e "set terminal dumb;p \"memUsage.dat\" with impulses"'

The chart can be plotted with lines, with impulses or any gnuplot style option.

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