[fpc-devel] Compiler bottlenecks]

Michael Van Canneyt michael at freepascal.org
Thu Jul 15 09:26:05 CEST 2010

On Thu, 15 Jul 2010, Florian Klaempfl wrote:

> Jonas Maebe schrieb:
>> Unless you are doing a cold compile, the main bottlenecks in the
>> compiler are the memory manager (mostly the allocation of memory,
>> freeing is faster), zero-filling new class instances (and partially
>> resetting the register allocator) and tobject.initinstance.
> I wonder if zeroing memory blocks (so when allocating them we know
> already that they contain zeros) and preparing new register allocators
> in a helper thread could improve this.

But if a memory block is freed and put back on the heap, 
you need to zero it again, so where is the gain in that ?


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