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kennethgunn/v8_log_processing.md

Created September 30, 2013 21:36
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How to process a V8 profiling log file
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v8_log_processing.md

FIGURE OUT THE RIGHT V8 VERSION

  • check your node version (if you use nvm, the version will be in the path in the first line of v8.log)
  • open https://github.com/joyent/node/blob/master/deps/v8/ChangeLog
  • click the "branch: master" drop down
  • click "tags"
  • choose the proper version (e.g. v0.10.15)
  • version should be listed in top line (e.g., 3.14.5)

GET THE CORRECT LOG PROCESSOR

git clone http://github.com/v8/v8
cd v8
git checkout V8_VERSION # e.g. 3.14.5

RUN THE PROCESSOR FROM THE V8 FOLDER

cd V8_PATH
./tools/mac-tick-processor /PATH/TO/v8.log > /tmp/processed.log
less /tmp/processed.log
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