I executed mod_cluster performance tests with JWS 3.0.2 GA, JBCS 2.4.23-ER2 and undertow EAP 7.0.0 with the undermentioned overall result. All results are from
same machine.

JWS 3.0.2

CPU Load

• X axis – iteration
• Y axis – load
  

JBCS 2.4.23-ER2

CPU Load

• X axis – iteration
• Y axis – load
  

EAP 7.0.0

CPU Load

• X axis – iteration
• Y axis – load