Wednesday, May 16, 2012

how can you measure the time spent in a context switch under java platform

Let's assume each thread is doing some FP calculation, I am interested in

  • how much time the CPU is used in switching threads instead of running them

  • how much synchronization traffic is created on shared memory bus - when threads share data, they must use synchronization mechanism

My question: how to design a test program to get this data?

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