Doug, hmmm.. 75%-85% seems too large because the host runs email application in addition to cache-and-forward-only BIND (for better local caching). So, I was wondering if there are any best/proven practice/recommendations for such shared application hosts ?
The default value is 32MB. We have 8GB RAM. I don't know if its better to start with 1GB (1/8th of RAM)? thanks blr On Thu, May 31, 2012 at 8:17 PM, Michael Graff <mgr...@isc.org> wrote: > Hmm, I don't quite think this is a good idea. BIND 9 (since 9.5) manages > memory quite well, but it will happily consume all you have and go into > swap. > > I'd set it high enough (on a dedicated machine) to use plenty of RAM, but > low enough to not cause other OS components to swap out or BIND itself to > swap. 75% or 85% range seems like a good starting point. > > --Michael > > On May 31, 2012, at 8:18 PM, Doug Barton wrote: > > > On 5/31/2012 1:51 PM, blrmaani wrote: > > > >> Question: > >> what is the recommended configuration for 'max-cache-size' for optimum > >> usage ? > > > > You should not restrict the size of the cache at all if you want the > > best performance. BIND will use as much memory as it needs in order to > > satisfy the requests of your users. > > > > > > -- > > If you're never wrong, you're not trying hard enough > > _______________________________________________ > > Please visit https://lists.isc.org/mailman/listinfo/bind-users to > unsubscribe from this list > > > > bind-users mailing list > > bind-users@lists.isc.org > > https://lists.isc.org/mailman/listinfo/bind-users > >
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