Firefox/Goals/2010Q1/IO Reduction Criteria
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This is the current criteria used for the goal "> 50% reduction of main thread I/O". This may not be the best criteria out there, but it's the best we've got at the moment. This may improve over time.
The numbers are obtained with this dtrace script.
Steps to run for version 1.1:
new profile, open once, let it do its normal first run thing. clear history. open up one more time, then quit. dtrace -s sdwilsh-io.d > data.log ./firefox-bin -P io wait for page to load; cmd + l; google.com wait for page to load; cmd + l; gmail.com wait for page to load; login to gmail wait for page to load (+inbox fully loaded); cmd + l; digg.com wait for page to load; cmd + l; twitter.com wait for page to load; log in to twitter wait for page to load; cmd + l; facebook.com wait for page to load; log in to facebook wait for page to load; techcrunch.com wait for page to load; cmd + l; cnn.com wait for page to load; quit stop dtrace script