named taking up 100% resource on only 1 cpu on a multi cpu system

David Botham dns at botham.net
Fri Jan 10 18:47:54 UTC 2003


I think that BIND 9 is muti-threaded and will use multiple procs.

Also, if your CPU is idle 80% of the time, is that to say that it is 0%
utilized 80% of the time and 100% utilized 20% of the time, or, is it
20% utilized 100% of the time?  Either way, try BIND 9.

Dave...

> -----Original Message-----
> From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On
> Behalf Of Elias
> Sent: Thursday, January 09, 2003 10:50 PM
> To: comp-protocols-dns-bind at moderators.isc.org
> Subject: named taking up 100% resource on only 1 cpu on a multi cpu
system
> 
> 
> 
> -- Attached file included as plaintext by Ecartis --
> 
> Hi guys,
> 
> Every now and then my DNS server would stop responding to DNS queries.
> Either it stops completely or the replies would take a very long time.
I'm
> running Bind 8.3.4 on an E3000 SUN server with 1.5 GB of memory and 4
> CPUs. During the time that my server goes 'dead', CPU utilization is
like
> 70% idle but upon checking further, I find that 1 CPU will constantly
be
> 100% utilized while the 3 other CPUs would be idling more than 80% of
the
> time. Is there a way to make named take advantage of my multiple CPU
> system? If there isn't, is there a way to run 3 instances of named and
let
> each instance run dedicated on a separate CPU so that the system would
be
> fully utilized? Anybody got a clever solution for my problem? Any help
is
> greatly appreciated. Thank you.....
> 
> 
> - Elias -
> 
> 
> 
> -- Attached file included as plaintext by Ecartis --
> 
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> 
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