Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- a/src/share/vm/gc_implementation/g1/heapRegion.hpp	Wed Jan 18 09:50:16 2012 -0800
     1.2 +++ b/src/share/vm/gc_implementation/g1/heapRegion.hpp	Wed Feb 15 13:06:53 2012 -0500
     1.3 @@ -415,6 +415,16 @@
     1.4      return used_at_mark_start_bytes - marked_bytes();
     1.5    }
     1.6  
     1.7 +  // Return the amount of bytes we'll reclaim if we collect this
     1.8 +  // region. This includes not only the known garbage bytes in the
     1.9 +  // region but also any unallocated space in it, i.e., [top, end),
    1.10 +  // since it will also be reclaimed if we collect the region.
    1.11 +  size_t reclaimable_bytes() {
    1.12 +    size_t known_live_bytes = live_bytes();
    1.13 +    assert(known_live_bytes <= capacity(), "sanity");
    1.14 +    return capacity() - known_live_bytes;
    1.15 +  }
    1.16 +
    1.17    // An upper bound on the number of live bytes in the region.
    1.18    size_t max_live_bytes() { return used() - garbage_bytes(); }
    1.19  
    1.20 @@ -648,10 +658,8 @@
    1.21      init_top_at_mark_start();
    1.22    }
    1.23  
    1.24 -  // <PREDICTION>
    1.25    void calc_gc_efficiency(void);
    1.26    double gc_efficiency() { return _gc_efficiency;}
    1.27 -  // </PREDICTION>
    1.28  
    1.29    bool is_young() const     { return _young_type != NotYoung; }
    1.30    bool is_survivor() const  { return _young_type == Survivor; }