Basic bind capacity question

[Mike Toler]

Yes, I'm using a postgres DB backend.  Using a single instance of the
queryperf tool and a DB of ~120,000 entries, I'm getting 40 qps.

Michael

> -----Original Message-----
> From: Adam Tkac [mailto:atkac at redhat.com]
> Sent: Thursday, July 19, 2007 5:00 AM
> To: Mike Toler
> Cc: bind-users at isc.org
> Subject: Re: Basic bind capacity question
> 
> Mike Toler napsal(a):
> > I'm just trying to get some basic capacity ratings for my Bind 9.4
DNS
> > Server setup, and I think I must be doing something wrong.
> > No matter how many threads I have attempting to perform lookups
(even
> > spread across multiple machines) I'm seeing throughput of
approximately
> > 30 DNS lookups per second.  That seems ridiculously small to me.
> >
> > It also seems like I can only have around 5 simultaineous queries
(i.e.
> > if I spawn any more than 5 threads, the extra ones timeout).
> >
> > If I run one thread, I can get 30 DNS lookups per second.  If I run
2
> > threads, I get about 15. yada-yada.
> >
> > I can even spread the threads over multiple machines, and they still
> > only total up to about 30 lookups per second.
> >
> > My DNS server is a 4-CPU/1.6 ghz machine with about 16 gig of ram.
> >
> >
> > Michael Toler
> > System Test Engineer
> > Prodea Systems, Inc.
> > 214-278-1834 (office)
> > 972-816-7790 (mobile)
> >
> Interesting. How did you test it? I tested performance of bind 9.4 on
my
> local computer (only about 30 RRs) with queryperf utility (shipped
with
> bind in contrib subdirectory) about two weeks ago and result was about
> 12000 queries per second if I remember correctly (I have 2x 1,8 GHz
> machine). Are you using some database backend?
> 
> Adam



This message is confidential to Prodea Systems, Inc unless otherwise indicated 
or apparent from its nature. This message is directed to the intended recipient 
only, who may be readily determined by the sender of this message and its 
contents. If the reader of this message is not the intended recipient, or an 
employee or agent responsible for delivering this message to the intended 
recipient:(a)any dissemination or copying of this message is strictly 
prohibited; and(b)immediately notify the sender by return message and destroy 
any copies of this message in any form(electronic, paper or otherwise) that you 
have.The delivery of this message and its information is neither intended to be 
nor constitutes a disclosure or waiver of any trade secrets, intellectual 
property, attorney work product, or attorney-client communications. The 
authority of the individual sending this message to legally bind Prodea Systems  
is neither apparent nor implied,and must be independently verified.