Memory used by caching name server?

[Rob]

Hi,

This is on FreeBSD 4-Stable.

I have set up a caching name server. About its cached data base,
I found out:

   1) data base is kept in memory

   2) the maximum memory is adjustable in named.conf, for example:
         datasize 20M;

But without specifying the datasize, how much memory is used by
default. The named.conf man page is rather cryptic:

    datasize
        The maximum amount of data memory the server may use.
        The default value is default.


Elsewhere, I found that this "default" means a system dependent value.

In any case, how can I find out what is the memory used by my server
on my system? Is there a 'ndc <arg>' command for this?
This is important when I consider to increase the memory limit.

Thanks,
Rob.