Hi, running squid in transparent mode for our network, we're trying to maximised our byte cache hit ratio. Isn't everyone ;-) I've been looking over reports generated by SRG and I guess shouldn't be surprised to find that youtube/goodlevideo (when you add up the 250 different mirror servers) accounts for around 15% of our bandwidth usage (c. 28GB per day in c. 300 requests) and has a 0% hit rate. This seems worthy of some effort. So, I've been looking at these pages: http://wiki.squid-cache.org/ConfigExamples/DynamicContent/YouTube http://wiki.squid-cache.org/ConfigExamples/DynamicContent/YouTube/Discussion I gather I'd need to upgrade to squid 2.7 (for storeurl) which I can do. The remainder looks doable, if a little complex. Is there a big performance hit involved in spawning the perl script? I guess those ACLs will get hit relatively rarely so perhaps not? I guess the perl script needs to be modified every time google/youtube change subdomain names. Do I presume this doesn't happen too often? Does anyone else have any experience or advice on this? What sort of hit rate do you tend to get in practice? There's a lot of video on goodlevideo, but I guess certain videos tend to become highly popular for a few days. Many thanks in advance for any suggestions, Gavin
