Re: Finding out minimal allocation unit

[Markus E Leypold <development-2006-8ecbb5cc8aREMOVETHIS@ANDTHATm-e-leypold.de>]

Stefan Bellon <sbellon@sbellon.de> writes:

> Martin Krischik wrote:
>
>> So I believe the OP wanted to know how to find out how much memory
>> for "new"ed object is allocated in total in order to know if extra 
>> optimisation is needed.
>
> Exactly. :-)


I'm only guessing, but here is my approach for GNAT: GNAT is AFAIK
linked against libc (at least on Unix). On linux that is glibc, which
provides methods to catch/trace malloc() requests. My suggestion is
that you do that and look which sizes are actually requested from
malloc(). 

Another option: Allocate objects in a loop and observe when sbrk()
occurs.

Regards -- Markus