Did someone ever published significant performance results/tests/benchmarks on "scaled" Ruby On Rails apps (with Olio or not)?

I couldn't find anything over scholar.google.com, citeseerx.ist.psu.edu or  www.ieee.org

regards,
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Bruno Guimarães Sousa
www.ifba.edu.br
PONTONET - DGTI - IFBA
Ciência da Computação UFBA
Registered Linux user #465914