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-rw-r--r--erts/emulator/beam/erl_bif_info.c8
-rw-r--r--erts/emulator/beam/erl_db.c30
-rw-r--r--erts/emulator/beam/erl_db.h2
-rw-r--r--erts/emulator/beam/erl_db_hash.c43
-rw-r--r--erts/emulator/beam/erl_db_hash.h2
-rw-r--r--lib/stdlib/test/ets_SUITE.erl34
6 files changed, 110 insertions, 9 deletions
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 3fb866733c..abf20a90e4 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -3547,6 +3547,10 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
size_t words = (sizeof(DbTable) + sizeof(Uint) - 1)/sizeof(Uint);
BIF_RET(make_small((Uint) words));
}
+ else if (ERTS_IS_ATOM_STR("DbTable_meta", BIF_ARG_1)) {
+ /* Used by ets_SUITE (stdlib) */
+ BIF_RET(erts_ets_get_meta_state(BIF_P));
+ }
else if (ERTS_IS_ATOM_STR("check_io_debug", BIF_ARG_1)) {
/* Used by driver_SUITE (emulator) */
Uint sz, *szp;
@@ -4280,6 +4284,10 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
}
BIF_RET(am_ok);
}
+ else if (ERTS_IS_ATOM_STR("DbTable_meta", BIF_ARG_1)) {
+ /* Used by ets_SUITE (stdlib) */
+ BIF_RET(erts_ets_restore_meta_state(BIF_P, BIF_ARG_2));
+ }
}
BIF_ERROR(BIF_P, BADARG);
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index bad34211a5..df4e34511f 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -3978,6 +3978,36 @@ erts_ets_colliding_names(Process* p, Eterm name, Uint cnt)
return list;
}
+/*
+ * For testing only
+ * Retreive meta table size state
+ */
+Eterm erts_ets_get_meta_state(Process* p)
+{
+ Eterm* hp = HAlloc(p, 3);
+ return TUPLE2(hp,
+ erts_ets_hash_get_memstate(p, &meta_pid_to_tab->hash),
+ erts_ets_hash_get_memstate(p, &meta_pid_to_fixed_tab->hash));
+}
+/*
+ * For testing only
+ * Restore a previously retrieved meta table size state.
+ * We do this to suppress failed memory checks
+ * caused by the hysteresis of meta tables grow/shrink limits.
+ */
+Eterm erts_ets_restore_meta_state(Process* p, Eterm meta_state)
+{
+ Eterm* tv;
+ Eterm* hp;
+ if (!is_tuple_arity(meta_state, 2))
+ return am_badarg;
+
+ tv = tuple_val(meta_state);
+ hp = HAlloc(p, 3);
+ return TUPLE2(hp,
+ erts_ets_hash_restore_memstate(&meta_pid_to_tab->hash, tv[1]),
+ erts_ets_hash_restore_memstate(&meta_pid_to_fixed_tab->hash, tv[2]));
+}
#ifdef HARDDEBUG /* Here comes some debug functions */
diff --git a/erts/emulator/beam/erl_db.h b/erts/emulator/beam/erl_db.h
index 2f3c4a8e1b..f7eb3dc45c 100644
--- a/erts/emulator/beam/erl_db.h
+++ b/erts/emulator/beam/erl_db.h
@@ -90,6 +90,8 @@ extern Export ets_select_continue_exp;
extern erts_smp_atomic_t erts_ets_misc_mem_size;
Eterm erts_ets_colliding_names(Process*, Eterm name, Uint cnt);
+Eterm erts_ets_get_meta_state(Process* p);
+Eterm erts_ets_restore_meta_state(Process* p, Eterm target_state);
Uint erts_db_get_max_tabs(void);
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c
index 1752ec5191..581b135233 100644
--- a/erts/emulator/beam/erl_db_hash.c
+++ b/erts/emulator/beam/erl_db_hash.c
@@ -2726,7 +2726,6 @@ static void shrink(DbTableHash* tb, int nactive)
done_resizing(tb);
}
-
/* Search a list of tuples for a matching key */
static HashDbTerm* search_list(DbTableHash* tb, Eterm key,
@@ -2977,6 +2976,48 @@ void db_calc_stats_hash(DbTableHash* tb, DbHashStats* stats)
stats->std_dev_expected = sqrt(stats->avg_chain_len * (1 - 1.0/NACTIVE(tb)));
stats->kept_items = kept_items;
}
+
+/* For testing only */
+Eterm erts_ets_hash_get_memstate(Process* p, DbTableHash* tb)
