There was a redhat sponsored benchmark released 3-4 years ago, should however note that J9 was developed by IBM, which owns the Power architecture and this test was run on Intel.
Disclaimer: I work on the IBM J9 JIT + OMR compiler team, so I am in no way a neutral authority, nor do I speak for my employer.
'Even' on Intel, we go back and forth on benchmarks, depending on what each side is focusing on. Some metrics take longer than others to flip-flop but both sides have some very smart people constantly working to make performance better.
And FWIW, we have a team dedicated to making x86 perform well.
Two things to consider about this particular result:
1) This is running on what I expect to be our pxa6470sr4-20130207_01 release (if I'm interpreting the 'java-x86_64-70-4' correctly). There has been a ton of work on J9 since then, and I would be very leery of using that result as canonical for 2017
2) SPEC jbb2013 was retracted due to a flaw: https://www.spec.org/jbb2013/defectnotice.html . I don't know what the implications of that flaw would be on these benchmark results (if any) but I would want more data before concluding anything.
That said, the 'other side' does do some really good work, and does score wins. We work hard to do the same. Even on Intel ;)
http://www.principledtechnologies.com/Red%20Hat/RHEL6_rhj_06...