Re: Poor performance bind9

Dirk Janssen <dirk@no.netspam.de> wrote:
> Hi,

> I've compiled in threads to bind9.3.0 (src from isc not ports) using a dual
> procssor machine (2xIntel XEON) with 5.3-STABLE and I encounter serious
> performance problems (using queryperf from bind contribs):

> ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++
> Parse input file: once
> Ended due to: reaching end of file

> Queries sent: 100000 queries
> Queries completed: 100000 queries
> Queries lost: 0 queries

> Percentage completed: 100.00%
> Percentage lost: 0.00%

> Started at: Wed Dec 8 12:54:37 2004
> Finished at: Wed Dec 8 12:57:58 2004
> Ran for: 201.589260 seconds

> Queries per second: 496.058173 qps
> ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++

> When I compile bind without threads, the result is realistic and nearly
> 30x better:

> ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++
> Parse input file: once
> Ended due to: reaching end of file

> Queries sent: 100000 queries
> Queries completed: 100000 queries
> Queries lost: 0 queries

> Percentage completed: 100.00%
> Percentage lost: 0.00%

> Started at: Wed Dec 8 12:50:51 2004
> Finished at: Wed Dec 8 12:50:59 2004
> Ran for: 7.819249 seconds

> Queries per second: 12788.951982 qps
> ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++

> Can anyone explain what's the problem here? Is this a issue of bind9 or of
> freebsd? Any suggestions how I can use the two processors of my box
> without running two (non multithreading) instances of bind listening on
> different IPs?

> Regards,

> Dirk

What is your compile and run options ?

I have :
CC = gcc -pthread
CFLAGS = -g -O2
LDFLAGS =
STD_CINCLUDES =
STD_CDEFINES = -D_THREAD_SAFE
STD_CWARNINGS = -W -Wall -Wmissing-prototypes -Wcast-qual -Wwrite-strings -Wformat

named -t /var/named -c /named.conf -u bind -n 2

using freebsd 4.7 with dual
CPU: Pentium III/Pentium III Xeon/Celeron (1266.25-MHz 686-class CPU)

Started at: Wed Dec 8 17:13:45 2004
Finished at: Wed Dec 8 17:13:48 2004
Ran for: 3.109145 seconds

Queries per second: 2701.707383 qps

(About 100MB zones in the server)




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