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authorSverker Eriksson <[email protected]>2018-01-29 18:33:12 +0100
committerGitHub <[email protected]>2018-01-29 18:33:12 +0100
commitfc6eb93ae081ac5ebf715e53d0d2519067fcea95 (patch)
tree3f070e6b82c4c260a7ef2099109939cecaba9bdd /lib/runtime_tools/test
parentb73e87f5de895860337c0d30473edd1e59667baa (diff)
parent0359cdc8552ad056e976a8c097624b4305ef6755 (diff)
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Merge PR-1639 from sverker/scheduler_utilization OTP-14904
runtime_tools: Add scheduler module
Diffstat (limited to 'lib/runtime_tools/test')
-rw-r--r--lib/runtime_tools/test/Makefile1
-rw-r--r--lib/runtime_tools/test/scheduler_SUITE.erl104
2 files changed, 105 insertions, 0 deletions
diff --git a/lib/runtime_tools/test/Makefile b/lib/runtime_tools/test/Makefile
index 61377ea09e..de37b2570d 100644
--- a/lib/runtime_tools/test/Makefile
+++ b/lib/runtime_tools/test/Makefile
@@ -9,6 +9,7 @@ MODULES = \
system_information_SUITE \
dbg_SUITE \
erts_alloc_config_SUITE \
+ scheduler_SUITE \
msacc_SUITE
ERL_FILES= $(MODULES:%=%.erl)
diff --git a/lib/runtime_tools/test/scheduler_SUITE.erl b/lib/runtime_tools/test/scheduler_SUITE.erl
new file mode 100644
index 0000000000..1c80253371
--- /dev/null
+++ b/lib/runtime_tools/test/scheduler_SUITE.erl
@@ -0,0 +1,104 @@
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 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(scheduler_SUITE).
+
+-export([suite/0, all/0]).
+
+%% Test cases
+-export([basic/1]).
+
+all() -> [basic].
+
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+
+basic(_Config) ->
+ S1 = scheduler:sample(),
+ S2 = scheduler:sample_all(),
+
+ check(scheduler:utilization(1)),
+
+ check(scheduler:utilization(S1)),
+ check(scheduler:utilization(S2)),
+ check(scheduler:utilization(S1, scheduler:sample())),
+ check(scheduler:utilization(S2, scheduler:sample())),
+
+ S3 = scheduler:sample_all(),
+ U13 = scheduler:utilization(S1, S3),
+ U13 = scheduler:utilization(S1, remove_io(S3)),
+ check(U13),
+
+ U23all = scheduler:utilization(S2, S3),
+ check(U23all),
+ U23 = scheduler:utilization(S2, remove_io(S3)),
+ U23 = scheduler:utilization(remove_io(S2), S3),
+ U23 = remove_io(U23all),
+ check(U23),
+
+ ok.
+
+
+check([{total, Tf, Ts} | List]=U) ->
+ io:format("\nU = ~p\n", [U]),
+ check_values(Tf, Ts, true),
+
+ SchdList = case hd(List) of
+ {weighted, Wf, Ws} ->
+ check_values(Wf, Ws, false),
+ tl(List);
+ _ ->
+ unknown = erlang:system_info(logical_processors_available),
+ List
+ end,
+
+ lists:foreach(fun({Type, Id, F, S}) when ((Type =:= normal) or (Type =:= cpu) or (Type =:= io)),
+ is_integer(Id) ->
+ check_values(F, S, true)
+ end,
+ SchdList),
+ ok.
+
+check_values(F, S, Max100) ->
+ true = is_float(F),
+ true = F >= 0.0,
+
+ $% = lists:last(S),
+ Sf = list_to_float(lists:droplast(S)),
+ true = Sf >= 0.0,
+ true = case Max100 of
+ true ->
+ true = F =< 1.0,
+ true = Sf =< 100.0;
+ false ->
+ true
+ end,
+ MaxDiff = 0.055555555555555555, %% change to 0.05 when float_to_list/2 is fixed
+ true = abs(F*100 - Sf) =< MaxDiff,
+ ok.
+
+
+remove_io({scheduler_wall_time_all,Lst}) ->
+ {scheduler_wall_time, remove_io(Lst)};
+remove_io(Lst) ->
+ lists:filter(fun({io,_,_,_}) -> false;
+ (_) -> true end,
+ Lst).