Merge

8025996: Track metaspace usage when metaspace is expanded Reviewed-by: coleenp, ehelin

8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces Reviewed-by: brutisso, jmasa, coleenp

8003420: NPG: make new GC root for pd_set Summary: Move protection domain oops from system dictionary entries into a seperate set; the system dictionary references entries in that set now. This allows fast iteration during non-classunloading garbage collection. Implementation based on initial prototype from Ioi Lam (iklam). Reviewed-by: coleenp, iklam

8010506: Typos and errors in descriptions of vm options in globals.hpp Summary: Fix typos and errors in descriptions of vm options in globals.hpp Reviewed-by: jmasa, jwilhelm

8014555: G1: Memory ordering problem with Conc refinement and card marking Summary: Add a StoreLoad barrier in the G1 post-barrier to fix a race with concurrent refinement. Also-reviewed-by: martin.doerr@sap.com Reviewed-by: iveresov, tschatzl, brutisso, roland, kvn

8025526: VirtualSpace should support per-instance disabling of large pages Summary: Add a new initialization function to VirtualSpace which allows the caller to override the max commit granularity. Reviewed-by: stefank, ehelin, tschatzl

Merge

8024838: Significant slowdown due to transparent huge pages Summary: Don't turn on transparent huge pages (-XX:+UseTransparentHugePages) unless explicitly specified on the command line. This has the effect that large pages are never turned on Linux unless the user has explicitly enabled any of the large pages flags: -XX:+UseLargePages, -XX:+UseTransparentHugePages, -XX:+UseHugeTLBFS, and -XX:+UseSHM. Reviewed-by: jwilhelm, tschatzl, brutisso

8025854: Use "young gen" instead of "eden" Summary: Changed a few descriptions and variable names to young gen. Reviewed-by: tschatzl, jcoomes