ios - Do multi-dimensional arrays eat memory and how do I free up their memory -

i have complex tableview. objective c

to populate number of labels in each cell had multi-dimension table composed of 2 nsmutablearrays (1 embedded inside other). result array had 3 columns per row.

to free memory used [arrayname removeallobjects];

well can did absolutely nothing.

this array (which per row holding 130 chars of data , in sample data had 30 rows) virus that's favourite food memory. ate chunks of 50mg there no tomorrow.

the removeallobjects did nothing recover memory.

i have searched high , low , find no clear way free memory when working nsmutablearrays , seems multi-dimensional ones cookie monsters.

in end removed multi-dimensional array , built single nsmutablearray of data concatenated string, substringed out 3 pieces of data when needed them.

memory returned normal.

this may not have been ideal solution. has found clear way of releasing memory of nsmutablearrays ?

it if knew language using. if you're writing in c, call

free(<array pointer>);