%%
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%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
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%% 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
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%% http://www.apache.org/licenses/LICENSE-2.0
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%% distributed under the License is distributed on an "AS IS" BASIS,
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%% %CopyrightEnd%
%%
-module(eprof_SUITE).
-include_lib("common_test/include/ct.hrl").
-export([all/0, suite/0]).
-export([tiny/1,eed/1,basic/1,basic_option/1]).
suite() ->
[{ct_hooks,[ts_install_cth]},
{timetrap,{seconds,60}}].
all() ->
[basic, basic_option, tiny, eed].
basic(suite) -> [];
basic(Config) when is_list(Config) ->
%% load eprof_test and change directory
{ok, OldCurDir} = file:get_cwd(),
Datadir = ?config(data_dir, Config),
Privdir = ?config(priv_dir, Config),
{ok,eprof_test} = compile:file(filename:join(Datadir, "eprof_test"),
[trace,{outdir, Privdir}]),
ok = file:set_cwd(Privdir),
code:purge(eprof_test),
{module,eprof_test} = code:load_file(eprof_test),
%% rootset profiling
ensure_eprof_stopped(),
profiling = eprof:profile([self()]),
{error, already_profiling} = eprof:profile([self()]),
profiling_stopped = eprof:stop_profiling(),
profiling_already_stopped = eprof:stop_profiling(),
profiling = eprof:start_profiling([self(),self(),self()]),
profiling_stopped = eprof:stop_profiling(),
%% with patterns
profiling = eprof:start_profiling([self()], {?MODULE, '_', '_'}),
{error, already_profiling} = eprof:start_profiling([self()], {?MODULE, '_', '_'}),
profiling_stopped = eprof:stop_profiling(),
profiling = eprof:start_profiling([self()], {?MODULE, start_stop, '_'}),
profiling_stopped = eprof:stop_profiling(),
profiling = eprof:start_profiling([self()], {?MODULE, start_stop, 1}),
profiling_stopped = eprof:stop_profiling(),
%% with fun
{ok, _} = eprof:profile(fun() -> eprof_test:go(10) end),
profiling = eprof:profile([self()]),
{error, already_profiling} = eprof:profile(fun() -> eprof_test:go(10) end),
profiling_stopped = eprof:stop_profiling(),
{ok, _} = eprof:profile(fun() -> eprof_test:go(10) end),
{ok, _} = eprof:profile([], fun() -> eprof_test:go(10) end),
Pid = whereis(eprof),
{ok, _} = eprof:profile(erlang:processes() -- [Pid], fun() -> eprof_test:go(10) end),
{ok, _} = eprof:profile([], fun() -> eprof_test:go(10) end, {eprof_test, '_', '_'}),
{ok, _} = eprof:profile([], fun() -> eprof_test:go(10) end, {eprof_test, go, '_'}),
{ok, _} = eprof:profile([], fun() -> eprof_test:go(10) end, {eprof_test, go, 1}),
{ok, _} = eprof:profile([], fun() -> eprof_test:go(10) end, {eprof_test, dec, 1}),
%% error case
error = eprof:profile([Pid], fun() -> eprof_test:go(10) end),
Pid = whereis(eprof),
error = eprof:profile([Pid], fun() -> eprof_test:go(10) end),
A = spawn(fun() -> receive _ -> ok end end),
profiling = eprof:profile([A]),
true = exit(A, kill_it),
profiling_stopped = eprof:stop_profiling(),
{error,_} = eprof:profile(fun() -> a = id(b) end),
%% with mfa
{ok, _} = eprof:profile([], eprof_test, go, [10]),
{ok, _} = eprof:profile([], eprof_test, go, [10], {eprof_test, dec, 1}),
%% dump
{ok, _} = eprof:profile([], fun() -> eprof_test:go(10) end, {eprof_test, '_', '_'}),
[{_, Mfas}] = eprof:dump(),
Dec_mfa = {eprof_test, dec, 1},
Go_mfa = {eprof_test, go, 1},
{value, {Go_mfa, { 1, _Time1}}} = lists:keysearch(Go_mfa, 1, Mfas),
{value, {Dec_mfa, {11, _Time2}}} = lists:keysearch(Dec_mfa, 1, Mfas),
%% change current working directory
ok = file:set_cwd(OldCurDir),
stopped = eprof:stop(),
ok.
basic_option(Config) when is_list(Config) ->
%% Eprof is not supported on native-compile code.
case lists:module_info(native_addresses) of
[] -> basic_option_1(Config);
[_|_] -> {skip,"lists is native-compiled"}
end.
