Poor performance bind9

[Dirk Janssen]

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