void CompactingPermGenGen::initialize_performance_counters() {

  {- -------------------------------------------
  (1) (変数宣言など)
      ---------------------------------------- -}

      const char* gen_name = "perm";

  {- -------------------------------------------
  (1) フィールドの初期化
      ---------------------------------------- -}

      // Generation Counters - generation 2, 1 subspace
      _gen_counters = new GenerationCounters(gen_name, 2, 1, &_virtual_space);

      _space_counters = new CSpaceCounters(gen_name, 0,
                                           _virtual_space.reserved_size(),
                                          _the_space, _gen_counters);
    }