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-rw-r--r--erts/emulator/test/distribution_SUITE.erl44
-rw-r--r--erts/emulator/test/driver_SUITE.erl4
-rw-r--r--erts/emulator/test/lcnt_SUITE.erl3
-rw-r--r--erts/emulator/test/statistics_SUITE.erl43
4 files changed, 76 insertions, 18 deletions
diff --git a/erts/emulator/test/distribution_SUITE.erl b/erts/emulator/test/distribution_SUITE.erl
index 449821e5ad..58194cf167 100644
--- a/erts/emulator/test/distribution_SUITE.erl
+++ b/erts/emulator/test/distribution_SUITE.erl
@@ -39,6 +39,8 @@
-define(Line,).
-export([all/0, suite/0, groups/0,
+ init_per_suite/1, end_per_suite/1,
+ init_per_group/2, end_per_group/2,
ping/1, bulk_send_small/1,
group_leader/1,
optimistic_dflags/1,
@@ -119,6 +121,28 @@ groups() ->
message_latency_large_exit2]}
].
+init_per_suite(Config) ->
+ {ok, Apps} = application:ensure_all_started(os_mon),
+ [{started_apps, Apps} | Config].
+
+end_per_suite(Config) ->
+ Apps = proplists:get_value(started_apps, Config),
+ [application:stop(App) || App <- lists:reverse(Apps)],
+ Config.
+
+init_per_group(message_latency, Config) ->
+ Free = free_memory(),
+ if Free < 2048 ->
+ {skip, "Not enough memory"};
+ true ->
+ Config
+ end;
+init_per_group(_, Config) ->
+ Config.
+
+end_per_group(_, Config) ->
+ Config.
+
%% Tests pinging a node in different ways.
ping(Config) when is_list(Config) ->
Times = 1024,
@@ -2845,3 +2869,23 @@ uint8(Uint) when is_integer(Uint), 0 =< Uint, Uint < 1 bsl 8 ->
Uint band 16#ff;
uint8(Uint) ->
exit({badarg, uint8, [Uint]}).
+
+free_memory() ->
+ %% Free memory in MB.
+ try
+ SMD = memsup:get_system_memory_data(),
+ {value, {free_memory, Free}} = lists:keysearch(free_memory, 1, SMD),
+ TotFree = (Free +
+ case lists:keysearch(cached_memory, 1, SMD) of
+ {value, {cached_memory, Cached}} -> Cached;
+ false -> 0
+ end +
+ case lists:keysearch(buffered_memory, 1, SMD) of
+ {value, {buffered_memory, Buffed}} -> Buffed;
+ false -> 0
+ end),
+ TotFree div (1024*1024)
+ catch
+ error : undef ->
+ ct:fail({"os_mon not built"})
+ end.
diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl
index bb0f3498ab..cbed71cedd 100644
--- a/erts/emulator/test/driver_SUITE.erl
+++ b/erts/emulator/test/driver_SUITE.erl
@@ -998,7 +998,9 @@ chkio_test({erts_poll_info, Before},
During = get_check_io_total(erlang:system_info(check_io)),
erlang:display(During),
- 0 = element(1, erts_debug:get_internal_state(check_io_debug)),
+ [0 = element(1, erts_debug:get_internal_state(check_io_debug)) ||
+ %% The pollset is not stable when running the fallback testcase
+ Test /= ?CHKIO_USE_FALLBACK_POLLSET],
io:format("During test: ~p~n", [During]),
chk_chkio_port(Port),
case erlang:port_control(Port, ?CHKIO_STOP, "") of
diff --git a/erts/emulator/test/lcnt_SUITE.erl b/erts/emulator/test/lcnt_SUITE.erl
index 87b97037d6..2dbaec9942 100644
--- a/erts/emulator/test/lcnt_SUITE.erl
+++ b/erts/emulator/test/lcnt_SUITE.erl
@@ -187,5 +187,8 @@ remove_untoggleable_locks([]) ->
[];
remove_untoggleable_locks([{resource_monitors, _, _, _} | T]) ->
remove_untoggleable_locks(T);
+remove_untoggleable_locks([{'socket[gcnt]', _, _, _} | T]) ->
+ %% Global lock used by socket NIF
+ remove_untoggleable_locks(T);
remove_untoggleable_locks([H | T]) ->
[H | remove_untoggleable_locks(T)].
diff --git a/erts/emulator/test/statistics_SUITE.erl b/erts/emulator/test/statistics_SUITE.erl
index ae3099633a..d278ac86c7 100644
--- a/erts/emulator/test/statistics_SUITE.erl
+++ b/erts/emulator/test/statistics_SUITE.erl
@@ -93,25 +93,34 @@ wall_clock_zero_diff1(0) ->
%% statistics(wall_clock) are compatible, and are within a small number
%% of ms of the amount of real time we waited for.
wall_clock_update(Config) when is_list(Config) ->
- wall_clock_update1(6).
+ N = 10,
+ Inc = 200,
+ TotalTime = wall_clock_update1(N, Inc, 0),
+ Overhead = TotalTime - N * Inc,
+ IsDebug = test_server:is_debug(),
-wall_clock_update1(N) when N > 0 ->
- {T1_wc_time, _} = statistics(wall_clock),
- receive after 1000 -> ok end,
- {T2_wc_time, Wc_Diff} = statistics(wall_clock),
-
- Wc_Diff = T2_wc_time - T1_wc_time,
- io:format("Wall clock diff = ~p; should be = 1000..1040~n", [Wc_Diff]),
- case test_server:is_debug() of
- false ->
- true = Wc_Diff =< 1040;
+ %% Check that the average overhead is reasonable.
+ if
+ Overhead < N * 100 ->
+ ok;
+ IsDebug, Overhead < N * 1000 ->
+ ok;
true ->
- true = Wc_Diff =< 2000 %Be more tolerant in debug-compiled emulator.
- end,
- true = Wc_Diff >= 1000,
- wall_clock_update1(N-1);
-wall_clock_update1(0) ->
- ok.
+ io:format("There was an overhead of ~p ms during ~p rounds.",
+ [Overhead,N]),
+ ct:fail(too_much_overhead)
+ end.
+
+wall_clock_update1(N, Inc, Total) when N > 0 ->
+ {Time1, _} = statistics(wall_clock),
+ receive after Inc -> ok end,
+ {Time2, WcDiff} = statistics(wall_clock),
+ WcDiff = Time2 - Time1,
+ io:format("Wall clock diff = ~p (expected at least ~p)\n", [WcDiff,Inc]),
+ true = WcDiff >= Inc,
+ wall_clock_update1(N-1, Inc, Total + WcDiff);
+wall_clock_update1(0, _, Total) ->
+ Total.
%%% Test statistics(runtime).