aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/beam/erl_alloc.c4
-rw-r--r--erts/emulator/test/alloc_SUITE.erl82
-rw-r--r--erts/emulator/test/alloc_SUITE_data/allocator_test.h1
-rw-r--r--erts/emulator/test/alloc_SUITE_data/migration.c190
4 files changed, 231 insertions, 46 deletions
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index 0aa45acd82..c3f4fe5a63 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -3642,6 +3642,10 @@ UWord erts_alc_test(UWord op, UWord a1, UWord a2, UWord a3)
*(void**)a3 = orig_destroying_mbc;
return offset;
}
+ case 0xf17: {
+ ErtsAllocatorThrSpec_t* ts = &erts_allctr_thr_spec[ERTS_ALC_A_TEST];
+ return ts->allctr[0]->largest_mbc_size;
+ }
default:
break;
}
diff --git a/erts/emulator/test/alloc_SUITE.erl b/erts/emulator/test/alloc_SUITE.erl
index 866008e3e0..aa6a1fbcdc 100644
--- a/erts/emulator/test/alloc_SUITE.erl
+++ b/erts/emulator/test/alloc_SUITE.erl
@@ -65,7 +65,7 @@ end_per_group(_GroupName, Config) ->
init_per_testcase(Case, Config) when is_list(Config) ->
Dog = ?t:timetrap(?t:seconds(?DEFAULT_TIMETRAP_SECS)),
- [{watchdog, Dog},{testcase, Case}|Config].
+ [{watchdog, Dog}, {testcase, Case}, {debug,false} | Config].
end_per_testcase(_Case, Config) when is_list(Config) ->
Dog = ?config(watchdog, Config),
@@ -113,7 +113,13 @@ cpool(suite) -> [];
cpool(doc) -> [];
cpool(Cfg) -> ?line drv_case(Cfg).
-migration(Cfg) -> drv_case(Cfg, concurrent, "+MZe true").
+migration(Cfg) ->
+ case erlang:system_info(smp_support) of
+ true ->
+ drv_case(Cfg, concurrent, "+MZe true");
+ false ->
+ {skipped, "No smp"}
+ end.
erts_mmap(Config) when is_list(Config) ->
case {?t:os_type(), is_halfword_vm()} of
@@ -207,6 +213,7 @@ run_drv_case(Config, Mode) ->
File = filename:join(DataDir, CaseName),
{ok,CaseName,Bin} = compile:file(File, [binary,return_errors]),
{module,CaseName} = erlang:load_module(CaseName,Bin),
+ print_stats(CaseName),
ok = CaseName:init(File),
SlaveState = slave_init(CaseName),
@@ -218,6 +225,9 @@ run_drv_case(Config, Mode) ->
Result = concurrent(CaseName)
end,
+ wait_for_memory_deallocations(),
+ print_stats(CaseName),
+
true = erlang:delete_module(CaseName),
slave_end(SlaveState),
Result.
@@ -236,6 +246,41 @@ slave_init(_) -> [].
slave_end(Apps) ->
lists:foreach(fun (A) -> application:stop(A) end, Apps).
+wait_for_memory_deallocations() ->
+ try
+ erts_debug:set_internal_state(wait, deallocations)
+ catch
+ error:undef ->
+ erts_debug:set_internal_state(available_internal_state, true),
+ wait_for_memory_deallocations()
+ end.
+
+print_stats(migration) ->
+ {Btot,Ctot} = lists:foldl(fun({instance,Inr,Istats}, {Bacc,Cacc}) ->
+ {mbcs,MBCS} = lists:keyfind(mbcs, 1, Istats),
+ Btup = lists:keyfind(blocks, 1, MBCS),
+ Ctup = lists:keyfind(carriers, 1, MBCS),
+ io:format("{instance,~p,~p,~p}\n", [Inr, Btup, Ctup]),
+ {tuple_add(Bacc,Btup),tuple_add(Cacc,Ctup)};
+ (_, Acc) -> Acc
+ end,
+ {{blocks,0,0,0},{carriers,0,0,0}},
+ erlang:system_info({allocator,test_alloc})),
+
+ io:format("Number of blocks : ~p\n", [Btot]),
+ io:format("Number of carriers: ~p\n", [Ctot]);
+
+print_stats(_) -> ok.
+
+tuple_add(T1, T2) ->
+ list_to_tuple(lists:zipwith(fun(E1,E2) when is_number(E1), is_number(E2) ->
+ E1 + E2;
+ (A,A) ->
+ A
+ end,
+ tuple_to_list(T1), tuple_to_list(T2))).
