I would like to use the functionality of HeapSnapshot.js for profiling Node.js. I'm just not quite sure how to require and use it.
There are existing projects such as v8-profiler and node-memwatch that can take snapshots. However, we're not able to access any of the dominator/retainer info. According to this, Google removed that code from V8 a while back: https://github.com/dannycoates/v8-profiler/issues/16#issuecomment-9099768 Without the dominator code it's pretty difficult to extract useful info from the heap dump. This code appears to contain the functionality I'm looking for: https://trac.webkit.org/browser/trunk/Source/WebCore/inspector/front-end/HeapSnapshot.js#L1342 I would like to either: - Use this code to wrap an existing snapshot taken by node-memwatch or v8-profiler. - Reference the webkit code as a module which can perform the snapshot and return javascript objects that I can further manipulate. I'm a bit over my head dealing with C++ and V8 internals, but it seems like an adaptation should be possible. I'm happy to share whatever solution I arrive at. Better tools to troubleshoot memory leaks would benefit the Node.js community at large. Can anyone help me find the right way to do this? Thanks, Brandon
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