Try this IBM redbooks:
- Tuning Windows Server 2003 on IBM System x Servers (IBM Redbooks | Tuning Windows Server 2003 on IBM System x Servers)
- Tuning IBM System x Servers for Performance (IBM Redbooks | Tuning IBM System x Servers for Performance)
And this resource could be useful Summarizing Xperf CPU Usage with Flame Graphs | Random ASCII
Hope this helps.
Running Windows Server 2008R2 on Virtual. The images that are I requested to be applied are minimal. If I need to enable any server features I do that manually.
I'm also running Windows Server 2012 for my Tableau Server pilot environment. That too is an image that has no features applied.
I'm not tweaking anything in the registry. Servers adhere to GPO and have patches applied automatically from within our company. This is a very interesting topic and would love to hear what others are doing, too.