Poor performance bind9
Dirk Janssen
dirk at no.netspam.de
Wed Dec 8 14:02:52 UTC 2004
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
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