Re: Changing request rate (via multiple robots?)

From: Alex Rousskov (rousskov@ircache.net)
Date: Thu Jun 15 2000 - 14:30:51 MDT

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In reply to: Richard Stern: "Changing request rate (via multiple robots?)"
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On Thu, 15 Jun 2000, Richard Stern wrote:

> I would like to know how to change the polymix-2.pg file
> to change my request rate. The comment in the supplied file
> instructs one to change the # of robots.
>
> Am I right in assuming that this is accomplished simply by adding
> more elements to the rbt_ips array, simply repeating each element
> with the same IP address in there now?

Adding more elements will indeed create more robots and will increase
request rate. However, you will not follow PolyMix-2 IP allocation rules
if you use this method.

To do it right, you have to create real (different) IP addresses, one
per robot. IP aliases are usually the best way to go. See
http://bakeoff.ircache.net/N02/howto.txt
for help with IP addresses for PolyMix-2 (sections 3 and 4).

> Am I also correct in assuming that this change is only needed on
> the polymix-2.pg file used by polyclt, and not by polysrv?

While not a requirement for PolyMix-2, it is much better to have one PGL
file for all clients and servers. This will be a requirement for future
workloads.