+
+
one_shot(CaseName) ->
State = CaseName:start({1, 0, erlang:system_info(build_type)}),
Result0 = CaseName:run(State),
@@ -250,8 +295,10 @@ many_shot(CaseName, I, Mem) ->
Result1 = repeat_while(fun() ->
Result0 = CaseName:run(State),
handle_result(State, Result0)
- end),
+ end,
+ 10*1000, I),
CaseName:stop(State),
+ flush_log(),
Result1.
concurrent(CaseName) ->
@@ -272,11 +319,23 @@ concurrent(CaseName) ->
PRs),
ok.
-repeat_while(Fun) ->
- %%io:format("~p calls fun\n", [self()]),
- case Fun() of
- continue -> repeat_while(Fun);
- R -> R
+repeat_while(Fun, Timeout, I) ->
+ TRef = erlang:start_timer(Timeout, self(), timeout),
+ R = repeat_while_loop(Fun, TRef, I),
+ erlang:cancel_timer(TRef, [{async,true},{info,false}]),
+ R.
+
+repeat_while_loop(Fun, TRef, I) ->
+ receive
+ {timeout, TRef, timeout} ->
+ io:format("~p: Timeout, enough is enough.",[I]),
+ succeeded
+ after 0 ->
+ %%io:format("~p calls fun\n", [self()]),
+ case Fun() of
+ continue -> repeat_while_loop(Fun, TRef, I);
+ R -> R
+ end
end.
flush_log() ->
@@ -308,6 +367,12 @@ handle_result(_State, Result0) ->
end.
start_node(Config, Opts) when is_list(Config), is_list(Opts) ->
+ case ?config(debug,Config) of
+ true -> {ok, node()};
+ _ -> start_node_1(Config, Opts)
+ end.
+
+start_node_1(Config, Opts) ->
Pa = filename:dirname(code:which(?MODULE)),
Name = list_to_atom(atom_to_list(?MODULE)
++ "-"
@@ -318,6 +383,7 @@ start_node(Config, Opts) when is_list(Config), is_list(Opts) ->
++ integer_to_list(erlang:unique_integer([positive]))),
?t:start_node(Name, slave, [{args, Opts++" -pa "++Pa}]).
+stop_node(Node) when Node =:= node() -> ok;
stop_node(Node) ->
?t:stop_node(Node).
diff --git a/erts/emulator/test/alloc_SUITE_data/allocator_test.h b/erts/emulator/test/alloc_SUITE_data/allocator_test.h
index dd0227e725..97ee58cdad 100644
--- a/erts/emulator/test/alloc_SUITE_data/allocator_test.h
+++ b/erts/emulator/test/alloc_SUITE_data/allocator_test.h
@@ -157,5 +157,6 @@ typedef void* erts_cond;
#define ALLOC_TEST(S) ((void*) ALC_TEST1(0xf14, (S)))
#define FREE_TEST(P) ((void) ALC_TEST1(0xf15, (P)))
#define SET_TEST_MBC_USER_HEADER(SZ,CMBC,DMBC) ((int)ALC_TEST3(0xf16, (SZ), (CMBC), (DMBC)))
+#define GET_TEST_MBC_SIZE() ((int) ALC_TEST0(0xf17))
#endif
diff --git a/erts/emulator/test/alloc_SUITE_data/migration.c b/erts/emulator/test/alloc_SUITE_data/migration.c
index 9f6535c834..b006360043 100644
--- a/erts/emulator/test/alloc_SUITE_data/migration.c
+++ b/erts/emulator/test/alloc_SUITE_data/migration.c
@@ -27,6 +27,7 @@
#include <errno.h>
#endif
#include <stdio.h>
+#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "testcase_driver.h"
@@ -57,15 +58,52 @@ testcase_name(void)
return "migration";
}
-void
-testcase_cleanup(TestCaseState_t *tcs)
+/* Turns out random_r() is a nonstandard glibc extension.
+#define HAVE_RANDOM_R
+*/
+#ifdef HAVE_RANDOM_R
+
+typedef struct { struct random_data rnd; char rndbuf[32]; } MyRandState;
+
+static void myrand_init(MyRandState* mrs, unsigned int seed)
{
- enif_free(tcs->extra);
- tcs->extra = NULL;
+ int res;
+ memset(&mrs->rnd, 0, sizeof(mrs->rnd));
+ res = initstate_r(seed, mrs->rndbuf, sizeof(mrs->rndbuf), &mrs->rnd);
+ FATAL_ASSERT(res == 0);
+}
+
+static int myrand(MyRandState* mrs)
+{
+ int32_t x;
+ int res = random_r(&mrs->rnd, &x);
+ FATAL_ASSERT(res == 0);
+ return (int)x;
+}
+
+#else /* !HAVE_RANDOM_R */
+
+typedef unsigned int MyRandState;
+
+static void myrand_init(MyRandState* mrs, unsigned int seed)
+{
+ *mrs = seed;
+}
+
+static int myrand(MyRandState* mrs)
+{
+ /* Taken from rand(3) man page.
