Oracle WebCenter Perfomance Analysis and Tuning Tech Paper Published

I have a series of technical paper on Oracle WebCenter Spaces Performance Analysis and Tuning in Practice published at OTN:

Part 1:
http://www.oracle.com/technetwork/articles/enterprise2/zheng-webcenter-perf-1-1927402.html

Part 2:
http://www.oracle.com/technetwork/articles/enterprise2/zheng-webcenter-perf-2-1927421.html