bind 9.3.0 performance problem on x86 Linux
brad at stop.mail-abuse.org
Mon Jan 10 16:07:13 UTC 2005
At 11:00 PM +0800 2005-01-10, yan, tommy (CSG-MKG-BJ) wrote:
> I suspect either the redhat kernel has a scalability
> problem, or SMP architecture has trouble handling mass
> dns requests.
Keep in mind that the Itanium architecture is better designed to
handle SMP, whereas the Intel x86 architecture has to work harder to
do that. There may be kernel support for the hardware architecture
to make better use of the features available, which could explain the
performance difference you're seeing.
Rick Jones (from HP) is the acknowledged master in this field,
but I've also done some benchmarking in this area myself (see
<http://www.shub-internet.org/brad/papers/dnscomparison/>), and your
numbers are about the highest I've ever seen for BIND 9. Indeed,
your numbers are the highest I've ever seen for any nameserver on any
platform (including Rick's testing of Nominum's CNS and my own
testing of NSD).
Can you share more details of your testing configuration with us?
Are you and Rick going to publish another white paper on nameserver
performance measurement on HP hardware?
Brad Knowles, <brad at stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin (1706-1790), reply of the Pennsylvania
Assembly to the Governor, November 11, 1755
SAGE member since 1995. See <http://www.sage.org/> for more info.
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