review(S): 7037939: NUMA: Disable adaptive resizing if SHM large pages are used

[Igor Veresov]

The fix has two parts:
1. On Solaris, when ISM shared memory is used it is always allocated 
round-robin across the nodes, so the NUMA allocator cannot work. The fix 
is to disable UseNUMA if ISM method is selected. I let UseNUMA win 
however if UseLargePages and UseSHM are not explicitly specified.

2. On Linux, it's impossible to use adaptive resizing with UseNUMA if 
SHM shared memory is used. That is because we cannot uncommit a page in 
such a mmaping. The solution is to disable adaptive resizing if the 
userr really wants it, that is when UseNUMA and (UseLargePages or 
UseSHM) are specified on the command line. Like on Solaris, I let 
UseNUMA win if it's explicitly specified and UseLargePages and UseSHM 
are not.


Webrev: http://cr.openjdk.java.net/~iveresov/7037939/webrev.00/


Thanks,
igor