My first inclination here would be something built into SAR, or the sysstat package in general. If that is indeed the case however, I can't seem to find this solution.
What I would like to see, and absolutely preferably through sysstat if possible, is a historical log of process usage (memory, CPU, etc.) in much the same format as SAR logs (if not already directly available through SAR files somehow). I know monitoring software is available, but I'm more-so looking for a mostly non-intrusive package, and actually something that could be parsed relatively intuitively via statsd/collectd.