8133818: Additional number of processed references printed with -XX:+PrintReferenceGC after JDK-8047125
Summary: Test contributed by brutisso
Reviewed-by: tonyp, tschatzl
8134161: JVM is creating too many GC helper threads on T7/M7 linux/sparc platform
Summary: Recognize the T7/M7 platform.
Reviewed-by: dcubed, kvn, jmasa