Let's look for heavy cpu usage!

gistfile1.txt

fromStream("$stats-127.0.0.1:2113").when( {
                        "$stats-collected" : function(s,e) { 
                            var total = e.body["sys-cpu"];
                            if(total > 40) {
                                emit("heavycpu", "heavycpufound", {});
                        }}
    })