If you want to get a sense of the scale at which systems like Borg (and presumably Mesos) operate, take a look at the Google cluster dataset that was released a

If you want to get a sense of the scale at which systems like Borg (and presumably Mesos) operate, take a look at the Google cluster dataset that was released a while back: https://code.google.com/p/googleclusterdata/ https://code.google.com/p/googleclusterdata/ "The trace represents 29 day's worth of cell information from May 2011, on a cluster of about 11k machines" A sample: over a 7 hour period, just that one cluster executed 3.5 million unique tasks.