[Rabbit-dev] Rabbit-dev Digest, Vol 18, Issue 3

[Robert Olofsson]

On Mon, 22 Aug 2011 12:40:10 -0400
Luis Soltero <lsoltero at globalmarinenet.com> wrote:

> First you flush browser cash and disable
> the proxy settings and then browse the pages you are interested in.  
> Then you flush the cache again and enable proxy and do the browsing again.
> You then manually computer the ratios.

This is one metric, it is not the only way to compute such metrics.
This does not take the rabbit cache into account, how do you want to 
count the speedup of user 2-10 when they ask for the same image as
user 1 asked for, rabbit<->network traffic = 0, rabbit<->client traffic
is the compressed image. To what user should the speedup be accounted?
user 1 or users 2-10 or spread it out evenly to users 1-10?

Also, what is the speedup of blocking an ad? most of the times when you
request a big page it will have ads that rotate, so it gets kind of hard
to measure.

When rabbit converts a large image to a low quality jpeg rabbit also
adds latency, how do you want to attribute that latency? is it a 
speedup due to less network traffic or is it a slowdown due to latency?
It depends a lot on how fast the rabbit<->network connection is compared
to the rabbit<->browser connection.

All in all, quite complex to figure out a simple metric.

/robo