DNS Performance Numbers

Mark Bucciarelli mark at gaiahost.coop
Wed Nov 22 09:00:47 PST 2006

On Wed, Nov 22, 2006 at 04:43:49PM +0100, O. Hartmann wrote:
> Mark Bucciarelli wrote:
> >
> > On Wed, Nov 22, 2006 at 11:52:47AM -0200, Marcelo Gardini do Amaral wrote:
> > >
> > > The results were discussed in the following threads:
> > >
> >
> > I see the speed differences are major, but don't have a good
> > idea of what 15,000 DNS queries per second means.  Is the
> > following interpretation correct?
> >
> Means: as I see the 'numbers', they roughly show the
> performance of an untuned TCP/IP stack and/or of the speed the
> kernel can handle the 'subject of being tested for'. 


> My purposes for the specific OS may be not very common and not that 
> specific to DNS. 

I'm going to build a DNS server in the next couple weeks, and the
difference between 6.1 and 4.11 in Marcelo's tests was dramatic.

Are you saying Marcelo's test results do not apply to my


> i did and do not care about 10% or 15% of > performance gain or
> drainage if I could stay with the familiar OS 

I agree 100% with this idea, and that is why I am trying to get a
better gut sense if this performance difference really matters
for my application (web and email servers).



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