If we use MALLOC_MEMORY_HOLD=1 programs heaps will go very fast, I mean within minutes they will have consume the 
maximum process memory space.  There is no memory leak, apparently it`s memory fragmentation other with 
MALLOC_MEMORY_HOLD=0 the problem would show up.

So far I don`t understand why this is happening, in a nut shell we`ve taken existing C program, replace their malloc 
with new or std::vector<>.

Has anyone got any idea what is going on or how I might fiddle with some MALLOC_* options to fix this.  In the mean time
 i will try to create a program to reproduces the problem.