+ * Modified to return a full 31-bit value by using low half of *mrs as well.
+ */
+ *mrs = (*mrs) * 1103515245 + 12345;
+ return (int) (((*mrs >> 16) | (*mrs << 16)) & ~(1 << 31));
}
-#define MAX_BLOCK_PER_THR 100
-#define MAX_ROUNDS 10
+#endif /* !HAVE_RANDOM_R */
+
+#define MAX_BLOCK_PER_THR 200
+#define BLOCKS_PER_MBC 10
+#define MAX_ROUNDS 10000
typedef struct MyBlock_ {
struct MyBlock_* next;
@@ -74,15 +112,23 @@ typedef struct MyBlock_ {
typedef struct {
MyBlock* blockv[MAX_BLOCK_PER_THR];
+ MyRandState rand_state;
enum { GROWING, SHRINKING, CLEANUP, DONE } phase;
- int ix;
+ int nblocks;
+ int goal_nblocks;
int round;
+ int nr_of_migrations;
+ int nr_of_carriers;
+ int max_blocks_in_mbc;
+ int block_size;
+ int max_nblocks;
} MigrationState;
typedef struct {
ErlNifMutex* mtx;
int nblocks;
MyBlock* first;
+ MigrationState* employer;
} MyCrrInfo;
@@ -99,6 +145,7 @@ static void my_creating_mbc(Allctr_t *allctr, Carrier_t *carrier)
mci->mtx = enif_mutex_create("alloc_SUITE.migration");
mci->nblocks = 0;
mci->first = NULL;
+ mci->employer = NULL;
}
static void my_destroying_mbc(Allctr_t *allctr, Carrier_t *carrier)
@@ -131,17 +178,28 @@ static int migration_init(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_in
return 0;
}
-static void add_block(MyBlock* p)
+static void add_block(MyBlock* p, MigrationState* state)
{
MyCrrInfo* mci = (MyCrrInfo*)((char*)BLK_TO_MBC(UMEM2BLK_TEST(p)) + crr_info_offset);
enif_mutex_lock(mci->mtx);
- mci->nblocks++;
+ if (++mci->nblocks > state->max_blocks_in_mbc)
+ state->max_blocks_in_mbc = mci->nblocks;
p->next = mci->first;
p->prevp = &mci->first;
mci->first = p;
if (p->next)
p->next->prevp = &p->next;
+ if (mci->employer != state) {
+ if (!mci->employer) {
+ FATAL_ASSERT(mci->nblocks == 1);
+ state->nr_of_carriers++;
+ }
+ else {
+ state->nr_of_migrations++;
+ }
+ mci->employer = state;
+ }
enif_mutex_unlock(mci->mtx);
}
@@ -157,6 +215,38 @@ static void remove_block(MyBlock* p)
enif_mutex_unlock(mci->mtx);
}
+static int rand_int(MigrationState* state, int low, int high)
+{
+ int x;
+ FATAL_ASSERT(high >= low);
+ x = myrand(&state->rand_state);
+ return low + (x % (high+1-low));
+}
+
+
+static void do_cleanup(TestCaseState_t *tcs, MigrationState* state)
+{
+ if (state->nblocks == 0) {
+ state->phase = DONE;
+ testcase_printf(tcs, "%d: Done %d rounds", tcs->thr_nr, state->round);
+ testcase_printf(tcs, "%d: Cleanup all blocks", tcs->thr_nr);
+ testcase_printf(tcs, "%d: Empty carriers detected = %d", tcs->thr_nr,
+ state->nr_of_carriers);
+ testcase_printf(tcs, "%d: Migrations detected = %d", tcs->thr_nr,
+ state->nr_of_migrations);
+ testcase_printf(tcs, "%d: Max blocks in carrier = %d", tcs->thr_nr,
+ state->max_blocks_in_mbc);
+ }
+ else {
+ state->nblocks--;
+ if (state->blockv[state->nblocks]) {
+ remove_block(state->blockv[state->nblocks]);
+ FREE_TEST(state->blockv[state->nblocks]);
+ }
+ }
+}
+
+
void
testcase_run(TestCaseState_t *tcs)
{
@@ -169,61 +259,85 @@ testcase_run(TestCaseState_t *tcs)
tcs->extra = enif_alloc(sizeof(MigrationState));
