The goal is to prevent excesive memory allocation/freeing in our test run.

It can not be as definite as PS/SP memory leak detection, so should allow tuning.

Initial idea is to intercept (wrap) malloc/free calls and analyze them (number, malloc/free ratio, may be comparing to memroot allocations).

Problematic patterns could be found with help of GNOME Sysprof and profiler of tcmalloc (something else?)