Summary: Change checks for isHumongous() to continuesHumongous() as installing a code root for a humongous object is valid, but not for continuations of humongous objects. Cleaned up asserts.
Reviewed-by: jmasa, tamao

Reviewed-by: brutisso, tschatzl

8025441: G1: assert "assert(thread < _num_vtimes) failed: just checking" fails when G1ConcRefinementThreads > ParallelGCThreads
Summary: The initialization for the remembered set summary data structures used the wrong thread count, i.e. number of worker threads instead of number of refinement threads.
Reviewed-by: brutisso

Summary: Add memory consumption breakdown on a per region type in the G1 remembered set summary statistics. This simplifies remembered set memory consumption analysis.
Reviewed-by: brutisso

8020123: Test gc/g1/TestPrintRegionRememberedSetInfo.java fails with "test result: Error. No action after @build"
Summary: Remove the @build tag and replace it by a @run tag so that the test gets executed
Reviewed-by: brutisso, mgerdin

Summary: Fixed the output of G1SummarizeRSetStats: too small datatype for the number of concurrently processed cards, added concurrent remembered set thread time retrieval for Linux and Windows (BSD uses os::elapsedTime() now), and other cleanup. The information presented during VM operation is now relative to the previous output, not always cumulative if G1SummarizeRSetStatsPeriod > 0. At VM exit, the code prints a cumulative summary.
Reviewed-by: johnc, jwilhelm

8010738: G1: Output for full GCs with +PrintGCDetails should contain perm gen size/meta data change info
Summary: Include metaspace information (used, allocated, reserved) in the PrintGCDetails output for full GCs.
Reviewed-by: poonam, jmasa, brutisso

Summary: Improve the output of G1PrintRegionLivenessInfo by adding a per-region remembered set size information column
Reviewed-by: jwilhelm, johnc

Summary: Refactored shrink_by() to only use region counts and not byte sizes
Reviewed-by: johnc, tschatzl

Summary: Make sure max alignemnt is at least as large as min alignment
Reviewed-by: johnc, jmasa, tschatzl