8170888: [linux] Experimental support for cgroup memory limits in container (ie Docker) environments
Summary: Set apparent physical memory to cgroup memory limit when UseCGroupMemoryLimitForHeap is true
Reviewed-by: acorn, gtriantafill
Contributed-by: NChristine Flood <chf@redhat.com>

Reviewed-by: dcubed, sspitsyn, gtriantafill

Summary: Use the initial active processor count for memory initialization instead of the current active one.
Reviewed-by: dholmes, mgerdin

Summary: Introduce and initialize active_processor_count variable in VM.
Reviewed-by: dholmes, jprovino

Summary: Store additional information in PhiNodes corresponding to known instance field values to avoid incorrect reusage.
Reviewed-by: kvn, thartmann

Summary: Add missing cache_line_size > 0 checks.
Reviewed-by: kvn

Summary: extract processor count from sched_getaffinity mask
Reviewed-by: dholmes, gthornbr

Reviewed-by: kevinw, vlivanov

Reviewed-by: hseigel