v8.log processor based on scripts in v8 distribution. Allows you to profile V8-based programs without installing V8 from source.
$ npm install -g tick
See V8 profiler page for basic introduction to v8.log
$ node --prof yourprogram
$ node-tick-processor
takeSnapshot
& startProfiling
& stopProfiling
V8 profiler API exposed to node.js: v8-profiler