Re: Cache Replacement Algorihtms

Eran Balter wrote:
>
> Hi,
>
> Does Squid has a data structure ment for placing Latency and BandWidth
> measured from origin servers, meaning: when there's a document request
> directly to the origin server, when the document is fetched:
> 1. Is there a field that measure the time till the first byte
> received?
> 2. Is there a field that measure the transfer time, by
> size(document)/time(fetch of document)?
> 3. Is there a data structure that saves those measures for each
> server?

Not really. All it measures is how long the complete request has taken.
No information is normally kept on the individual origin servers talked
to.

The request time measure does not tell exacly what you want, as it is
also dependent on the speed of the client for any largish request (>2
TCP windows or so).

--
Henrik Nordstrom
Squid hacker