Add simple benchmark script

services/track-changes/benchmark.coffee

@@ -0,0 +1,56 @@
+request = require "request"
+rclient = require("redis").createClient()
+async = require "async"
+{ObjectId} = require("./app/js/mongojs")
+
+NO_OF_DOCS = 100
+NO_OF_UPDATES = 200
+
+user_id = ObjectId().toString()
+
+updates = for i in [1..NO_OF_UPDATES]
+	{
+		op: { i: "a", p: 0 }
+		v: i
+		meta: ts: new Date(), user_id: user_id
+	}
+jsonUpdates = (JSON.stringify(u) for u in updates)
+
+doc_ids = (ObjectId().toString() for i in [1..NO_OF_DOCS])
+
+populateRedis = (callback = (error) ->) ->
+	console.log "Populating Redis queues..."
+
+	jobs = []
+	for doc_id in doc_ids
+		do (doc_id) ->
+			jobs.push (callback) ->
+				rclient.rpush "UncompressedHistoryOps:#{doc_id}", jsonUpdates..., callback
+	async.series jobs, (error) ->
+		return callback(error) if error?
+		console.log "Done."
+		callback()
+
+flushDocs = (callback = (error) ->) ->
+	console.log "Flushing docs..."
+	inProgress = 0
+	jobs = []
+	for doc_id in doc_ids
+		do (doc_id) ->
+			jobs.push (callback) ->
+				inProgress = inProgress + 1
+				request.post "http://localhost:3014/doc/#{doc_id}/flush", (error) ->
+					inProgress = inProgress - 1
+					console.log Date.now(), "In progress: #{inProgress}"
+					callback(error)
+	async.parallel jobs, (error) ->
+		return callback(error) if error?
+		console.log "Done."
+		callback()
+
+populateRedis (error) ->
+	throw error if error?
+	flushDocs (error) ->
+		throw error if error?
+		process.exit(0)
+