Varnishstat

[Guillaume Quintard]

Hi there, just to be clear: you'd want Varnish to hold the history of
counter values in memory for you, right?

It's not going to happen, simply because it's not Varnish role to do this,
but rather a monitoring solution's. What varnish/varnishstat will give you
is a snapshot of the counters, at the time you ask for them. So, if you
want to get a value over a period, you'll need to ask for the values at the
beginning and end of the period and do the subtraction.

However, various tools can help you with that, for example collectd (
https://collectd.org/) works pretty well. I'm sure people on this list will
have their own recommandations.

Cheers

-- 
Guillaume Quintard
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