class_docstr: Benchmark that times running a number of empty subtasks
class_docstr_tok: ["Benchmark","that","times","running","a","number","of","empty","subtasks"]
code: def time_remotes(self):
      def empty_fun(_i):
          pass
  
      remotes = [mr.spawn(empty_fun, args=(i,)) for i in range(1000)]
      execute(*remotes, session=self.session)
  
imports: import mars.remote
  from mars import new_session, execute
label_desc: Use image node_id 3 for calling the EmptyRemotesExecutionSuite obj's underlying member method code with example usage: obj.time_remotes() without return types