anchor.diff:      [Address, Header, Body] = pushy_messaging:receive_message_async(CommandSock, Frame),
   
       % error_logger:info_msg("Received message~n\tA ~p~n\tH ~s~n\tB ~s~n", [Address, Header, Body]),
  -    State1 = case catch pushy_util:do_authenticate_message(Header, Body) of
  +    State1 = case catch ?TIME_IT(pushy_util, do_authenticate_message, (Header, Body)) of
                    ok ->
                        process_message(State, Address, Header, Body);
                    {no_authn, bad_sig} ->
                        error_logger:error_msg("Command message failed verification: header=~s~n", [Header]),
                        State
                end,
  -    {noreply, State1};
  -handle_info(_Info, State) ->
  -    {noreply, State}.
  -
  -terminate(_Reason, _State) ->
  -    ok.
  -
  -code_change(_OldVsn, State, _Extra) ->
  -    {ok, State}.
  -
  -%% ------------------------------------------------------------------
  -%% Internal Function Definitions
  -%% ------------------------------------------------------------------
  +    State1.
   
   do_send(#state{addr_node_map = AddrNodeMap,
                  command_sock = CommandSocket,
                  private_key = PrivateKey},
           Org, Node, Message) ->
       Address = addr_node_map_lookup_by_node(AddrNodeMap, {Org, Node}),
  -    push_messaging:send_message(CommandSocket, [Address, pushy_util:signed_header_from_message(PrivateKey, Message), Message]).
  +    push_messaging:send_message(CommandSocket, [Address,
  +        ?TIME_IT(pushy_util, signed_header_from_message, (PrivateKey, Message)),
  +        Message]).
   
   do_send_multi(#state{addr_node_map = AddrNodeMap,
                        command_sock = CommandSocket,
                        private_key = PrivateKey},
                 Org, Nodes, Message) ->
  -    FrameList = [ pushy_util:signed_header_from_message(PrivateKey, Message), Message],
  +    FrameList = [
  +        ?TIME_IT(pushy_util, signed_header_from_message, (PrivateKey, Message)), Message],
       AddressList = [addr_node_map_lookup_by_node(AddrNodeMap, {Org, Node}) || Node <- Nodes],
       pushy_messaging:send_message_multi(CommandSocket, AddressList, FrameList).
   
  
positive.code: 
  -include_lib("eunit/include/eunit.hrl").
  -include_lib("public_key/include/public_key.hrl").
  
  %% TODO : figure out where this really should come from
  -opaque dictionary() :: any().
  
negative.code:          send_multi_command/3]).
  
  %% ------------------------------------------------------------------
  %% Private Exports - only exported for instrumentation
  %% ------------------------------------------------------------------
  
  -export([do_receive/3,
           do_send/4,
           do_send_multi/4]).
  
  %% ------------------------------------------------------------------
  %% gen_server Function Exports
  %% ------------------------------------------------------------------
  
  