unix - Testing slob.c using malloc() -

i have altered slob.c gathers stats on last 100 small list allocations. made necessary edits make sure slob being used.

i running test program calls malloc() 10,000 or 100,000 times on size of 20 bytes.

but slob test results after test program runs states average claimed size 140 bytes (when expecting @ least somewhere near 20 bytes).

what doing wrong, there way accurately test slob?

i pretty sure stat collecting accurate, have had few professors check out me. current test program:

int main() {     char * ;     int ;      for( = 0; < 1000000; i++)     {         = (char*) malloc(20*sizeof(char)) ;         if(a == null) printf("null\n") ;     }     //here print system call resulting stats memory claimed , free memory 

my original answer correct:

char * ; int ;  for( = 0; < 10000; i++) {     = (char*) malloc(20*sizeof(char)) ;     if(a == null) printf("null\n") ; } 

this simple code can used test how altered slob file allocates memory (considering gathering statistics within slob file).