RFR (S): JDK-8027428: Different conditions for printing taskqueue statistics for parallel gc, parNew and G1

[Sangheon Kim]

Hi all,

can I have reviews for the following small change to print taskqueue 
statistics
for parallel gc, parNew and G1?
Main changes are:
1) printing by 'ParallelGCVerbose' flag, not 'PrintGCDetails && 
ParallelGCVerbose'.
2) printing logs via 'gclog_or_tty', not 'tty'.
3) adding 'totals' row to sums up.

CR:
https://bugs.openjdk.java.net/browse/JDK-8027428

Webrev:
http://cr.openjdk.java.net/~jwilhelm/8027428/

Testing: jprt

Thanks,
Sangheon