Module: Heapviz::Config

Included in:

Heap

Defined in:

lib/heapviz/config.rb

Constant Summary

SIZEOF_PAGE_HEADER =

Fiddle::SIZEOF_VOIDP

SIZEOF_RVALUE =

GC::INTERNAL_CONSTANTS[:RVALUE_SIZE]

HEAP_PAGE_ALIGN_LOG =

16

HEAP_PAGE_ALIGN =

2 ^ 14 (or 16 on MacOS)

1 << HEAP_PAGE_ALIGN_LOG

HEAP_PAGE_ALIGN_MASK =

Mask for getting page address

~(~0 << HEAP_PAGE_ALIGN_LOG)  # Mask for getting page address

HEAP_PAGE_SIZE =

Actual page size

HEAP_PAGE_ALIGN

HEAP_PAGE_OBJ_LIMIT =

(HEAP_PAGE_SIZE - SIZEOF_PAGE_HEADER) / SIZEOF_RVALUE