Use Windows Performance Monitor after large package changes and from time to time checkups

Microsoft Performance Monitor can help you keep track of how your Marquee server is handling its load. You should monitor, CPU, memory, disk, and Network counters. Additionally you should monitor the ININ.IWP.Marquee.WinService process.

https://technet.microsoft.com/en-us/library/cc749249.aspx

Use Windows Resource Monitor (note: this is different than Windows Performance Monitor) after large package changes and from time to time checkups to monitor network load. With the use of Windows Resource Monitor you should track the ININ.IWP.Marquee.WinService.exe and w3wp.exe processes noting changes to the total bytes per second for these processes.

http://blogs.technet.com/b/askperf/archive/2012/02/01/using-resource-monitor-to-troubleshoot-windows-performance-issues-part-1.aspx

Anytime packages are changed to increase the number of statistics by more than a few thousand statistics consider running Performance monitor for a period of time to see the impact of package changes. Do this when a few packages are added that have really low execution intervals. It is also good to run the monitor for a period of time as a checkup on how your Marquee server is performing.