--- /dev/null
+"use strict"
+
+var createTree = require("../rbtree.js")
+
+var t = createTree()
+
+var s = Date.now()
+for(var i=0; i<100000; ++i) {
+ t = t.insert(Math.random(), Math.random())
+}
+console.log(Date.now() - s)
\ No newline at end of file