As one of the guys behind Monit, thanks for that! We're about to improve Monit further by adding realtime (ms resolution) scheduling and monitoring (libev or libuv) which we hope will make Monit even more useful.
Hey.. We use monit and mmonit on all our servers for a lot of varied services, and it is truly a life saver! I only wish the web console for mmonit was a little more detailed and showed more system information. It is also sometimes helpful to see a graph of memory, cpu usage, and server response time over the time axis to see the current system load.