From 9de9c8f4e16dc22125617cf69e95a5ab9efbad9b Mon Sep 17 00:00:00 2001 From: Raimo Niskanen Date: Mon, 11 Dec 2017 11:07:55 +0100 Subject: Remove test suite warning --- lib/stdlib/test/gen_statem_SUITE.erl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib/stdlib/test') diff --git a/lib/stdlib/test/gen_statem_SUITE.erl b/lib/stdlib/test/gen_statem_SUITE.erl index 5b9daecfd3..c747db475a 100644 --- a/lib/stdlib/test/gen_statem_SUITE.erl +++ b/lib/stdlib/test/gen_statem_SUITE.erl @@ -21,7 +21,7 @@ -include_lib("common_test/include/ct.hrl"). --compile(export_all). +-compile([export_all, nowarn_export_all]). -behaviour(gen_statem). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -- cgit v1.2.3 From 0f051cfe47532e8a008fec47e25715eeb8479a0c Mon Sep 17 00:00:00 2001 From: Raimo Niskanen Date: Tue, 16 Jan 2018 15:40:50 +0100 Subject: Introduce gen_statem vs gen_fsm benchmark Conflicts: lib/stdlib/test/stdlib_bench_SUITE.erl --- lib/stdlib/test/stdlib.spec | 3 +- lib/stdlib/test/stdlib_bench.spec | 3 +- lib/stdlib/test/stdlib_bench_SUITE.erl | 230 ++++++++++++++------- .../test/stdlib_bench_SUITE_data/generic_fsm.erl | 59 ++++++ .../stdlib_bench_SUITE_data/generic_statem.erl | 58 ++++++ .../generic_statem_complex.erl | 66 ++++++ 6 files changed, 348 insertions(+), 71 deletions(-) create mode 100644 lib/stdlib/test/stdlib_bench_SUITE_data/generic_fsm.erl create mode 100644 lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem.erl create mode 100644 lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem_complex.erl (limited to 'lib/stdlib/test') diff --git a/lib/stdlib/test/stdlib.spec b/lib/stdlib/test/stdlib.spec index 1adec67ac9..9c625091a8 100644 --- a/lib/stdlib/test/stdlib.spec +++ b/lib/stdlib/test/stdlib.spec @@ -1,3 +1,4 @@ {suites,"../stdlib_test",all}. -{skip_groups,"../stdlib_test",stdlib_bench_SUITE,[base64,gen_server,unicode], +{skip_groups,"../stdlib_test",stdlib_bench_SUITE, + [base64,gen_server,gen_statem,unicode], "Benchmark only"}. diff --git a/lib/stdlib/test/stdlib_bench.spec b/lib/stdlib/test/stdlib_bench.spec index f82f1ab9b3..7a0da811a0 100644 --- a/lib/stdlib/test/stdlib_bench.spec +++ b/lib/stdlib/test/stdlib_bench.spec @@ -5,5 +5,6 @@ {skip_suites,"../stdlib_test",string_SUITE, "bench only"}. {suites,"../stdlib_test",[stdlib_bench_SUITE]}. -{skip_groups,"../stdlib_test",stdlib_bench_SUITE,[gen_server_comparison], +{skip_groups,"../stdlib_test",stdlib_bench_SUITE, + [gen_server_comparison,gen_statem_comparison], "Not a benchmark"}. diff --git a/lib/stdlib/test/stdlib_bench_SUITE.erl b/lib/stdlib/test/stdlib_bench_SUITE.erl index 9ad4bae2f5..2ce089dbb7 100644 --- a/lib/stdlib/test/stdlib_bench_SUITE.erl +++ b/lib/stdlib/test/stdlib_bench_SUITE.erl @@ -30,7 +30,8 @@ suite() -> [{ct_hooks,[{ts_install_cth,[{nodenames,2}]}]}]. all() -> [{group,unicode},{group,base64}, - {group,gen_server},{group,gen_server_comparison}]. + {group,gen_server},{group,gen_statem}, + {group,gen_server_comparison},{group,gen_statem_comparison}]. groups() -> [{unicode,[{repeat,5}], @@ -44,20 +45,39 @@ groups() -> encode_list, encode_list_to_string, mime_binary_decode, mime_binary_decode_to_string, mime_list_decode, mime_list_decode_to_string]}, - {gen_server, [{repeat,5}], - [simple, simple_timer, simple_mon, simple_timer_mon, - generic, generic_timer]}, + {gen_server, [{repeat,5}], cases(gen_server)}, + {gen_statem, [{repeat,3}], cases(gen_statem)}, {gen_server_comparison, [], [single_small, single_medium, single_big, sched_small, sched_medium, sched_big, - multi_small, multi_medium, multi_big]}]. + multi_small, multi_medium, multi_big]}, + {gen_statem_comparison, [], + [single_small, single_big, + sched_small, sched_big, + multi_small, multi_big]}]. -init_per_group(GroupName, Config) when GroupName =:= gen_server; - GroupName =:= gen_server_comparison -> - DataDir = ?config(data_dir, Config), - Files = filelib:wildcard(filename:join(DataDir, "{simple,generic}*.erl")), - _ = [{ok, _} = compile:file(File) || File <- Files], - Config; +cases(gen_server) -> + [simple, simple_timer, simple_mon, simple_timer_mon, + generic, generic_timer]; +cases(gen_statem) -> + [generic, generic_fsm, generic_fsm_transit, + generic_statem, generic_statem_transit, + generic_statem_complex]. + +init_per_group(gen_server, Config) -> + compile_servers(Config), + [{benchmark_suite,"stdlib_gen_server"}|Config]; +init_per_group(gen_statem, Config) -> + compile_servers(Config), + [{benchmark_suite,"stdlib_gen_statem"}|Config]; +init_per_group(gen_server_comparison, Config) -> + compile_servers(Config), + [{cases,cases(gen_server)}, + {benchmark_suite,"stdlib_gen_server"}|Config]; +init_per_group(gen_statem_comparison, Config) -> + compile_servers(Config), + [{cases,cases(gen_statem)}, + {benchmark_suite,"stdlib_gen_statem"}|Config]; init_per_group(_GroupName, Config) -> Config. @@ -77,23 +97,33 @@ end_per_testcase(_Func, _Conf) -> ok. +compile_servers(Config) -> + DataDir = ?config(data_dir, Config), + Files = filelib:wildcard(filename:join(DataDir, "{simple,generic}*.erl")), + _ = [{ok, _} = compile:file(File) || File <- Files], + ok. + +comment(Value) -> + C = lists:flatten(io_lib:format("~p", [Value])), + {comment, C}. + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -define(REPEAT_NORM, 5). norm_nfc_list(Config) -> Bin = norm_data(Config), {_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, list, Bin, ?REPEAT_NORM), - report(1000.0*Res / Mean). + comment(report(1000.0*Res / Mean)). norm_nfc_deep_l(Config) -> Bin = norm_data(Config), {_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, deep_l, Bin, ?REPEAT_NORM), - report(1000.0*Res / Mean). + comment(report(1000.0*Res / Mean)). norm_nfc_binary(Config) -> Bin = norm_data(Config), {_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, binary, Bin, ?REPEAT_NORM), - report(1000.0*Res / Mean). + comment(report(1000.0*Res / Mean)). string_lexemes_list(Config) -> @@ -102,7 +132,7 @@ string_lexemes_list(Config) -> Bin = norm_data(Config), Fun = fun(Str) -> string:nth_lexeme(Str, 200000, [$;,$\n,$\r]), 200000 end, {_N, Mean, _Stddev, Res} = string_SUITE:time_func(Fun, list, Bin, 15), - report(1000.0*Res / Mean). + comment(report(1000.0*Res / Mean)). string_lexemes_binary(Config) -> %% Use nth_lexeme instead of lexemes to avoid building a result of @@ -110,7 +140,7 @@ string_lexemes_binary(Config) -> Bin = norm_data(Config), Fun = fun(Str) -> string:nth_lexeme(Str, 200000, [$;,$\n,$\r]), 200000 end, {_N, Mean, _Stddev, Res} = string_SUITE:time_func(Fun, binary, Bin, ?REPEAT_NORM), - report(1000.0*Res / Mean). + comment(report(1000.0*Res / Mean)). %%% report(Tps) -> @@ -128,40 +158,40 @@ norm_data(Config) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% decode_binary(_Config) -> - test(decode, encoded_binary()). + comment(test(decode, encoded_binary())). decode_binary_to_string(_Config) -> - test(decode_to_string, encoded_binary()). + comment(test(decode_to_string, encoded_binary())). decode_list(_Config) -> - test(decode, encoded_list()). + comment(test(decode, encoded_list())). decode_list_to_string(_Config) -> - test(decode_to_string, encoded_list()). + comment(test(decode_to_string, encoded_list())). encode_binary(_Config) -> - test(encode, binary()). + comment(test(encode, binary())). encode_binary_to_string(_Config) -> - test(encode_to_string, binary()). + comment(test(encode_to_string, binary())). encode_list(_Config) -> - test(encode, list()). + comment(test(encode, list())). encode_list_to_string(_Config) -> - test(encode_to_string, list()). + comment(test(encode_to_string, list())). mime_binary_decode(_Config) -> - test(mime_decode, encoded_binary()). + comment(test(mime_decode, encoded_binary())). mime_binary_decode_to_string(_Config) -> - test(mime_decode_to_string, encoded_binary()). + comment(test(mime_decode_to_string, encoded_binary())). mime_list_decode(_Config) -> - test(mime_decode, encoded_list()). + comment(test(mime_decode, encoded_list())). mime_list_decode_to_string(_Config) -> - test(mime_decode_to_string, encoded_list()). + comment(test(mime_decode_to_string, encoded_list())). -define(SIZE, 10000). -define(N, 1000). @@ -223,76 +253,81 @@ mbb(N, Acc) -> lists:reverse(Acc, B). simple(Config) when is_list(Config) -> - do_tests(simple, single_small). + comment(do_tests(simple, single_small, Config)). simple_timer(Config) when is_list(Config) -> - do_tests(simple_timer, single_small). + comment(do_tests(simple_timer, single_small, Config)). simple_mon(Config) when is_list(Config) -> - do_tests(simple_mon, single_small). + comment(do_tests(simple_mon, single_small, Config)). simple_timer_mon(Config) when is_list(Config) -> - do_tests(simple_timer_mon, single_small). + comment(do_tests(simple_timer_mon, single_small, Config)). generic(Config) when is_list(Config) -> - do_tests(generic, single_small). + comment(do_tests(generic, single_small, Config)). generic_timer(Config) when is_list(Config) -> - do_tests(generic_timer, single_small). + comment(do_tests(generic_timer, single_small, Config)). + +generic_statem(Config) when is_list(Config) -> + comment(do_tests(generic_statem, single_small, Config)). + +generic_statem_transit(Config) when is_list(Config) -> + comment(do_tests(generic_statem_transit, single_small, Config)). + +generic_statem_complex(Config) when is_list(Config) -> + comment(do_tests(generic_statem_complex, single_small, Config)). + +generic_fsm(Config) when is_list(Config) -> + comment(do_tests(generic_fsm, single_small, Config)). + +generic_fsm_transit(Config) when is_list(Config) -> + comment(do_tests(generic_fsm_transit, single_small, Config)). single_small(Config) when is_list(Config) -> - comparison(single_small). + comparison(?config(cases, Config), single_small, Config). single_medium(Config) when is_list(Config) -> - comparison(single_medium). + comparison(?config(cases, Config), single_medium, Config). single_big(Config) when is_list(Config) -> - comparison(single_big). + comparison(?config(cases, Config), single_big, Config). sched_small(Config) when