Is it possible that your DNS performance issue isn't a
cache issue? For example, does your system need to
invoke bind with -4?

John

On Sep 21, 2011, at 5:00 PM, TMK wrote:

I have couple of questions.

bind cache memory limit is 4GB. can I increase it. or this is hard- coded limit.

i'm running the x64 bit version.

also to increase the cache hit ratio I have created script to query my
dns for the top 1 million sites. would this give any performance
advantages or is it useless.

thx in advance
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