gistfile1.scala

    val encoder = new com.mongodb.DefaultDBEncoder()
    def encode(doc: DBObject): Long = {
      encoder.synchronized { 
        val start = System.currentTimeMillis()
        val encoded = encoder.encode(doc)
        val end = System.currentTimeMillis()
        end - start
      }
    }
    DeregisterConversionHelpers()
    DeregisterJodaTimeConversionHelpers()

 
   "Produce viable performance numbers to test off of " >> {
      "Encoding DateTimes without any custom encoders registered " in {
        var total = 0.0
        val x = 1000000
        for (n <- 1 to x) {
          val doc = MongoDBObject("date" -> new JDKDate, "foo" -> "bar", "x" -> 5.2)
          total += encode(doc)
        }

        val avg = total / x  

        log.error("[Basic] Average encoding time over %s tries: %f [%s]", x, avg, total)
        avg must beGreaterThan(0.0)
      }
      "Encoding Joda DateTimes with custom encoders registered " in {
        RegisterJodaTimeConversionHelpers()
        var total = 0.0
        val x = 1000000
        for (n <- 1 to x) {
          val doc = MongoDBObject("date" -> DateTime.now, "foo" -> "bar", "x" -> 5.2)
          total += encode(doc)
        }

        val avg = total / x  

        log.error("[Custom Types] Average encoding time over %s tries: %f [%s]", x, avg, total)
        avg must beGreaterThan(0.0)
      }
    }