Contribution: Lock Contention Profiler for HotSpot
adinn at redhat.com
Fri Nov 4 11:14:50 UTC 2016
On 04/11/16 10:00, Peter Hofer wrote:
> Hello everyone,
> we are researchers at the University of Linz and have worked on a lock
> contention profiler that is built into HotSpot. We would like to
> contribute this work to the OpenJDK community.
> . . .
This sounds very interesting.
> We described our profiler in more detail in a research paper at ICPE
> 2016.  In our evaluation, we found that the overhead is typically
> below 10% for common multi-threaded Java benchmarks. Please find a free
> download of the paper on our website:
Have you measured the overhead this change produces when running with
contention detection disabled? (i.e. do we pay to have this feature even
when we don't use it).
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