Subj : Re: Heap contention/BC5.02 crt
To   : borland.public.cpp.borlandcpp
From : Bob Gonder
Date : Thu Nov 18 2004 10:38 am

Björn Lantz wrote:

>I have identified a performance issue for my application that spawns of lot
>of threads that make tons of malloc/free. 

>My question is if there is a free alternative, or maybe some addition to the
>BC5.02 runtime libs that has a SMP-optimized heap manager or maybe a way to
>set local heaps per thread within a process?

Do you really need to malloc the space?
Could you instead use local variables?
For instance, if you need a variable sized array, but know that the
size will never be larger than N, then you could just have a  local
array of  the maximum size , and use a sub-portion of it.

Each thread gets it's own stack. You can set the stack size to
whatever you need (within reason, say 1-2 MB) (At least, in Win32, not
sure about Win16)

.