Allocation: 5000 custom bytes, 0 mmapped bytes
                 sub: 5000 custom bytes, 0 mmapped bytes
               slice: 5000 custom bytes, 0 mmapped bytes
                  gc: 0 custom bytes, 0 mmapped bytes
       Unix.map_file: 0 custom bytes, 65536 mmapped bytes
                 sub: 0 custom bytes, 65536 mmapped bytes
               slice: 0 custom bytes, 65536 mmapped bytes
                  gc: 0 custom bytes, 0 mmapped bytes
    CAML_BA_EXTERNAL: 0 custom bytes, 0 mmapped bytes
                 sub: 0 custom bytes, 0 mmapped bytes
               slice: 0 custom bytes, 0 mmapped bytes
                  gc: 0 custom bytes, 0 mmapped bytes
       ba_alloc NULL: 5000 custom bytes, 0 mmapped bytes
                 sub: 5000 custom bytes, 0 mmapped bytes
               slice: 5000 custom bytes, 0 mmapped bytes
                  gc: 0 custom bytes, 0 mmapped bytes
     CAML_BA_MANAGED: 5000 custom bytes, 0 mmapped bytes
                 sub: 5000 custom bytes, 0 mmapped bytes
               slice: 5000 custom bytes, 0 mmapped bytes
                  gc: 0 custom bytes, 0 mmapped bytes