Re: Performance profiling

From: Edwin Culp <>
Date: Sat, 25 Oct 1997 10:46:59 -0500

Looks very interesting and informative. When do you plan to have a
for squid-1.1.17? We have a squidcito (small squid .-) cache
here in beautiful Veracruz averageing 6000 hits per hour only on the
loaded machine, but if you are interested we would be happy to
If our national telephone monopoly TELMEX doesn't begin to understand
we aren't competition and shut us down ( they'd like "up" better :-)
If anyone is interested it's at

Look forward to you answer and applying the patches to 1.1.17.


> Alex Rousskov <>
> Hi there,
> I have some nice performance measurements for Squid you may want
> to check out. I am very interested in your _participation_ as well as
> comments and ideas on what to add or change:
> All the stuff is based on a simple patch that measures
> _per request_ network and disk I/O activities. The results are quite
> interesting. The patch has even been able to detect a performance bug in
> Squid (that you probably want to fix, see the page for a cure :) ).
> The patch was run on two servers in the Netherlands (SURFNet: top
> level and leaf), two servers in Norway UNINETT (top level and leaf), and
> and more than a week on SV (NLANR, USA). The results include in-depth
> performance analizes of each proxy and side-by-side comparisons.
> The collection may be essential for those who plan to install or
> upgrade their proxies. You can actually see what kind of hit rates,
> delays, and bottlenecks one may get in different environments. It is also
> useful for performance enhancement of future versions of Squid.
> We do need to expand the collection though. If you like what you
> see, please consider participating in our experiment! All you need to do
> is to apply a patch and collect a day worth of logs. The patch does not
> increase your CPU load and such. I will take care of prompt processing of
> the results. I am especially interested in large leaf and top level
> proxies (I have none from Asia and Australia, for example)...
> I hope you will find this stuff useful and will participate.
> Thank you,
> Alex.
> P.S. This is a work-in-progress. Please pardon my bugs...
Received on Sat Oct 25 1997 - 09:05:08 MDT

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