Re: about dwAllocationGranularity of SYSTEM_INFO

Hello everyone,

I read the description of dwAllocationGranularity from,

1.http://msdn2.microsoft.com/en-us/library/ms724958.aspx

2.http://msdn2.microsoft.com/en-us/library/aa366887(VS.85).aspx

and tested on my system it is 65535.

But from the above description, I do not quite understand what does it
mean. Does it mean that when memory manager deals with real memory
allocation, it will always allocate 65535 bytes at a time, and divide
into small chunks to upper level API (for example, when we new[256],
it will allocate 256 bytes from the 65535 allocated raw bytes to
application)?

Another question is, what benefit will we get if we know this
parameter? For example, how do we allocate memory will utilize the
system at most to achieve best performance?

thanks in advance,
George