20% higher CPU with Wildfly-OpenSSL

[jamieb22]

Our app receives and establishes a large amount of TLS connections per minute. I noticed that CPU utilization is about 20% higher with Wildfly-OpenSSL enabled as compared to standard JSSE activated (incidentally, in this environment, our app is running inside a virtual machine with 16 CPU cores assigned). I'm not entirely clear on why there would be such a huge difference. Tomorrow, I'll run in a profiler and see what's up.

Interestingly, no. packets and bytes transferred is significantly lower with Wildfly-OpenSSL enabled. At first I thought, that after installing Wildfly that some TLS connections where somehow being rejected, but alas I cannot not confirm this. Its baffling because I remain unconvinced that differences of this magnitude could be attributed to differences in implementation between OpenSSL and JSSE. Could it be difference in session handling option?

Comment?