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-rw-r--r--erts/emulator/test/process_SUITE.erl318
1 files changed, 291 insertions, 27 deletions
diff --git a/erts/emulator/test/process_SUITE.erl b/erts/emulator/test/process_SUITE.erl
index 72f3e8fe85..97aa5e573e 100644
--- a/erts/emulator/test/process_SUITE.erl
+++ b/erts/emulator/test/process_SUITE.erl
@@ -3,16 +3,17 @@
%%
%% Copyright Ericsson AB 1997-2013. 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
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
%%
%% %CopyrightEnd%
%%
@@ -51,7 +52,13 @@
processes_term_proc_list/1,
otp_7738_waiting/1, otp_7738_suspended/1,
otp_7738_resume/1,
- garb_other_running/1]).
+ garb_other_running/1,
+ no_priority_inversion/1,
+ no_priority_inversion2/1,
+ system_task_blast/1,
+ system_task_on_suspended/1,
+ gc_request_when_gc_disabled/1,
+ gc_request_blast_when_gc_disabled/1]).
-export([prio_server/2, prio_client/2]).
-export([init_per_testcase/2, end_per_testcase/2]).
@@ -73,7 +80,8 @@ all() ->
bad_register, garbage_collect, process_info_messages,
process_flag_badarg, process_flag_heap_size,
spawn_opt_heap_size, otp_6237, {group, processes_bif},
- {group, otp_7738}, garb_other_running].
+ {group, otp_7738}, garb_other_running,
+ {group, system_task}].
groups() ->
[{t_exit_2, [],
@@ -87,12 +95,26 @@ groups() ->
processes_gc_trap, processes_term_proc_list]},
{otp_7738, [],
[otp_7738_waiting, otp_7738_suspended,
- otp_7738_resume]}].
+ otp_7738_resume]},
+ {system_task, [],
+ [no_priority_inversion, no_priority_inversion2,
+ system_task_blast, system_task_on_suspended,
+ gc_request_when_gc_disabled, gc_request_blast_when_gc_disabled]}].
init_per_suite(Config) ->
- Config.
+ A0 = case application:start(sasl) of
+ ok -> [sasl];
+ _ -> []
+ end,
+ A = case application:start(os_mon) of
+ ok -> [os_mon|A0];
+ _ -> A0
+ end,
+ [{started_apps, A}|Config].
end_per_suite(Config) ->
+ As = ?config(started_apps, Config),
+ lists:foreach(fun (A) -> application:stop(A) end, As),
catch erts_debug:set_internal_state(available_internal_state, false),
Config.
@@ -102,7 +124,6 @@ init_per_group(_GroupName, Config) ->
end_per_group(_GroupName, Config) ->
Config.
-
init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
Dog=?t:timetrap(?t:minutes(10)),
[{watchdog, Dog},{testcase, Func}|Config].
@@ -359,16 +380,15 @@ eat_high(Low) ->
process_flag(priority, high),
receive after 1000 -> ok end,
exit(Low, {you, are, dead}),
- {_, Sec, _} = now(),
- loop(Sec, Sec).
+ loop(erlang:monotonic_time() + erlang:convert_time_unit(5,seconds,native)).
%% Busy loop for 5 seconds.
-loop(OrigSec, CurrentSec) when CurrentSec < OrigSec+5 ->
- {_, NewSec, _} = now(),
- loop(OrigSec, NewSec);
-loop(_, _) ->
- ok.
+loop(StopTime) ->
+ case StopTime >= erlang:monotonic_time() of
+ true -> ok;
+ false -> loop(StopTime)
+ end.
%% Tries to send two different exit messages to a process.
@@ -1379,6 +1399,9 @@ processes_large_tab(doc) ->
processes_large_tab(suite) ->
[];
processes_large_tab(Config) when is_list(Config) ->
+ sys_mem_cond_run(2048, fun () -> processes_large_tab_test(Config) end).
+
+processes_large_tab_test(Config) ->
enable_internal_state(),
MaxDbgLvl = 20,
MinProcTabSize = 2*(1 bsl 15),
@@ -1430,6 +1453,9 @@ processes_default_tab(doc) ->
processes_default_tab(suite) ->
[];
processes_default_tab(Config) when is_list(Config) ->
+ sys_mem_cond_run(1024, fun () -> processes_default_tab_test(Config) end).
+
+processes_default_tab_test(Config) ->
{ok, DefaultNode} = start_node(Config, ""),
Res = rpc:call(DefaultNode, ?MODULE, processes_bif_test, []),
stop_node(DefaultNode),
@@ -1452,7 +1478,15 @@ processes_this_tab(doc) ->
processes_this_tab(suite) ->
[];
processes_this_tab(Config) when is_list(Config) ->
- chk_processes_bif_test_res(processes_bif_test()).
