Varnish Cache comes with a set of parameters that affects behaviour and
performance. Most of these parameters can be set on the Varnish
command line (through varnishadm) using the
Some parameters can, for security purposes be read only using the ‘-r’ command line switch to varnishd.
We don’t recommend that you tweak parameters unless you’re sure of what you’re doing. We’ve worked hard to make the defaults sane and Varnish should be able to handle most workloads with the default settings.
For a complete listing of all the parameters and a short descriptions
param.show in the CLI. To inspect a certain parameter and get
a somewhat longer description on what it does and what the default is
param.show and the name of the parameter, like this:
varnish> param.show shortlived 200 shortlived 10.000000 [s] Default is 10.0 Objects created with TTL shorter than this are always put in transient storage.