add silly benchmarks

Makefile

@@ -5,4 +5,7 @@ test:
 		--reporter dot \
 		--bail
 
-.PHONY: test
+bench:
+	@./node_modules/.bin/matcha
+
+.PHONY: test bench

benchmark/index.js

@@ -0,0 +1,16 @@
+
+var fs = require('fs');
+var parse = require('..');
+
+var large = fs.readFileSync('examples/page.xml', 'utf8');
+var small = fs.readFileSync('examples/developerforce.xml', 'utf8');
+
+suite('parse', function(){
+  bench('small', function(){
+    parse(small)
+  })
+
+  bench('large', function(){
+    parse(large)
+  })
+})

package.json

@@ -12,7 +12,8 @@
   },
   "devDependencies": {
     "mocha": "*",
-    "should": "*"
+    "should": "*",
+    "matcha": "~0.4.1"
   },
   "license": "MIT"
 }