
the following options are available:

- region_offset=
- region_size=
- region_shift=

above 3 options are used for defining the regions.

- prof_shift=

sets the resolution of program counter.

- small_bound=

specifies the limit in bytes up to which memory allocations should be
classified as small allocations for profiling purposes. this limit must be
greater than zero but less than the medium and large bounds. default value:
32.

- medium_bound=

specifies the limit in bytes up to which memory allocations should be
classified as medium allocations for profiling purposes. this limit must be
greater than the small bound but less than the large bound. default value:
256.

- large_bound=

specifies the limit in bytes up to which memory allocations should be
classified as large allocations for profiling purposes. this limit must be
greater than the small and medium bounds. default value: 2048.