+{
+ Eterm seg_cnt;
+ while (!begin_resizing(tb))
+ /*spinn*/;
+
+ seg_cnt = make_small(SLOT_IX_TO_SEG_IX(tb->nslots));
+ done_resizing(tb);
+ return seg_cnt;
+}
+/* For testing only */
+Eterm erts_ets_hash_restore_memstate(DbTableHash* tb, Eterm memstate)
+{
+ int seg_cnt, target;
+ int nactive;
+
+ if (!is_small(memstate))
+ return make_small(__LINE__);
+
+ target = signed_val(memstate);
+ if (target < 1)
+ return make_small(__LINE__);
+ while (1) {
+ while (!begin_resizing(tb))
+ /*spin*/;
+ seg_cnt = SLOT_IX_TO_SEG_IX(tb->nslots);
+ nactive = NACTIVE(tb);
+ done_resizing(tb);
+
+ if (target == seg_cnt)
+ return am_ok;
+ if (IS_FIXED(tb))
+ return make_small(__LINE__);
+ if (target < seg_cnt)
+ shrink(tb, nactive);
+ else
+ grow(tb, nactive);
+ }
+}
+
#ifdef HARDDEBUG
void db_check_table_hash(DbTable *tbl)
diff --git a/erts/emulator/beam/erl_db_hash.h b/erts/emulator/beam/erl_db_hash.h
index 2d9b5e308a..e209037878 100644
--- a/erts/emulator/beam/erl_db_hash.h
+++ b/erts/emulator/beam/erl_db_hash.h
@@ -107,5 +107,7 @@ typedef struct {
}DbHashStats;
void db_calc_stats_hash(DbTableHash* tb, DbHashStats*);
+Eterm erts_ets_hash_get_memstate(Process*, DbTableHash* tb);
+Eterm erts_ets_hash_restore_memstate(DbTableHash* tb, Eterm memstate);
#endif /* _DB_HASH_H */
diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl
index 6835e745bc..ea555f9c39 100644
--- a/lib/stdlib/test/ets_SUITE.erl
+++ b/lib/stdlib/test/ets_SUITE.erl
@@ -218,7 +218,7 @@ memory_check_summary(_Config) ->
receive {get_failed_memchecks, FailedMemchecks} -> ok end,
io:format("Failed memchecks: ~p\n",[FailedMemchecks]),
NoFailedMemchecks = length(FailedMemchecks),
- if NoFailedMemchecks > 3 ->
+ if NoFailedMemchecks > 1 ->
ct:fail("Too many failed (~p) memchecks", [NoFailedMemchecks]);
true ->
ok
@@ -5728,27 +5728,45 @@ etsmem() ->
{Bl0+Bl,BlSz0+BlSz}
end, {0,0}, CS)
end},
- {Mem,AllTabs}.
+ {Mem,AllTabs, erts_debug:get_internal_state('DbTable_meta')}.
-verify_etsmem({MemInfo,AllTabs}) ->
+verify_etsmem(EtsMem) ->
wait_for_test_procs(),
+ verify_etsmem(EtsMem, false).
+
+verify_etsmem({MemInfo,AllTabs,MetaState}=EtsMem, Adjusted) ->
case etsmem() of
- {MemInfo,_} ->
+ {MemInfo,_,_} ->
io:format("Ets mem info: ~p", [MemInfo]),
case MemInfo of
{ErlMem,EtsAlloc} when ErlMem == notsup; EtsAlloc == undefined ->
%% Use 'erl +Mea max' to do more complete memory leak testing.
{comment,"Incomplete or no mem leak testing"};
_ ->
- ok
+ case Adjusted of
+ true ->
+ {comment, "Meta state adjusted"};
+ false ->
+ ok
+ end
end;
- {MemInfo2, AllTabs2} ->
+
+ {MemInfo2, AllTabs2, MetaState2} ->
io:format("Expected: ~p", [MemInfo]),
io:format("Actual: ~p", [MemInfo2]),
io:format("Changed tables before: ~p\n",[AllTabs -- AllTabs2]),
io:format("Changed tables after: ~p\n", [AllTabs2 -- AllTabs]),
- ets_test_spawn_logger ! {failed_memcheck, get('__ETS_TEST_CASE__')},
- {comment, "Failed memory check"}
+ io:format("Meta state before: ~p\n", [MetaState]),
+ io:format("Meta state after: ~p\n", [MetaState2]),
+ case {MetaState =:= MetaState2, Adjusted} of
+ {false, false} ->
+ io:format("Adjust meta state and retry...\n\n",[]),
+ {ok,ok} = erts_debug:set_internal_state('DbTable_meta', MetaState),
+ verify_etsmem(EtsMem, true);
+ _ ->
+ ets_test_spawn_logger ! {failed_memcheck, get('__ETS_TEST_CASE__')},
+ {comment, "Failed memory check"}
+ end
end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-26 09:50:34 +0000