state = (MigrationState*) tcs->extra;
memset(state->blockv, 0, sizeof(state->blockv));
+ myrand_init(&state->rand_state, tcs->thr_nr);
state->phase = GROWING;
- state->ix = 0;
+ state->nblocks = 0;
state->round = 0;
+ state->nr_of_migrations = 0;
+ state->nr_of_carriers = 0;
+ state->max_blocks_in_mbc = 0;
+ state->block_size = GET_TEST_MBC_SIZE() / (BLOCKS_PER_MBC+1);
+ if (MAX_BLOCK_PER_THR * state->block_size < tcs->free_mem) {
+ state->max_nblocks = MAX_BLOCK_PER_THR;
+ } else {
+ state->max_nblocks = tcs->free_mem / state->block_size;
+ }
+ state->goal_nblocks = rand_int(state, 1, state->max_nblocks);
}
switch (state->phase) {
case GROWING: {
MyBlock* p;
- FATAL_ASSERT(!state->blockv[state->ix]);
- p = ALLOC_TEST((1 << 18) / 5);
+ FATAL_ASSERT(!state->blockv[state->nblocks]);
+ p = ALLOC_TEST(rand_int(state, state->block_size/2, state->block_size));
FATAL_ASSERT(p);
- add_block(p);
- state->blockv[state->ix] = p;
- do {
- if (++state->ix >= MAX_BLOCK_PER_THR) {
- state->phase = SHRINKING;
- state->ix = 0;
- break;
- }
- } while (state->blockv[state->ix] != NULL);
+ add_block(p, state);
+ state->blockv[state->nblocks] = p;
+ if (++state->nblocks >= state->goal_nblocks) {
+ /*testcase_printf(tcs, "%d: Grown to %d blocks", tcs->thr_nr, state->nblocks);*/
+ state->phase = SHRINKING;
+ state->goal_nblocks = rand_int(state, 0, state->goal_nblocks-1);
+ }
+ else
+ FATAL_ASSERT(!state->blockv[state->nblocks]);
break;
}
- case SHRINKING:
- FATAL_ASSERT(state->blockv[state->ix]);
- remove_block(state->blockv[state->ix]);
- FREE_TEST(state->blockv[state->ix]);
- state->blockv[state->ix] = NULL;
-
- state->ix += 1 + ((state->ix % 3) == 0);
- if (state->ix >= MAX_BLOCK_PER_THR) {
+ case SHRINKING: {
+ int ix = rand_int(state, 0, state->nblocks-1);
+ FATAL_ASSERT(state->blockv[ix]);
+ remove_block(state->blockv[ix]);
+ FREE_TEST(state->blockv[ix]);
+ state->blockv[ix] = state->blockv[--state->nblocks];
+ state->blockv[state->nblocks] = NULL;
+
+ if (state->nblocks <= state->goal_nblocks) {
+ /*testcase_printf(tcs, "%d: Shrunk to %d blocks", tcs->thr_nr, state->nblocks);*/
if (++state->round >= MAX_ROUNDS) {
state->phase = CLEANUP;
} else {
state->phase = GROWING;
+ state->goal_nblocks = rand_int(state, state->goal_nblocks+1, state->max_nblocks);
}
- state->ix = 0;
}
break;
-
+ }
case CLEANUP:
- if (state->blockv[state->ix]) {
- remove_block(state->blockv[state->ix]);
- FREE_TEST(state->blockv[state->ix]);
- }
- if (++state->ix >= MAX_BLOCK_PER_THR)
- state->phase = DONE;
+ do_cleanup(tcs, state);
break;
default:
FATAL_ASSERT(!"Invalid phase");
}
- if (state->phase != DONE)
+ if (state->phase == DONE) {
+ }
+ else {
testcase_continue(tcs);
+ }
}
+void
+testcase_cleanup(TestCaseState_t *tcs)
+{
+ MigrationState* state = (MigrationState*) tcs->extra;
+
+ while (state->phase != DONE)
+ do_cleanup(tcs, state);
+
+ enif_free(tcs->extra);
+ tcs->extra = NULL;
+}
+
+
ERL_NIF_INIT(migration, testcase_nif_funcs, migration_init,
NULL, NULL, NULL);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 07:20:08 +0000