+ Mem = case {erlang:system_info(build_type),
+ erlang:system_info(allocator)} of
+ {lcnt, {_, _Vsn, [sys_alloc], _Opts}} ->
+ %% When running +Mea min + lcnt we may need more memory
+ 1024 * 4;
+ _ ->
+ 1024
+ end,
+ sys_mem_cond_run(Mem, fun () -> chk_processes_bif_test_res(processes_bif_test()) end).
chk_processes_bif_test_res(ok) -> ok;
chk_processes_bif_test_res({comment, _} = Comment) -> Comment;
@@ -2095,6 +2129,9 @@ otp_7738_resume(Config) when is_list(Config) ->
otp_7738_test(resume).
otp_7738_test(Type) ->
+ sys_mem_cond_run(3072, fun () -> do_otp_7738_test(Type) end).
+
+do_otp_7738_test(Type) ->
T = self(),
S = spawn_link(fun () ->
receive
@@ -2196,6 +2233,208 @@ garb_other_running(Config) when is_list(Config) ->
receive {'DOWN', Mon, process, Pid, normal} -> ok end,
ok.
+no_priority_inversion(Config) when is_list(Config) ->
+ Prio = process_flag(priority, max),
+ HTLs = lists:map(fun (_) ->
+ spawn_opt(fun () ->
+ tok_loop()
+ end,
+ [{priority, high}, monitor, link])
+ end,
+ lists:seq(1, 2*erlang:system_info(schedulers))),
+ receive after 500 -> ok end,
+ LTL = spawn_opt(fun () ->
+ tok_loop()
+ end,
+ [{priority, low}, monitor, link]),
+ false = erlang:check_process_code(element(1, LTL), nonexisting_module),
+ true = erlang:garbage_collect(element(1, LTL)),
+ lists:foreach(fun ({P, _}) ->
+ unlink(P),
+ exit(P, kill)
+ end, [LTL | HTLs]),
+ lists:foreach(fun ({P, M}) ->
+ receive
+ {'DOWN', M, process, P, killed} ->
+ ok
+ end
+ end, [LTL | HTLs]),
+ process_flag(priority, Prio),
+ ok.
+
+no_priority_inversion2(Config) when is_list(Config) ->
+ Prio = process_flag(priority, max),
+ MTLs = lists:map(fun (_) ->
+ spawn_opt(fun () ->
+ tok_loop()
+ end,
+ [{priority, max}, monitor, link])
+ end,
+ lists:seq(1, 2*erlang:system_info(schedulers))),
+ receive after 500 -> ok end,
+ {PL, ML} = spawn_opt(fun () ->
+ tok_loop()
+ end,
+ [{priority, low}, monitor, link]),
+ RL = request_gc(PL, low),
+ RN = request_gc(PL, normal),
+ RH = request_gc(PL, high),
+ receive
+ {garbage_collect, _, _} ->
+ ?t:fail(unexpected_gc)
+ after 1000 ->
+ ok
+ end,
+ RM = request_gc(PL, max),
+ receive
+ {garbage_collect, RM, true} ->
+ ok
+ end,
+ lists:foreach(fun ({P, _}) ->
+ unlink(P),
+ exit(P, kill)
+ end, MTLs),
+ lists:foreach(fun ({P, M}) ->
+ receive
+ {'DOWN', M, process, P, killed} ->
+ ok
+ end
+ end, MTLs),
+ receive
+ {garbage_collect, RH, true} ->
+ ok
+ end,
+ receive
+ {garbage_collect, RN, true} ->
+ ok
+ end,
+ receive
+ {garbage_collect, RL, true} ->
+ ok
+ end,
+ unlink(PL),
+ exit(PL, kill),
+ receive
+ {'DOWN', ML, process, PL, killed} ->
+ ok
+ end,
+ process_flag(priority, Prio),
+ ok.
+
+request_gc(Pid, Prio) ->
+ Ref = make_ref(),
+ erts_internal:request_system_task(Pid, Prio, {garbage_collect, Ref}),
+ Ref.
+
+system_task_blast(Config) when is_list(Config) ->
+ Me = self(),
+ GCReq = fun () ->
+ RL = gc_req(Me, 100),
+ lists:foreach(fun (R) ->
+ receive
+ {garbage_collect, R, true} ->
+ ok
+ end
+ end, RL),
+ exit(it_worked)
+ end,
+ HTLs = lists:map(fun (_) -> spawn_monitor(GCReq) end, lists:seq(1, 1000)),
+ lists:foreach(fun ({P, M}) ->
+ receive
+ {'DOWN', M, process, P, it_worked} ->
+ ok
+ end
+ end, HTLs),
+ ok.
+
+gc_req(_Pid, 0) ->
+ [];
+gc_req(Pid, N) ->
+ R0 = request_gc(Pid, low),
+ R1 = request_gc(Pid, normal),
+ R2 = request_gc(Pid, high),
+ R3 = request_gc(Pid, max),
+ [R0, R1, R2, R3 | gc_req(Pid, N-1)].
