OperationResult OnUseActor(UseActor msg, IOperationContext context)
 {
     _actor = ActorProxy.Create<ISFTestActor>(new ActorId(msg.ActorName), new Uri("fabric:/SFActorsPerfTest/SFTestActorService"));
     return OperationResult.Success;
 }
 OperationResult OnUseActor(UseActor msg, IOperationContext context)
 {
     _actor = ActorProxy.Create <ISFTestActor>(new ActorId(msg.ActorName), new Uri("fabric:/SFActorsPerfTest/SFTestActorService"));
     return(OperationResult.Success);
 }