[Valgrind-users] Question :: Massif Tool

[Yogi S <inf...@gm...>]

Hi,
i am a novice. when I capture the snapshots using massif tool following are
the attributes seen in the snapshot.

time=5325473651
mem_heap_B=232194935
mem_heap_extra_B=1038185
mem_stacks_B=0
heap_tree=peak

If I understand correctly time would refer to the time in nano seconds (*may
be some other units*)
But what are the mem_heap_B , mem_heap_extra_B and mem_stacks_B and
heap_tree.

I tried searching for suitable article online on this could not get one.
can you help me with the same?

Regards
Yogi