This time, we pass the 1 parameter, asking it to display malloc(3) statistics as well (achieved using the malloc_stats(3) API):
$ ./malloc_brk_test 1 init_brk = 0x184e000 #: malloc( n) = heap_ptr cur_brk delta [cur_brk-init_brk] 0: malloc( 8) = 0x184e670 0x186f000 [135168]Arena 0:system bytes = 135168in use bytes = 1664Total (incl. mmap):system bytes = 135168in use bytes = 1664max mmap regions = 0max mmap bytes = 0 1: malloc( 4083) = 0x184e690 0x186f000 [135168]Arena 0:system bytes = 135168in use bytes = 5760Total (incl. mmap):system bytes = 135168in use bytes = 5760max mmap regions = 0max mmap bytes = 0 2: malloc( 3) = 0x184f690 0x186f000 [135168]Arena 0:system bytes = 135168in use bytes = 5792Total ...
