The code runs the Dacapo benchmark suite with minimal overhead when enabled and is stable
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BigRamTester (I ran a slightly modified version of https://bugs.openjdk.java.net/secure/attachment/58010/BigRamTester.java) and got 0% overhead as well.
10-05-2018
The Dacapo runs passed with the latest webrev. It passed with the events turned off and showed a 0% overhead.