is_list(Config) -> - comparison(sched_small). + comparison(?config(cases, Config), sched_small, Config). sched_medium(Config) when is_list(Config) -> - comparison(sched_medium). + comparison(?config(cases, Config), sched_medium, Config). sched_big(Config) when is_list(Config) -> - comparison(sched_big). + comparison(?config(cases, Config), sched_big, Config). multi_small(Config) when is_list(Config) -> - comparison(multi_small). + comparison(?config(cases, Config), multi_small, Config). multi_medium(Config) when is_list(Config) -> - comparison(multi_medium). + comparison(?config(cases, Config), multi_medium, Config). multi_big(Config) when is_list(Config) -> - comparison(multi_big). - -comparison(Kind) -> - Simple0 = do_tests(simple, Kind), - SimpleTimer0 = do_tests(simple_timer, Kind), - SimpleMon0 = do_tests(simple_mon, Kind), - SimpleTimerMon0 = do_tests(simple_timer_mon, Kind), - Generic0 = do_tests(generic, Kind), - GenericTimer0 = do_tests(generic_timer, Kind), - %% Normalize - Simple = norm(Simple0, Simple0), - SimpleTimer = norm(SimpleTimer0, Simple0), - SimpleMon = norm(SimpleMon0, Simple0), - SimpleTimerMon = norm(SimpleTimerMon0, Simple0), - Generic = norm(Generic0, Simple0), - GenericTimer = norm(GenericTimer0, Simple0), + comparison(?config(cases, Config), multi_big, Config). + +comparison(Cases, Kind, Config) -> + Cases = ?config(cases, Config), + [RefResult|_] = Results = + [do_tests(Case, Kind, Config) || Case <- Cases], + Normalized = [norm(Result, RefResult) || Result <- Results], {Parallelism, Message} = bench_params(Kind), Wordsize = erlang:system_info(wordsize), MSize = Wordsize * erts_debug:flat_size(Message), What = io_lib:format("#parallel gen_server instances: ~.4w, " "message flat size: ~.5w bytes", [Parallelism, MSize]), - C = io_lib:format("~s: " - "Simple: ~s Simple+Timer: ~s " - "Simple+Monitor: ~s Simple+Timer+Monitor: ~s " - "Generic: ~s Generic+Timer: ~s", - [What, Simple, SimpleTimer, SimpleMon, SimpleTimerMon, - Generic, GenericTimer]), + Format = + lists:flatten( + ["~s: "] ++ + [[atom_to_list(Case),": ~s "] || Case <- Cases]), + C = lists:flatten(io_lib:format(Format, [What] ++ Normalized)), {comment, C}. norm(T, Ref) -> @@ -302,15 +337,17 @@ norm(T, Ref) -> -define(MAX_TIME, 1000 * ?MAX_TIME_SECS). % ms -define(CALLS_PER_LOOP, 5). -do_tests(Test, ParamSet) -> +do_tests(Test, ParamSet, Config) -> + BenchmarkSuite = ?config(benchmark_suite, Config), {Client, ServerMod} = bench(Test), {Parallelism, Message} = bench_params(ParamSet), Fun = create_clients(Message, ServerMod, Client, Parallelism), {TotalLoops, AllPidTime} = run_test(Fun), PerSecond = ?CALLS_PER_LOOP * round((1000 * TotalLoops) / AllPidTime), - ct_event:notify(#event{name = benchmark_data, - data = [{suite,"stdlib_gen_server"}, - {value,PerSecond}]}), + ct_event:notify( + #event{ + name = benchmark_data, + data = [{suite,BenchmarkSuite},{value,PerSecond}]}), PerSecond. -define(COUNTER, n). @@ -369,6 +406,51 @@ generic_timer_client(N, M, P) -> _ = generic_server_timer:reply(P, M), generic_timer_client(N+1, M, P). +generic_statem_client(N, M, P) -> + put(?COUNTER, N), + _ = generic_statem:reply(P, M), + _ = generic_statem:reply(P, M), + _ = generic_statem:reply(P, M), + _ = generic_statem:reply(P, M), + _ = generic_statem:reply(P, M), + generic_statem_client(N+1, M, P). + +generic_statem_transit_client(N, M, P) -> + put(?COUNTER, N), + _ = generic_statem:transit(P, M), + _ = generic_statem:transit(P, M), + _ = generic_statem:transit(P, M), + _ = generic_statem:transit(P, M), + _ = generic_statem:transit(P, M), + generic_statem_transit_client(N+1, M, P). + +generic_statem_complex_client(N, M, P) -> + put(?COUNTER, N), + _ = generic_statem:reply(P, M), + _ = generic_statem:reply(P, M), + _ = generic_statem:reply(P, M), + _ = generic_statem:reply(P, M), + _ = generic_statem:reply(P, M), + generic_statem_complex_client(N+1, M, P). + +generic_fsm_client(N, M, P) -> + put(?COUNTER, N), + _ = generic_fsm:reply(P, M), + _ = generic_fsm:reply(P, M), + _ = generic_fsm:reply(P, M), + _ = generic_fsm:reply(P, M), + _ = generic_fsm:reply(P, M), + generic_fsm_client(N+1, M, P). + +generic_fsm_transit_client(N, M, P) -> + put(?COUNTER, N), + _ = generic_fsm:transit(P, M), + _ = generic_fsm:transit(P, M), + _ = generic_fsm:transit(P, M), + _ = generic_fsm:transit(P, M), + _ = generic_fsm:transit(P, M), + generic_fsm_transit_client(N+1, M, P). + bench(simple) -> {fun simple_client/3, simple_server}; bench(simple_timer) -> @@ -380,7 +462,17 @@ bench(simple_timer_mon) -> bench(generic) -> {fun generic_client/3, generic_server}; bench(generic_timer) -> - {fun generic_timer_client/3, generic_server_timer}. + {fun generic_timer_client/3, generic_server_timer}; +bench(generic_statem) -> + {fun generic_statem_client/3, generic_statem}; +bench(generic_statem_transit) -> + {fun generic_statem_transit_client/3, generic_statem}; +bench(generic_statem_complex) -> + {fun generic_statem_complex_client/3, generic_statem_complex}; +bench(generic_fsm) -> + {fun generic_fsm_client/3, generic_fsm}; +bench(generic_fsm_transit) -> + {fun generic_fsm_transit_client/3, generic_fsm}. %% -> {Parallelism, MessageTerm} bench_params(single_small) -> {1, small()}; diff --git a/lib/stdlib/test/stdlib_bench_SUITE_data/generic_fsm.erl b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_fsm.erl new file mode 100644 index 0000000000..50f7df7a2a --- /dev/null +++ b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_fsm.erl @@ -0,0 +1,59 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% 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 +%% +%% 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% +%% +-module(generic_fsm). + +-export([start/1, reply/2, transit/2, stop/1]). + +-export([init/1, terminate/3]). +-export([state1/3, state2/3]). + +-behaivour(gen_fsm). + + +%% API + +start(Data) -> + {ok, Pid} = gen_fsm:start(?MODULE, Data, []), + Pid. + +stop(P) -> + ok = gen_fsm:stop(P). + +reply(S, M) -> + gen_fsm:sync_send_event(S, {reply, M}, infinity). + +transit(S, M) -> + gen_fsm:sync_send_event(S, {transit, M}, infinity). + +%% Implementation + +init(Data) -> + {ok, state1, Data}. + +terminate(_Reason, _State, _Data) -> + ok. + +state1({reply, M}, _From, Data) -> + {reply, M, ?FUNCTION_NAME, Data}; +state1({transit, M}, _From, Data) -> + {reply, M, state2, Data}. + +state2({transit, M}, _From, Data) -> + {reply, M, state1, Data}. diff --git a/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem.erl b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem.erl new file mode 100644 index 0000000000..2e0491f060 --- /dev/null +++ b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem.erl @@ -0,0 +1,58 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% 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 +%% +%% 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% +%% +-module(generic_statem). + +-export([start/1, reply/2, transit/2, stop/1]). + +-export([callback_mode/0, init/1]). +-export([state1/3, state2/3]). + +-behaviour(gen_statem). + +%% API + +start(Data) -> + {ok, Pid} = gen_statem:start(?MODULE, Data, []), + Pid. + +stop(P) -> + ok = gen_statem:stop(P). + +reply(S, M) -> + gen_statem:call(S, {reply, M}, infinity). + +transit(S, M) -> + gen_statem:call(S, {transit, M}, infinity). + +%% Implementation + +callback_mode() -> + state_functions. + +init(Data) -> + {ok, state1, Data}. + +state1({call, From}, {reply, M}, Data) -> + {keep_state, Data, {reply, From, M}}; +state1({call, From}, {transit, M}, Data) -> + {next_state, state2, Data, {reply, From, M}}. + +state2({call, From}, {transit, M}, Data) -> + {next_state, state1, Data, {reply, From, M}}. diff --git a/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem_complex.erl b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem_complex.erl new file mode 100644 index 0000000000..983227d281 --- /dev/null +++ b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem_complex.erl @@ -0,0 +1,66 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% 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 +%% +%% 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% +%% +-module(generic_statem_complex). + +-export([start/1, reply/2, stop/1]). + +-export([callback_mode/0, init/1]). +-export([state1/3, state2/3, state3/3]). + +-behaviour(gen_statem). + +%% API + +start(Data) -> + {ok, Pid} = gen_statem:start(?MODULE, Data, []), + Pid. + +stop(P) -> + ok = gen_statem:stop(P). + +reply(S, M) -> + gen_statem:call(S, {reply, M}, infinity). + +%% Implementation + +callback_mode() -> + [state_functions,state_enter]. + +init(Data) -> + {ok, state1, Data}. + +state1(enter, _, Data) -> + {keep_state, Data, + {state_timeout, 5000, t1}}; +state1({call, _From}, {reply, _M}, Data) -> + {next_state, state2, Data, + [postpone,{next_event,internal,e}]}. + +state2(enter, _, _Data) -> + keep_state_and_data; +state2(internal, e, Data) -> + {next_state, state3, Data}. + +state3(enter, _, Data) -> + {keep_state, Data, + {state_timeout, 5000, t3}}; +state3({call, From}, {reply, M}, Data) -> + {next_state, state1, Data, + {reply, From, M}}. -- cgit v1.2.3 From 5a2f606671664a0bfa2aea810e49e0c3396e9b3d Mon Sep 17 00:00:00 2001 From: Raimo Niskanen Date: Fri, 19 Jan 2018 10:51:12 +0100 Subject: Dodge divide by zero --- lib/stdlib/test/stdlib_bench_SUITE.erl | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'lib/stdlib/test') diff --git a/lib/stdlib/test/stdlib_bench_SUITE.erl b/lib/stdlib/test/stdlib_bench_SUITE.erl index 2ce089dbb7..294898a932 100644 --- a/lib/stdlib/test/stdlib_bench_SUITE.erl +++ b/lib/stdlib/test/stdlib_bench_SUITE.erl @@ -331,7 +331,12 @@ comparison(Cases, Kind, Config) -> {comment, C}. norm(T, Ref) -> - io_lib:format("~.2f", [Ref/T]). + try Ref / T of + Norm -> + io_lib:format("~.2f", [Norm]) + catch error:badarith -> + "---" + end. -define(MAX_TIME_SECS, 3). % s -define(MAX_TIME, 1000 * ?MAX_TIME_SECS). % ms -- cgit v1.2.3