[squid-users] Re: RE : [squid-users] performances ... again

Is there more than one DNS servre in /etc/resolv.conf or squid.conf? If
so then you need to test both..

On fre, 2008-06-06 at 21:55 +0200, GARDAIS Ionel wrote:
> Okay ...
> It's been the hardest 20 minutes of the day : find a few domain names that "should" have not been accessed and cached by our DNS.
>
> Well, from Paris, France, time given by dig stats :
> - mana.pf (French Polynesia, other side of the Earth, satellite link) : around 700ms
> - aroundtheworld.com, astaluego.com, apple.is, dell.nl, Volvo.se : between 100 and 150ms
> - nintendo.co.jp, Yamaha.co.jp, pioneer.co.jp : around 300ms
>
> Cached entries are returned in less than 1ms.
>
> Ionel
>
>
> -----Message d'origine-----
> De : Henrik Nordstrom [mailto:henrik_at_henriknordstrom.net]
> Envoyé : vendredi 6 juin 2008 21:05
> À : GARDAIS Ionel
> Cc : Squid Users
> Objet : Re: [squid-users] performances ... again
>
> On fre, 2008-06-06 at 14:37 +0200, Ionel GARDAIS wrote:
> > I got a user (whom I can trust) who uses an explicit proxy configuration
> > : there are no improvments.
>
> Ok. Then it's at the proxy, or the DNS servers it uses.
>
> Remember that to diagnose DNS slowness you need to query for hosts and
> domains which has not yet been visited, as the DNS server also caches a
> lot. Lookups of already visited domains/hosts is not valid as proof to
> say that the DNS is fine..
>
> > I tried to avoid use of calls which cause DNS lookups (hence the
> > host.match() and host.indexOf() ).
>
> Good.
>
> Regards
> Henrik
Received on Fri Jun 06 2008 - 21:34:16 MDT