Thomas Renninger wrote:
> Hi,
> 
> can someone explain me what the difference between the red and the green
> line, http vs. idle is here:
> http://www.lesswatts.org/results/server/index.php
> 

the idle line (red) shows the relative power behavior of 
kernels/features when the system is idle. The http line (green) shows 
the same, but when the system is under a moderate webserver workload 
(a fixed amount of http requests per second of a dynamically generated 
webpage).

Lower power is better obviously ;)

the first picture shows that 2.6.23 is pretty much identical to 2.6.22 
in the idle configuration, but saves about a watt in the http load 
situation.

the second picture shows that tickless helps both idle and http by 
about 8 watts, and that then turning on the power aware scheduler 
helps the http workload by another 8 watts, while this scheduler 
feature doesn't help the idle workload (since there's nothing to 
schedule).

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