Squid patch

Hello, i would like to see included in the next squid release the zsh patch
from: http://www.it-academy.bg/zph/.


Purpose
The idea behind this patch is to allow classification of packets generated
from the squid cache engine towards clients. The classification is based on
whether the content is being served from cache (a cache HIT), or is being
retrieved from a remote server (a cache MISS).
Background
I made this patch to deal with a problem of the current QoS design I have
implemented. I'm using a single Linux box to act as Firewall/NAT/Transparent
HTTP cache for a small network of computers. The box also imposes the QoS
policies for the communications to/from Internet. The QoS is based on
HTB+SFQ queuing disciplines. Statistics gathered from the squid cache
(through SNMP) clearly show an average monthly HIT rate of about 25%.
Unfortunately, unless using the delay pools feature of SQUID, there is no
way to limit only those requests served from remote servers. The Delay pools
are a nice feature of SQUID, but cannot work efficiently due to the lack of
communication with the QoS policies beneath. What I needed was a way to
classify packets and set no penalty in bandwidth and delay, when the
information is served from SQUID's cache.







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