Efficient way of getting thread CPU time using JMX

Question

I\'m currently getting the total thread CPU time using JMX in the following manner:

private long calculateTotalThreadCpuTime(ThreadMXBean thread) {

    long         


        

Answer 1

Optimisations:

• invoke getThreadCPUTime inside a thread pool, since it seems to be network-bound;
• whenever a thread is found to be in Thread.STATE.TERMINATED, keep its name in a Map and skip querying the next time.