Re: [squid-users] Some basic Squid questions: mrtg, performance tuning ?

From: Henrik Nordstrom <>
Date: Fri, 20 Feb 2004 10:03:37 +0100 (CET)

On Fri, 20 Feb 2004, aiggno wrote:

> Hi all,
> When monitoring the Squid with mrtg, with cacheServerInKb&cacheServerOutKb
> variables, I got these output:
> Server traffic volume (In/Out):
> Max Traffic In 73.7 M b/min Average Traffic In 32.6 M b/min Current
> Traffic In 53.4 M b/min
> Max Traffic Out 4706.0 k b/min Average Traffic Out 1615.0 k b/min
> Current Traffic Out 2574.0 k b/min
> What does it mean ? How can the traffic to the cache in 73 Mb/minute while
> the traffic out is only about 5 Mb/minute ?

These two variables monitor the amount of traffic between Squid and the
origin (and peer) servers.

Your Squid is sending 5 Mb/minute of data out to origin servers (request
headers etc), and receiving 73 Mb/minute of data back.

If you want to monitor the amount of data sent by Squid to clients then
this is cacheHttpOutKb.

I usually plot these combinations:

   cacheServerInKb & cacheHttpOutKb

   cacheHttpInKb & cacheServerOutKb

This gives nice graphs of the traffic in both directions and the impact of
the cache.

Received on Fri Feb 20 2004 - 02:04:00 MST

This archive was generated by hypermail pre-2.1.9 : Mon Mar 01 2004 - 12:00:02 MST