| Debugging Tools for Windows |
The Disable heap coalesce on free flag leaves adjacent blocks of heap memory separate when they are freed.
| Abbreviation | dhc |
| Hexadecimal value | 0x00200000 |
| Symbolic Name | FLG_HEAP_DISABLE_COALESCING |
| Destination | System-wide registry entry, kernel flag, image file registry entry |
By default, Windows combines ("coalesces") newly-freed adjacent blocks into a single block. Combining the blocks takes time, but reduces fragmentation that might force the heap to allocate additional memory when it cannot find contiguous memory.
This flag is used to test optimizing strategies. It is not used for debugging.