RFR (M) 8201655: Add thread-enabled support for the Heap Sampling
jcbeyler at google.com
Fri Oct 26 17:48:14 UTC 2018
When working on the heap sampling, I had promised to do the per thread
event so here it is!
Could I get a review for this:
I was thinking of adding GC-dev for the memAllocator change once I get
favorable reviews for the rest of the change.
I've done a bit of performance testing and on the Dacapo benchmark I see no
change in performance when turned off (logical, any code change is behind a
flag check already in place) and when turned on it is comparable to the
(More information is: I see a very slight degradation if we are doing 512k
sampling but no degradation at 2MB).
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