Been doing some research and I found some good articles for Rails performance optimization. For those interested in such things, I thought I'd share:

• Good set of slides (once you get past some early slides) with some tips focused on different aspects of the stack: http://www.scribd.com/doc/15336193/Advanced-Performance-Optimization-of-Rails-Applications


• A short list of optimization tips (which look to have been learned the hard way): http://garrickvanburen.com/archive/optimization-tips-ruby-on-rails-and-mysql


• A not so short list of optimization tips: http://blog.pluron.com/2008/01/guerrillas-way.html


• A bit of a high-level article, but I found the three design tips insightful: http://blogs.zdnet.com/enterprisealley/?p=188


• And in general, I really liked the content linked on this site for resource on rails performance tuning: http://www.buildingwebapps.com/topic/5197-performance-tuning-for-ruby-on-rails

Enjoy. And please, share some other links if you have em.

When testing web services it's often nice to be able to process a set of XML files. In other automation it can be nice to process batches of files as well. For some reason I can never find the following code when I need it and I always have to re-code it from scratch. That's always good practice, but it's annoying when I need it quickly.

def getFiles(directory)
returnFiles = []
Dir.glob(directory + '/*').each do | file |
if File.file?(file) then
returnFiles.push(file)
else
returnFiles.push(getFiles(file))
end
end
return returnFiles
end

So there it is. Google can now help me find my code whenever I need to build a list of all files in a directory structure.

Here is an example of how I might use that:

getFiles("C:/Regression Files").each do | testCaseFile |
resultsFile.puts(testCaseFile.to_s.split('/')[-1].chomp +
', methodName, ' + object.methodName(testCaseFile))
end