Re: [squid-users] site slow in loading

From: Brett Lymn <brett.lymn_at_baesystems.com>
Date: Thu, 27 Oct 2011 15:28:49 +1030

On Thu, Oct 27, 2011 at 02:48:48PM +1300, Amos Jeffries wrote:
> >
> >1) the site seems to be much more responsive with squid 2.5 stable 6
> >2) the site seems to be much more responsive if I add the IP
> >addresses
> >for site servers into /etc/hosts.
>
> I'm still very suspicious that it is making use of HTTP/1.1 features
> badly. The difference between 2.x and 3.1 is that 2.x advertise HTTP/1.0
> to the server and passes the result back as HTTP/1.0 to the browser. But
> 3.1 advertises HTTP/1.1 abilities to the server and passes it back to
> the client browser with HTTP/1.0, most features are passed straight
> through, but some are down-mapped to HTTP/1.0 (chunked encoding and
> 100-continue responses are stripped).
>

OK - but does that explain point 2? The difference between no hosts
entry and a hosts entry is very dramatic.

>
> Can you get a full traffic trace of the requests and responses headers
> going through both the fast and slow versions of Squid? You may have to
> collect at both before and after Squid to notice anything different.
>

OK, I will run some packet captures - mind you, given the nature of the
site I won't be handing them about too freely ;)

-- 
Brett Lymn
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Received on Thu Oct 27 2011 - 04:59:01 MDT

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