RFR(XS): 8064471: Port 8013895: G1: G1SummarizeRSetStats output on Linux needs improvement to AIX

[Haug, Gunter]

Hi All,

The change '8013895:  (G1: G1SummarizeRSetStats output on Linux needs improvement)' makes use of getrusage() to retrieve accurate per-thread data on resource usage. We can use exactly the same code on AIX to achieve this.

Please review the following change:

http://cr.openjdk.java.net/~goetz/webrevs/8064471-aixTime/webrev.00/
https://bugs.openjdk.java.net/browse/JDK-8064471

Thanks,
Gunter