Where Does Your Node Program Spend Its Time?

January 06, 2012 - by davepacheco

Originally posted at Dave Pacheco's Blog.

Performance analysis is one of the most difficult challenges in building production software. If a slow application isn’t spending much time on CPU, it could be waiting on filesystem (disk) I/O, network traffic, garbage collection, or many other things. We built the Cloud Analytics tool to help administrators and developers quickly identify these sources of latency in production software. When the app is actually spending its time on CPU, the next step is figuring out what it’s doing: what functions it’s executing and who’s calling them.

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