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

Can you talk more about how you're planning on using this information? You can get thread CPU times using a JVMTI based agent, which should perform slightly better than JMX. How have you measured the overhead of the JMX approach that lead you to the conclusion of 'dreadful' performance?