memory footprint

[Farid Hamjavar]

hello

bind 8.2.2-p7 on aix 4.3.3 w/256 MB RAM 

The named process has been up for 2 days, 3  hours  and
the  size  of  memory  it  is  using is 41MB and slowly
growing which I think is normal.  Is  it  effective  to
reduce  the memory foot print via reducing the 'minimum
ttl' from currently 8 hour to 1 hour?  What  are  other
methods  to  clean  out named's stuff in memory?   [not
via killing the named] 


Thanks, Farid