diff options
Diffstat (limited to 'erts/emulator/test')
| -rw-r--r-- | erts/emulator/test/Makefile | 3 | ||||
| -rw-r--r-- | erts/emulator/test/emulator_node_container_SUITE.spec | 2 | ||||
| -rw-r--r-- | erts/emulator/test/erts_debug_SUITE.erl | 14 | ||||
| -rw-r--r-- | erts/emulator/test/scheduler_SUITE.erl | 78 |
4 files changed, 78 insertions, 19 deletions
diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile index 5478932b13..186f9fef8d 100644 --- a/erts/emulator/test/Makefile +++ b/erts/emulator/test/Makefile @@ -157,7 +157,8 @@ EMAKEFILE=Emakefile TEST_SPEC_FILES= emulator.spec \ emulator.spec.win \ emulator_bench.spec \ - emulator_smoke.spec + emulator_smoke.spec \ + emulator_node_container_SUITE.spec # ---------------------------------------------------- # Release directory specification diff --git a/erts/emulator/test/emulator_node_container_SUITE.spec b/erts/emulator/test/emulator_node_container_SUITE.spec new file mode 100644 index 0000000000..77c28ba7ae --- /dev/null +++ b/erts/emulator/test/emulator_node_container_SUITE.spec @@ -0,0 +1,2 @@ +{enable_builtin_hooks, false}. +{suites,"../emulator_test",node_container_SUITE}. diff --git a/erts/emulator/test/erts_debug_SUITE.erl b/erts/emulator/test/erts_debug_SUITE.erl index 23871585f7..c9c664de38 100644 --- a/erts/emulator/test/erts_debug_SUITE.erl +++ b/erts/emulator/test/erts_debug_SUITE.erl @@ -23,14 +23,15 @@ -export([all/0, suite/0, test_size/1,flat_size_big/1,df/1,term_type/1, - instructions/1]). + instructions/1, stack_check/1]). suite() -> [{ct_hooks,[ts_install_cth]}, {timetrap, {minutes, 2}}]. all() -> - [test_size, flat_size_big, df, instructions, term_type]. + [test_size, flat_size_big, df, instructions, term_type, + stack_check]. test_size(Config) when is_list(Config) -> ConsCell1 = id([a|b]), @@ -181,6 +182,15 @@ df(Config) when is_list(Config) -> true = (P0 == pps()), ok. +stack_check(Config) when is_list(Config) -> + erts_debug:set_internal_state(available_internal_state,true), + %% Recurses on the C stack until stacklimit is reached. That + %% is, tests that the stack limit functionality works (used + %% by PCRE). VM will crash if it doesn't work... + Size = erts_debug:get_internal_state(stack_check), + erts_debug:set_internal_state(available_internal_state,false), + {comment, "Stack size: "++integer_to_list(Size)++" bytes"}. + df_smoke([M|Ms]) -> io:format("~p", [M]), erts_debug:df(M), diff --git a/erts/emulator/test/scheduler_SUITE.erl b/erts/emulator/test/scheduler_SUITE.erl index b178dede5b..885298ce34 100644 --- a/erts/emulator/test/scheduler_SUITE.erl +++ b/erts/emulator/test/scheduler_SUITE.erl @@ -807,21 +807,31 @@ update_cpu_info(Config) when is_list(Config) -> %% Nothing much to test; just a smoke test ok; Onln0 -> - %% unset least significant bit - Aff = (OldAff band (OldAff - 1)), - set_affinity_mask(Aff), - Onln1 = Avail - 1, - case adjust_schedulers_online() of - {Onln0, Onln1} -> - Onln1 = erlang:system_info(schedulers_online), - receive after 500 -> ok end, - io:format("TEST - Affinity mask: ~p - Schedulers online: ~p - Scheduler bindings: ~p~n", - [Aff, Onln1, erlang:system_info(scheduler_bindings)]), - unchanged = adjust_schedulers_online(), - ok; - Fail -> - ct:fail(Fail) - end + Cpus = bits_in_mask(OldAff), + RmCpus = case Cpus > Onln0 of + true -> Cpus - Onln0 + 1; + false -> Onln0 - Cpus + 1 + end, + Onln1 = Cpus - RmCpus, + case Onln1 > 0 of + false -> + %% Nothing much to test; just a smoke test + ok; + true -> + Aff = restrict_affinity_mask(OldAff, RmCpus), + set_affinity_mask(Aff), + case adjust_schedulers_online() of + {Onln0, Onln1} -> + Onln1 = erlang:system_info(schedulers_online), + receive after 500 -> ok end, + io:format("TEST - Affinity mask: ~p - Schedulers online: ~p - Scheduler bindings: ~p~n", + [Aff, Onln1, erlang:system_info(scheduler_bindings)]), + unchanged = adjust_schedulers_online(), + ok; + Fail -> + ct:fail(Fail) + end + end end after set_affinity_mask(OldAff), @@ -835,13 +845,49 @@ update_cpu_info(Config) when is_list(Config) -> end end. +bits_in_mask(Mask) -> + bits_in_mask(Mask, 0, 0). + +bits_in_mask(0, Shift, N) -> + N; +bits_in_mask(Mask, Shift, N) -> + case Mask band (1 bsl Shift) of + 0 -> bits_in_mask(Mask, Shift+1, N); + _ -> bits_in_mask(Mask band (bnot (1 bsl Shift)), + Shift+1, N+1) + end. + +restrict_affinity_mask(Mask, N) -> + try + restrict_affinity_mask(Mask, 0, N) + catch + throw : Reason -> + exit({Reason, Mask, N}) + end. + +restrict_affinity_mask(Mask, _Shift, 0) -> + Mask; +restrict_affinity_mask(0, _Shift, _N) -> + throw(overresticted_affinity_mask); +restrict_affinity_mask(Mask, Shift, N) -> + case Mask band (1 bsl Shift) of + 0 -> restrict_affinity_mask(Mask, Shift+1, N); + _ -> restrict_affinity_mask(Mask band (bnot (1 bsl Shift)), + Shift+1, N-1) + end. + adjust_schedulers_online() -> case erlang:system_info(update_cpu_info) of unchanged -> unchanged; changed -> Avail = erlang:system_info(logical_processors_available), - {erlang:system_flag(schedulers_online, Avail), Avail} + Scheds = erlang:system_info(schedulers), + SOnln = case Avail > Scheds of + true -> Scheds; + false -> Avail + end, + {erlang:system_flag(schedulers_online, SOnln), SOnln} end. read_affinity(Data) -> |