DNS Performance Numbers

Dave kreios at gmail.com
Tue Oct 31 04:35:31 UTC 2006

On Oct 30, 2006, at 1:27 PM, Marcelo Gardini do Amaral wrote:

> Dave, could you please describe you test set?

All the hardware is the same.  Queryperf was run on a FreeBSD 6.1
box.  Both boxes are connected through a Cisco switch.  All connections
are gig, full duplex.  Test was done with changing the OS on the
DNS server box.  Zone data is a small zone of 256 hosts.  queryperf
command is:

   queryperf -s dnstest -d small.dat -q 40 -l 60

> I've posted some results months ago and they were kind different.
> I have done some tests [1] [2] with bind and queryperf and my result
> on FreeBSD 6.1 was very poor if compared with 4.11.
> Besides this, I have had bad results with NSD + 6.1 too and it doesn't
> use threads. Because of that I realized that there is something
> strange with UDP traffic on 6.1, as it was discussed in the threads
> below.
> [1]
> http://lists.freebsd.org/pipermail/freebsd-stable/2006-September/ 
> 028247.html
> [2]
> http://lists.freebsd.org/pipermail/freebsd-net/2006-September/ 
> 011767.html

I am still in the mist of testing but re-reading your posts, I
figured I would try a few tests with linux as the queryperf host.
A task on the list but which I haven't gotten to yet.  The results
are interesting.  I would also take them with a grain of salt.  This
was done very quickly to see what initial numbers would pop out.
Version of FreeBSD is 6.1.  named was compiled with threads and
using libthr.  Polling was not enabled.

   query OS   named OS      qps
   FreeBSD    FreeBSD       38442
   Linux      FreeBSD       22211
   Linux      Linux         53225

FreeBSD 4.11 is not easily installed on these boxes and currently
means that I have to physically touch them so I do not know when I
will have time to try it out as a query host.


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