Yes, I believe the kqueue version of squid would show much better
results. Unfortunately it fails to compile and I have yet the time to
try mucking with it more. I'll get back to the list when I am able to
get it up and running...
jeff
Mohan Srinivasan wrote:
Following up to a mail from Jeff Behl and Sean Chittenden back in Dec.
http://lists.freebsd.org/pipermail/freebsd-net/2004-December/006074.html
From your description, it looks like moving a kqueue based Squid will
help considerably (it looks like there is a version of Squid that
is kqueue based - not sure how stable that is though). If you drop a quick
kernel profile, you will see most of the system CPU being spent in select()
caused polling of descriptors. In my previous experience with a Squid-based
proxy several years ago, once you dropped more than a couple of hundred
connections into select(), CPU utilization spiked sharply because of
the descriptor polling.
We then hoisted Squid on top of a (homebrew) version of kqueue, which
caused system CPU to drop dramatically, because all the descriptor polling
was avoided.
mohan
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