How to avoid unexpected memory allocation

Hi all
I just write a small MemoryHook library with c++ and use as preload.But
every time I start running, there is a big memory allocation,the size is
72704.I try to find all related library in ldd  list, but no size is 72704.
The usage is like this:
    LD_PRELOAD=./libPreload.so ./XXX

My initialize code:
*    static void TraceInitialize()*


























*    {#ifdef _DEBUG        fprintf( stderr, "call TraceInitialize\n" );
 #endif        pthread_mutex_lock( &s_mutexInit );        if ( s_status ==
TS_INITIALIZED ) { pthread_mutex_unlock( &s_mutexInit ); return; }
s_status = TS_INITIALIZING;        MemoryManager::initialize();
  s_pRealMalloc       = (FUNC_MALLOC)dlsym(RTLD_NEXT, "malloc");
s_pRealCalloc       = (FUNC_CALLOC)dlsym(RTLD_NEXT, "calloc");
s_pRealRealloc      = (FUNC_REALLOC)dlsym(RTLD_NEXT, "realloc");
s_pRealMemalign     = (FUNC_MEMALIGN)dlsym(RTLD_NEXT, "memalign");
s_pRealValloc       = (FUNC_VALLOC)dlsym(RTLD_NEXT, "valloc");
s_pRealFree         = (FUNC_FREE)dlsym(RTLD_NEXT, "free");        assert(
!( NULL == s_pRealMalloc || NULL == s_pRealCalloc || NULL == s_pRealRealloc
||                     NULL == s_pRealMemalign || NULL == s_pRealValloc ||
NULL == s_pRealFree ) );               s_status = TS_INITIALIZED;       //
printMap();               pthread_mutex_unlock( &s_mutexInit );    }*

and trace malloc call:
*     static int s_no_hook = 0;*









*     void* TraceMalloc( size_t size )     {            if ( s_status ==
TS_INITIALIZING ) return mockMemory::_mockMalloc( size );          if (
s_status != TS_INITIALIZED )  TraceInitialize();          void* p =
_impMalloc( size, __sync_fetch_and_add( &s_no_hook, 1 ) );
__sync_fetch_and_sub( &s_no_hook, 1 );          return p;      }*

And there is an additional problem that can't count the memory release of
static global variables.I can't find a suitable time to do this,even with
__attribute__ ((destructor(101))).

How can I fix these two bugs?

Complete code link:
          https://github.com/ddkv587/MemoryHook

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