It looks like are reading documentation for 1.x versions of Web
Polygraph. The experiment configuration has changed a lot since then. We
now use PGL configuration files to describe the workload. See examples
in the "workloads" directory of your Polygraph distribution.
To answer your specific questions, you can use the working_set_length()
PGL function to "freeze" working set size after a given period of time.
For details, see PolMix-2 discussion at
You can simulate cachable miss-only stream with PGL. However you cannot,
at the moment, repeat the experiment with exactly the same sequence of
URLs. The models became too complex and nobody asked for that feature so
it got deleted from Polygraph. What exactly are you trying to achieve
with that test? Perhaps we can think of a workaround...
On Wed, 8 Mar 2000, Mike Boiko wrote:
> We have a couple quick questions. We are using Web
> Polygraph (ver 2.2.9) to test our web caching service.
> How does one create a “cacheable miss-only”
> reproducible test?
> We experimented with the –world_id and -- rep_cachable
> switches, but we get an “unknown option” error.
> Likewise, we would like to be able to control the
> number of unique objects in the simulated world, but
> noticed –world_cap has been removed. Is there another
> way to do this?
> Michael Boiko
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