+
+system_task_on_suspended(Config) when is_list(Config) ->
+ {P, M} = spawn_monitor(fun () ->
+ tok_loop()
+ end),
+ true = erlang:suspend_process(P),
+ {status, suspended} = process_info(P, status),
+ true = erlang:garbage_collect(P),
+ {status, suspended} = process_info(P, status),
+ true = erlang:resume_process(P),
+ false = ({status, suspended} == process_info(P, status)),
+ exit(P, kill),
+ receive
+ {'DOWN', M, process, P, killed} ->
+ ok
+ end.
+
+gc_request_when_gc_disabled(Config) when is_list(Config) ->
+ Master = self(),
+ AIS = erts_debug:set_internal_state(available_internal_state, true),
+ {P, M} = spawn_opt(fun () ->
+ true = erts_debug:set_internal_state(gc_state,
+ false),
+ Master ! {self(), gc_state, false},
+ receive after 1000 -> ok end,
+ Master ! {self(), gc_state, true},
+ false = erts_debug:set_internal_state(gc_state,
+ true),
+ receive after 100 -> ok end
+ end, [monitor, link]),
+ receive {P, gc_state, false} -> ok end,
+ ReqId = make_ref(),
+ async = garbage_collect(P, [{async, ReqId}]),
+ receive
+ {garbage_collect, ReqId, Result} ->
+ ?t:fail({unexpected_gc, Result});
+ {P, gc_state, true} ->
+ ok
+ end,
+ receive {garbage_collect, ReqId, true} -> ok end,
+ erts_debug:set_internal_state(available_internal_state, AIS),
+ receive {'DOWN', M, process, P, _Reason} -> ok end,
+ ok.
+
+gc_request_blast_when_gc_disabled(Config) when is_list(Config) ->
+ Master = self(),
+ AIS = erts_debug:set_internal_state(available_internal_state, true),
+ {P, M} = spawn_opt(fun () ->
+ true = erts_debug:set_internal_state(gc_state,
+ false),
+ Master ! {self(), gc_state, false},
+ receive after 1000 -> ok end,
+ false = erts_debug:set_internal_state(gc_state,
+ true),
+ receive after 100 -> ok end
+ end, [monitor, link]),
+ receive {P, gc_state, false} -> ok end,
+ PMs = lists:map(fun (N) ->
+ Prio = case N rem 4 of
+ 0 -> max;
+ 1 -> high;
+ 2 -> normal;
+ 3 -> low
+ end,
+ spawn_opt(fun () ->
+ erlang:garbage_collect(P)
+ end, [monitor, link, {priority, Prio}])
+ end, lists:seq(1, 10000)),
+ lists:foreach(fun ({Proc, Mon}) ->
+ receive
+ {'DOWN', Mon, process, Proc, normal} ->
+ ok
+ end
+ end,
+ PMs),
+ erts_debug:set_internal_state(available_internal_state, AIS),
+ receive {'DOWN', M, process, P, _Reason} -> ok end,
+ ok.
+
+
%% Internal functions
wait_until(Fun) ->
@@ -2219,16 +2458,13 @@ start_node(Config) ->
start_node(Config, Args) when is_list(Config) ->
Pa = filename:dirname(code:which(?MODULE)),
- {A, B, C} = now(),
Name = list_to_atom(atom_to_list(?MODULE)
++ "-"
++ atom_to_list(?config(testcase, Config))
++ "-"
- ++ integer_to_list(A)
- ++ "-"
- ++ integer_to_list(B)
+ ++ integer_to_list(erlang:system_time(seconds))
++ "-"
- ++ integer_to_list(C)),
+ ++ integer_to_list(erlang:unique_integer([positive]))),
?t:start_node(Name, slave, [{args, "-pa "++Pa++" "++Args}]).
stop_node(Node) ->
@@ -2239,3 +2475,31 @@ enable_internal_state() ->
true -> true;
_ -> erts_debug:set_internal_state(available_internal_state, true)
end.
+
+sys_mem_cond_run(ReqSizeMB, TestFun) when is_integer(ReqSizeMB) ->
+ case total_memory() of
+ TotMem when is_integer(TotMem), TotMem >= ReqSizeMB ->
+ TestFun();
+ TotMem when is_integer(TotMem) ->
+ {skipped, "Not enough memory ("++integer_to_list(TotMem)++" MB)"};
+ undefined ->
+ {skipped, "Could not retrieve memory information"}
+ end.
+
+
+total_memory() ->
+ %% Totat memory in MB.
+ try
+ MemoryData = memsup:get_system_memory_data(),
+ case lists:keysearch(total_memory, 1, MemoryData) of
+ {value, {total_memory, TM}} ->
+ TM div (1024*1024);
+ false ->
+ {value, {system_total_memory, STM}} =
+ lists:keysearch(system_total_memory, 1, MemoryData),
+ STM div (1024*1024)
+ end
+ catch
+ _ : _ ->
+ undefined
+ end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-13 22:08:43 +0000