tor 2003-04-03 klockan 14.20 skrev Carles Xavier Munyoz Bald�:
> On Thursday 03 April 2003 13:55, Henrik Nordstrom wrote:
> > But please note that in such case there is very limited benefit of using
> > a cache. The overhead of a conditional GET is the same as a plain GET,
> > and the biggest benefit of a cache is to be able to avoid this overhead
> > in latency time. This overhead is also a quite significant portion of
> > the bandwidth usage of HTTP.
>
> Yes, the same latency time, but less bandwidth usage.
> If, for example, I request a web page with lot of images, but all this images
> are present and upated in the Squid cache I will save lot of bandwidth with
> the remote server because the Squid will give them directly from its cache to
> my web browser.
Not a lot... it will need to do the verification of each image, which
means a HTTP request plus full response headers transferred over the
network. Only transfer of the actual image data is avoided.
In any case, see the refresh_pattern setting in squid.conf. It is fairly
well explained there on how to tune Squids idea of object freshness.
Regards
Henrik
-- Free Squid-users support provided by Henrik Nordstr�m <hno@squid-cache.org> PayPal donations welcome if you consider my Free Squid support helpful. If you need commercial Squid support or cost effective Squid and firewall appliances please refer to MARA Systems AB, Sweden http://www.marasystems.com/, [email protected]Received on Thu Apr 03 2003 - 05:57:02 MST
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