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Now you can fire up JMeter and open the JMX file containing the test plan.
Generating random file sizes with a gaussian distribution
When you want to create a different input file for the file sizes this can be done in Octave/Matlab:
octave:1> x = round((stdnormal_rnd(1,100) * 128) + 256);
octave:2> save "file_sizes.txt" x;
The data file needs some postprocessing (remove comments, insert line breaks). This can be achieved with some standard GNU tools:
sed '/^\#/d'file_sizes.txt | tr " " "\n" | sed '/^$/d' > tmp.txt
mv tmp.txt file_sizes.txt
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| Fig. 1: Histogram of the current data set |
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