aboutsummaryrefslogtreecommitdiffstats
path: root/lib/kernel/test
diff options
context:
space:
mode:
Diffstat (limited to 'lib/kernel/test')
-rw-r--r--lib/kernel/test/gen_udp_SUITE.erl120
-rw-r--r--lib/kernel/test/zlib_SUITE.erl47
2 files changed, 80 insertions, 87 deletions
diff --git a/lib/kernel/test/gen_udp_SUITE.erl b/lib/kernel/test/gen_udp_SUITE.erl
index aa616d43d6..96e495505a 100644
--- a/lib/kernel/test/gen_udp_SUITE.erl
+++ b/lib/kernel/test/gen_udp_SUITE.erl
@@ -288,58 +288,56 @@ bad_address(Config) when is_list(Config) ->
%%
%% Starts a slave node that on command sends a bunch of messages
%% to our UDP port. The receiving process just receives and
-%% ignores the incoming messages, but counts them.
-%% A tracing process traces the receiving process for
-%% 'receive' and scheduling events. From the trace,
-%% message contents is verified; and, how many messages
-%% are received per in/out scheduling, which should be
-%% the same as the read_packets parameter.
-%%
-%% What happens on the SMP emulator remains to be seen...
-%%
+%% ignores the incoming messages.
+%% A tracing process traces the receiving port for
+%% 'send' and scheduling events. From the trace,
+%% how many messages are received per in/out scheduling,
+%% which should never be more than the read_packet parameter.
%% OTP-6249 UDP option for number of packet reads.
read_packets(Config) when is_list(Config) ->
- case erlang:system_info(smp_support) of
- false ->
- read_packets_1();
- true ->
- %% We would need some new sort of tracing to test this
- %% option reliably in an SMP emulator.
- {skip,"SMP emulator"}
- end.
-
-read_packets_1() ->
N1 = 5,
- N2 = 7,
+ N2 = 1,
+ Msgs = 30000,
{ok,R} = gen_udp:open(0, [{read_packets,N1}]),
{ok,RP} = inet:port(R),
{ok,Node} = start_node(gen_udp_SUITE_read_packets),
Die = make_ref(),
- Loop = erlang:spawn_link(fun () -> infinite_loop(Die) end),
%%
- Msgs1 = [erlang:integer_to_list(M) || M <- lists:seq(1, N1*3)],
- [V1|_] = read_packets_test(R, RP, Msgs1, Node),
+ {V1, Trace1} = read_packets_test(R, RP, Msgs, Node),
{ok,[{read_packets,N1}]} = inet:getopts(R, [read_packets]),
%%
ok = inet:setopts(R, [{read_packets,N2}]),
- Msgs2 = [erlang:integer_to_list(M) || M <- lists:seq(1, N2*3)],
- [V2|_] = read_packets_test(R, RP, Msgs2, Node),
+ {V2, Trace2} = read_packets_test(R, RP, Msgs, Node),
{ok,[{read_packets,N2}]} = inet:getopts(R, [read_packets]),
%%
stop_node(Node),
- Mref = erlang:monitor(process, Loop),
- Loop ! Die,
- receive
- {'DOWN',Mref,_,_, normal} ->
- case {V1,V2} of
- {N1,N2} ->
- ok;
- _ when V1 =/= N1, V2 =/= N2 ->
- ok
- end
+ ct:log("N1=~p, V1=~p vs N2=~p, V2=~p",[N1,V1,N2,V2]),
+
+ dump_terms(Config, "trace1.terms", Trace2),
+ dump_terms(Config, "trace2.terms", Trace2),
+
+ %% Because of the inherit racy-ness of the feature it is
+ %% hard to test that it behaves correctly.
+ %% Right now (OTP 21) a port task takes 5% of the
+ %% allotted port task reductions to execute, so
+ %% the max number of executions a port is allowed to
+ %% do before being re-scheduled is N * 20
+
+ if
+ V1 > (N1 * 20) ->
+ ct:fail("Got ~p msgs, max was ~p", [V1, N1]);
+ V2 > (N2 * 20) ->
+ ct:fail("Got ~p msgs, max was ~p", [V2, N2]);
+ true ->
+ ok
end.
+dump_terms(Config, Name, Terms) ->
+ FName = filename:join(proplists:get_value(priv_dir, Config),Name),
+ file:write_file(FName, term_to_binary(Terms)),
+ ct:log("Logged terms to ~s",[FName]).
+
infinite_loop(Die) ->
receive
Die ->
@@ -350,7 +348,6 @@ infinite_loop(Die) ->
end.
read_packets_test(R, RP, Msgs, Node) ->
- Len = length(Msgs),
Receiver = self(),
Tracer =
spawn_link(
@@ -375,24 +372,24 @@ read_packets_test(R, RP, Msgs, Node) ->
[link,{priority,high}]),
receive
{Sender,{port,SP}} ->
- erlang:trace(self(), true,
- [running,'receive',{tracer,Tracer}]),
+ erlang:trace(R, true,
+ [running_ports,'send',{tracer,Tracer}]),
erlang:yield(),
Sender ! {Receiver,go},
- read_packets_recv(Len),
- erlang:trace(self(), false, [all]),
+ read_packets_recv(Msgs),
+ erlang:trace(R, false, [all]),
Tracer ! {Receiver,get_trace},
receive
{Tracer,{trace,Trace}} ->
- read_packets_verify(R, SP, Msgs, Trace)
+ {read_packets_verify(R, SP, Trace), Trace}
end
end.