basic_option_1(Config) ->
%% load eprof_test and change directory
{ok, OldCurDir} = file:get_cwd(),
Datadir = ?config(data_dir, Config),
Privdir = ?config(priv_dir, Config),
{ok,eprof_test} = compile:file(filename:join(Datadir, "eprof_test"),
[trace,{outdir, Privdir}]),
ok = file:set_cwd(Privdir),
code:purge(eprof_test),
{module,eprof_test} = code:load_file(eprof_test),
% vanilla
{ok, _} = eprof:profile(fun() -> eprof_test:do(10) end, [{set_on_spawn, true}]),
Mfas1 = lists:foldl(fun({_,Mfas},Out) -> Mfas ++ Out end, [], eprof:dump()),
{value, {_, {11, _}}} = lists:keysearch({eprof_test,dec,1}, 1, Mfas1),
{value, {_, { 1, _}}} = lists:keysearch({eprof_test, go,1}, 1, Mfas1),
{value, {_, { 9, _}}} = lists:keysearch({lists, split_2,5}, 1, Mfas1),
{value, {_, { 4, _}}} = lists:keysearch({lists, seq_loop,3}, 1, Mfas1),
{ok, _} = eprof:profile(fun() -> eprof_test:do(10) end, [set_on_spawn]),
Mfas2 = lists:foldl(fun({_,Mfas},Out) -> Mfas ++ Out end, [], eprof:dump()),
{value, {_, {11, _}}} = lists:keysearch({eprof_test,dec,1}, 1, Mfas2),
{value, {_, { 1, _}}} = lists:keysearch({eprof_test, go,1}, 1, Mfas2),
{value, {_, { 9, _}}} = lists:keysearch({lists, split_2,5}, 1, Mfas2),
{value, {_, { 4, _}}} = lists:keysearch({lists, seq_loop,3}, 1, Mfas2),
% disable trace set_on_spawn
{ok, _} = eprof:profile(fun() -> eprof_test:do(10) end, []),
[{_, Mfas3}] = eprof:dump(),
{value, {_, {11, _}}} = lists:keysearch({eprof_test,dec,1}, 1, Mfas3),
{value, {_, { 1, _}}} = lists:keysearch({eprof_test, go,1}, 1, Mfas3),
false = lists:keysearch({lists, split_2,5}, 1, Mfas3),
false = lists:keysearch({lists, seq_loop,3}, 1, Mfas3),
%% change current working directory
ok = file:set_cwd(OldCurDir),
stopped = eprof:stop(),
ok.
tiny(suite) -> [];
tiny(Config) when is_list(Config) ->
ensure_eprof_stopped(),
{ok, OldCurDir} = file:get_cwd(),
Datadir = ?config(data_dir, Config),
Privdir = ?config(priv_dir, Config),
% (Trace)Compile to priv_dir and make sure the correct version is loaded.
{ok,eprof_suite_test} = compile:file(filename:join(Datadir,
"eprof_suite_test"),
[trace,{outdir, Privdir}]),
ok = file:set_cwd(Privdir),
code:purge(eprof_suite_test),
{module,eprof_suite_test} = code:load_file(eprof_suite_test),
{ok,_Pid} = eprof:start(),
nothing_to_analyze = eprof:analyze(),
nothing_to_analyze = eprof:analyze(total),
eprof:profile([], eprof_suite_test, test, [Config]),
ok = eprof:analyze(),
ok = eprof:analyze(total),
ok = eprof:log("eprof_SUITE_logfile"),
stopped = eprof:stop(),
ok = file:set_cwd(OldCurDir),
ok.
eed(suite) -> [];
eed(Config) when is_list(Config) ->
ensure_eprof_stopped(),
Datadir = ?config(data_dir, Config),
Privdir = ?config(priv_dir, Config),
ct:timetrap({minutes, 5}),
%% (Trace)Compile to priv_dir and make sure the correct version is loaded.
code:purge(eed),
{ok,eed} = c:c(filename:join(Datadir, "eed"), [trace,{outdir,Privdir}]),
{ok,_Pid} = eprof:start(),
Script = filename:join(Datadir, "ed.script"),
ok = file:set_cwd(Datadir),
{T1,_} = statistics(runtime),
ok = eed:file(Script),
ok = eed:file(Script),
ok = eed:file(Script),
ok = eed:file(Script),
ok = eed:file(Script),
ok = eed:file(Script),
ok = eed:file(Script),
ok = eed:file(Script),
ok = eed:file(Script),
ok = eed:file(Script),
{T2,_} = statistics(runtime),
{ok,ok} = eprof:profile([], eed, file, [Script]),
{T3,_} = statistics(runtime),
profiling_already_stopped = eprof:stop_profiling(),
ok = eprof:analyze(),
ok = eprof:analyze(total),
ok = eprof:log("eprof_SUITE_logfile"),
stopped = eprof:stop(),
try
S = lists:flatten(io_lib:format("~p times slower",
[10*(T3-T2)/(T2-T1)])),
{comment,S}
catch
error:badarith ->
{comment,"No time elapsed. Bad clock? Fast computer?"}
end.
ensure_eprof_stopped() ->
Pid = whereis(eprof),
case whereis(eprof) of
undefined ->
ok;
Pid ->
stopped=eprof:stop()
end.
id(I) -> I.
