ZK and JSF based framework are both popular Java based web frameworks. We constantly have evaluators and potential users asking us about the comparative performance of the two. Below is a quick reference on the performance of ZK vs JSF based solutions. The performance report provides the test result and relative performance metrics of ZK and JSF based solutions.
ZK performance is much faster than JSF based solutions in terms of average server response time for both CE and EE. ZK EE in particular is up to 42 times faster than that of the tested JSF based solutions with 500 concurrent users. Regarding memory consumption, ZK uses slightly more memory than the JSF based framework by approximately 1.2-1.6 times.