-read_packets_send(S, RP, [Msg|Msgs]) ->
- ok = gen_udp:send(S, localhost, RP, Msg),
- read_packets_send(S, RP, Msgs);
-read_packets_send(_S, _RP, []) ->
- ok.
+read_packets_send(_S, _RP, 0) ->
+ ok;
+read_packets_send(S, RP, Msgs) ->
+ ok = gen_udp:send(S, localhost, RP, "UDP FLOOOOOOD"),
+ read_packets_send(S, RP, Msgs - 1).
read_packets_recv(0) ->
ok;
@@ -404,23 +401,24 @@ read_packets_recv(N) ->
timeout
end.
-read_packets_verify(R, SP, Msg, Trace) ->
- lists:reverse(
- lists:sort(read_packets_verify(R, SP, Msg, Trace, 0))).
-
-read_packets_verify(R, SP, Msgs, [{trace,Self,OutIn,_}|Trace], M)
- when Self =:= self(), OutIn =:= out;
- Self =:= self(), OutIn =:= in ->
- push(M, read_packets_verify(R, SP, Msgs, Trace, 0));
-read_packets_verify(R, SP, [Msg|Msgs],
- [{trace,Self,'receive',{udp,R,{127,0,0,1},SP,Msg}}
- |Trace], M)
+read_packets_verify(R, SP, Trace) ->
+ [Max | _] = Pkts = lists:reverse(lists:sort(read_packets_verify(R, SP, Trace, 0))),
+ ct:pal("~p",[lists:sublist(Pkts,10)]),
+ Max.
+
+read_packets_verify(R, SP, [{trace,R,OutIn,_}|Trace], M)
+ when OutIn =:= out; OutIn =:= in ->
+ push(M, read_packets_verify(R, SP, Trace, 0));
+read_packets_verify(R, SP, [{trace, R,'receive',timeout}|Trace], M) ->
+ push(M, read_packets_verify(R, SP, Trace, 0));
+read_packets_verify(R, SP,
+ [{trace,R,'send',{udp,R,{127,0,0,1},SP,_Msg}, Self} | Trace], M)
when Self =:= self() ->
- read_packets_verify(R, SP, Msgs, Trace, M+1);
-read_packets_verify(_R, _SP, [], [], M) ->
+ read_packets_verify(R, SP, Trace, M+1);
+read_packets_verify(_R, _SP, [], M) ->
push(M, []);
-read_packets_verify(_R, _SP, Msgs, Trace, M) ->
- ct:fail({read_packets_verify,mismatch,Msgs,Trace,M}).
+read_packets_verify(_R, _SP, Trace, M) ->
+ ct:fail({read_packets_verify,mismatch,Trace,M}).
push(0, Vs) ->
Vs;
diff --git a/lib/kernel/test/zlib_SUITE.erl b/lib/kernel/test/zlib_SUITE.erl
index d17eded811..131a0685cd 100644
--- a/lib/kernel/test/zlib_SUITE.erl
+++ b/lib/kernel/test/zlib_SUITE.erl
@@ -1008,32 +1008,27 @@ sub_heap_binaries(Config) when is_list(Config) ->
%% Check concurrent access to zlib driver.
smp(Config) ->
- case erlang:system_info(smp_support) of
- true ->
- NumOfProcs = lists:min([8,erlang:system_info(schedulers)]),
- io:format("smp starting ~p workers\n",[NumOfProcs]),
-
- %% Tests to run in parallel.
- Funcs =
- [zip_usage, gz_usage, compress_usage, dictionary_usage,
- crc, adler],
-
- %% We get all function arguments here to avoid repeated parallel
- %% file read access.
- UsageArgs =
- list_to_tuple([{F, ?MODULE:F({get_arg,Config})} || F <- Funcs]),
- Parent = self(),
-
- WorkerFun =
- fun() ->
- worker(rand:uniform(9999), UsageArgs, Parent)
- end,
-
- Pids = [spawn_link(WorkerFun) || _ <- lists:seq(1, NumOfProcs)],
- wait_pids(Pids);
- false ->
- {skipped,"No smp support"}
- end.
+ NumOfProcs = lists:min([8,erlang:system_info(schedulers)]),
+ io:format("smp starting ~p workers\n",[NumOfProcs]),
+
+ %% Tests to run in parallel.
+ Funcs =
+ [zip_usage, gz_usage, compress_usage, dictionary_usage,
+ crc, adler],
+
+ %% We get all function arguments here to avoid repeated parallel
+ %% file read access.
+ UsageArgs =
+ list_to_tuple([{F, ?MODULE:F({get_arg,Config})} || F <- Funcs]),
+ Parent = self(),
+
+ WorkerFun =
+ fun() ->
+ worker(rand:uniform(9999), UsageArgs, Parent)
+ end,
+
+ Pids = [spawn_link(WorkerFun) || _ <- lists:seq(1, NumOfProcs)],
+ wait_pids(Pids).
worker(Seed, FnATpl, Parent) ->
io:format("smp worker ~p, seed=~p~n",[self(),Seed]),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 15:57:36 +0000