diff options
Diffstat (limited to 'lib/runtime_tools/src')
| -rw-r--r-- | lib/runtime_tools/src/dbg.erl | 6 | ||||
| -rw-r--r-- | lib/runtime_tools/src/observer_backend.erl | 41 | ||||
| -rw-r--r-- | lib/runtime_tools/src/ttb_autostart.erl | 1 |
3 files changed, 35 insertions, 13 deletions
diff --git a/lib/runtime_tools/src/dbg.erl b/lib/runtime_tools/src/dbg.erl index 6e3bfe31c6..6b2fb0460f 100644 --- a/lib/runtime_tools/src/dbg.erl +++ b/lib/runtime_tools/src/dbg.erl @@ -551,8 +551,7 @@ c(M, F, A, Flags) -> stop_clear(), {error, Reason}; {Pid, Res} -> - erlang:demonitor(Mref), - receive {'DOWN', Mref, _, _, _} -> ok after 0 -> ok end, + erlang:demonitor(Mref, [flush]), %% 'sleep' prevents the tracer (recv_all_traces) from %% receiving garbage {'EXIT',...} when dbg i stopped. timer:sleep(1), @@ -592,8 +591,7 @@ req(R) -> {'DOWN', Mref, _, _, _} -> % If server died exit(dbg_server_crash); {dbg, Reply} -> - erlang:demonitor(Mref), - receive {'DOWN', Mref, _, _, _} -> ok after 0 -> ok end, + erlang:demonitor(Mref, [flush]), Reply end. diff --git a/lib/runtime_tools/src/observer_backend.erl b/lib/runtime_tools/src/observer_backend.erl index 9498412505..d1d291d5cb 100644 --- a/lib/runtime_tools/src/observer_backend.erl +++ b/lib/runtime_tools/src/observer_backend.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2002-2012. All Rights Reserved. +%% Copyright Ericsson AB 2002-2013. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -199,34 +199,57 @@ get_table_list(mnesia, Opts) -> lists:foldl(Info, [], mnesia:system_info(tables)). fetch_stats(Parent, Time) -> - erlang:system_flag(scheduler_wall_time, true), process_flag(trap_exit, true), - fetch_stats_loop(Parent, Time), - erlang:system_flag(scheduler_wall_time, false). + fetch_stats_loop(Parent, Time). fetch_stats_loop(Parent, Time) -> + erlang:system_flag(scheduler_wall_time, true), receive - _Msg -> normal + _Msg -> erlang:system_flag(scheduler_wall_time, false) after Time -> _M = Parent ! {stats, 1, erlang:statistics(scheduler_wall_time), erlang:statistics(io), erlang:memory()}, - fetch_stats(Parent, Time) + fetch_stats_loop(Parent, Time) end. %% %% etop backend %% etop_collect(Collector) -> + %% If this is the first time and the scheduler_wall_time flag is + %% false, SchedulerWallTime will be 'undefined' (and show 0 cpu + %% utilization in etop). Next time the flag will be true and then + %% there will be a measurement. + SchedulerWallTime = erlang:statistics(scheduler_wall_time), + + %% Turn off the flag while collecting data per process etc. + case erlang:system_flag(scheduler_wall_time,false) of + false -> + %% First time and the flag was false - start a monitoring + %% process to set the flag back to false when etop is stopped. + spawn(fun() -> flag_holder_proc(Collector) end); + _ -> + ok + end, + ProcInfo = etop_collect(processes(), []), + Collector ! {self(),#etop_info{now = now(), n_procs = length(ProcInfo), run_queue = erlang:statistics(run_queue), - wall_clock = erlang:statistics(wall_clock), - runtime = erlang:statistics(runtime), + runtime = SchedulerWallTime, memi = etop_memi(), procinfo = ProcInfo - }}. + }}, + erlang:system_flag(scheduler_wall_time,true). + +flag_holder_proc(Collector) -> + Ref = erlang:monitor(process,Collector), + receive + {'DOWN',Ref,_,_,_} -> + erlang:system_flag(scheduler_wall_time,false) + end. etop_memi() -> try diff --git a/lib/runtime_tools/src/ttb_autostart.erl b/lib/runtime_tools/src/ttb_autostart.erl index 4c6971c119..5339507cec 100644 --- a/lib/runtime_tools/src/ttb_autostart.erl +++ b/lib/runtime_tools/src/ttb_autostart.erl @@ -1,3 +1,4 @@ +%%%-*- coding: utf-8 -*- %%%------------------------------------------------------------------- %%% File : ttb_autostart.erl %%% Author : Bartłomiej Puzoń <[email protected]> |