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In generating the bundlings for the experiments, we tried three
combinations of bundling parameters:
- Minimum edge weight 1.0, maximum bundle size 200, maximum bundle
spread 5. These bundling parameters are relatively strict, in the
sense that they forbid two files from being placed in the same
bundle if there were any profiles in which one was loaded without
the other. They also significantly limit the extent to which files
can be delivered ahead of when they are needed. These parameters produced a bundling
where the average bundle size was quite small, on the order of
3 or 4 files.
- Minimum edge weight 0.8, maximum bundle size 1000, maximum bundle
spread 200. This is a `looser' set of parameters, which permits files
to be placed in the same bundle even if they aren't always loaded together,
and also allows files to be sent significantly ahead of when they are needed.
These parameters produced a bundling where the bundles were larger,
the average bundle size being about 12 files.
- Minimum edge weight 0.8, maximum bundle size 1000, maximum bundle
spread 500. This is an even looser set of parameters, which produced
bundles whose average size was about 24 files.
Note that in all cases, the maximum bundle size parameter was
not reached, so bundle growth was only constrained by the minimum
edge weight and maximum bundle spread.
In the figures and text, the parameters used to generate a bundling
are specified in the form w-m-s, where w is the minimum
edge weight, m is the maximum bundle size, and s is the
maximum bundle spread.
David Hovemeyer
Tue Feb 27 18:43:09 EST 2001