Relation memory usage to dumpfile of cache

[Barry Margolin]

In article <bj25lf$sj5$1 at sf1.isc.org>, Tom  <klout at gmx.net> wrote:
>I encountered extensive memory usage on one of our DNS, so I dumped
>the cache to file. The size of the file is about 20MB while the memory
>usage of named is about 230MB. is this normal? we're running bind
>9.2.2 on RH8.0 with 512MB Ram.

Sounds normal to me.  I think the in-memory cache is a hash table, and they
work best if they're sparsely populated.

-- 
Barry Margolin, barry.margolin at level3.com
Level(3), Woburn, MA
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