Matt Jeanes BlooJeans

## Flamegraph_osx.md

      
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                Node.js flamegraphs on osx using instruments.app, node and http://thlorenz.github.io/flamegraph/web/
              
          
    Flamegraphs for your node processes on OS X

This document will help you generate flamegraphs for your node processes on OS X.
You can read about the various types of flamegraphs and how they are useful

in Brendan Gregg's wonderful write up here.
By the end of this document, you should have a flamegraph for you node app to play with.

  
## gist:134896c7414fde8e090b
// a list of useful queries for profiler analysis.  Starting with the most basic.
// 2.4 compatible
//

// output explained:
//
{
 "ts" : ISODate("2012-09-14T16:34:00.010Z"),  			// date it occurred
	"op" : "query",						// the operation type
	"ns" : "game.players",					// the db and collection
	// a list of useful queries for profiler analysis. Starting with the most basic.
	// 2.4 compatible
	//

	// output explained:
	//
	{
	"ts" : ISODate("2012-09-14T16:34:00.010Z"), // date it occurred
	"op" : "query", // the operation type
	"ns" : "game.players", // the db and collection