Re: How is squid performing?

hillel@learn.co.za wrote:

> 1) Is there any tool to view how squid caching is performing?
> I have no Parent/Siblings and I'm using squid as a http accelerator.

For "real-time" graphs, MRTG is a good tool.

> 2) In my access.log, as you can see below, I'm getting the NONE variable,
> does this mean
> something to do with the object being cached?
>
> 0 62.60.13.57 TCP_MEM_HIT/200 1355 GET http://192.168.1.10/images/
> GCSECon4886Img937.gif - NONE/- image/gif
 
NONE in the hierarchy tag means Squid did not need to contact someone
else to solve the request.

> 3) Is there any software to tell, on average or even just for the most
> frequent objects cached, how long objects are being
> cached before they are replaced?
> As this will indicate if there are any problems with the expires headers in
> the ASP pages and the squid
> server won't be blamed it objects arn't cached.

Non exactly, but there is a good tool for checking if a object can be
cached or not, with descriptive comments. I never seem to remember the
URL but it has been posted on squid-users numerous times (last time
yesterday I think..). Should also be a link from www.squid-cache.org
somewhere.

--
Henrik Nordstrom
Squid hacker