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-rw-r--r--erts/emulator/beam/erl_alloc.types2
-rw-r--r--erts/emulator/beam/erl_db.c39
-rw-r--r--erts/emulator/beam/erl_lock_check.c2
-rw-r--r--erts/emulator/beam/erl_process.c137
-rw-r--r--erts/emulator/beam/erl_process.h14
5 files changed, 184 insertions, 10 deletions
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index 408ffd12f7..b7b9c6a133 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -263,6 +263,8 @@ type XPORTS_LIST SHORT_LIVED SYSTEM extra_port_list
type PROC_LCK_WTR LONG_LIVED SYSTEM proc_lock_waiter
type PROC_LCK_QS LONG_LIVED SYSTEM proc_lock_queues
type RUNQ_BLNS LONG_LIVED SYSTEM run_queue_balancing
+type MISC_AUX_WORK_Q LONG_LIVED SYSTEM misc_aux_work_q
+type MISC_AUX_WORK SHORT_LIVED SYSTEM misc_aux_work
+endif
#
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index 65565cf3c7..8875780842 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -227,10 +227,10 @@ static ERTS_INLINE DbTable* db_ref(DbTable* tb, db_lock_kind_t kind)
}
return tb;
}
-
-static ERTS_INLINE DbTable* db_unref(DbTable* tb, db_lock_kind_t kind)
+
+static void
+free_dbtable(DbTable* tb)
{
- if (kind != LCK_READ && !erts_refc_dectest(&tb->common.ref, 0)) {
#ifdef HARDDEBUG
if (erts_smp_atomic_read(&tb->common.memory_size) != sizeof(DbTable)) {
erts_fprintf(stderr, "ets: db_unref memory remain=%ld fix=%x\n",
@@ -257,6 +257,36 @@ static ERTS_INLINE DbTable* db_unref(DbTable* tb, db_lock_kind_t kind)
ASSERT(is_immed(tb->common.heir_data));
erts_db_free(ERTS_ALC_T_DB_TABLE, tb, (void *) tb, sizeof(DbTable));
ERTS_ETS_MISC_MEM_ADD(-sizeof(DbTable));
+}
+
+#ifdef ERTS_SMP
+static void
+chk_free_dbtable(void *vtb)
+{
+ DbTable * tb = (DbTable *) vtb;
+ ERTS_THR_MEMORY_BARRIER;
+ if (erts_refc_dectest(&tb->common.ref, 0) == 0)
+ free_dbtable(tb);
+}
+#endif
+
+static ERTS_INLINE DbTable* db_unref(DbTable* tb, db_lock_kind_t kind)
+{
+ if (kind != LCK_READ && erts_refc_dectest(&tb->common.ref, 0) == 0) {
+#ifdef ERTS_SMP
+ int scheds = erts_get_max_no_executing_schedulers();
+ if (scheds == 1)
+ free_dbtable(tb);
+ else {
+ int refs = scheds - 1;
+ ASSERT(scheds > 1);
+ ERTS_THR_MEMORY_BARRIER;
+ erts_refc_add(&tb->common.ref, refs, refs);
+ erts_smp_schedule_misc_aux_work(1, scheds, chk_free_dbtable, tb);
+ }
+#else
+ free_dbtable(tb);
+#endif
return NULL;
}
return tb;
@@ -1436,8 +1466,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2)
"** Too many db tables **\n");
free_heir_data(tb);
tb->common.meth->db_free_table(tb);
- erts_db_free(ERTS_ALC_T_DB_TABLE, tb, (void *) tb, sizeof(DbTable));
- ERTS_ETS_MISC_MEM_ADD(-sizeof(DbTable));
+ db_unref(tb, LCK_NONE);
BIF_ERROR(BIF_P, SYSTEM_LIMIT);
}
diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c
index 7a6aaa6bbe..0185baee6b 100644
--- a/erts/emulator/beam/erl_lock_check.c
+++ b/erts/emulator/beam/erl_lock_check.c
@@ -177,6 +177,8 @@ static erts_lc_lock_order_t erts_lock_order[] = {
{ "async_id", NULL },
{ "pix_lock", "address" },
{ "run_queues_lists", NULL },
+ { "misc_aux_work_queue", "index" },
+ { "misc_aux_work_pre_alloc_lock", "address" },
{ "sched_stat", NULL },
{ "run_queue_sleep_list", "address" },
#endif
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 77ee1d6ac5..fbe4381aca 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -590,6 +590,122 @@ erts_sched_finish_poke(ErtsSchedulerSleepInfo *ssi, erts_aint32_t flags)
}
}
+typedef struct erts_misc_aux_work_t_ erts_misc_aux_work_t;
+struct erts_misc_aux_work_t_ {
+ erts_misc_aux_work_t *next;
+ void (*func)(void *);
+ void *arg;
+};
+
+typedef struct {
+ erts_smp_mtx_t mtx;
+ erts_misc_aux_work_t *first;
+ erts_misc_aux_work_t *last;
+} erts_misc_aux_work_q_t;
+
+typedef union {
+ erts_misc_aux_work_q_t data;
+ char align[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_misc_aux_work_q_t))];
+} erts_algnd_misc_aux_work_q_t;
+
+static erts_algnd_misc_aux_work_q_t *misc_aux_work_queues;
+
+ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(misc_aux_work,
+ erts_misc_aux_work_t,
+ 200,
+ ERTS_ALC_T_MISC_AUX_WORK)
+
+static void
+init_misc_aux_work(void)
+{
+ int ix;
+
+ init_misc_aux_work_alloc();
+
+ misc_aux_work_queues = erts_alloc(ERTS_ALC_T_MISC_AUX_WORK_Q,
+ (sizeof(erts_algnd_misc_aux_work_q_t)
+ *(erts_no_schedulers+1)));
+ if ((((UWord) misc_aux_work_queues) & ERTS_CACHE_LINE_MASK) != 0)
+ misc_aux_work_queues = ((erts_algnd_misc_aux_work_q_t *)
+ ((((UWord) misc_aux_work_queues)
+ & ~ERTS_CACHE_LINE_MASK)
+ + ERTS_CACHE_LINE_SIZE));
+
+ for (ix = 0; ix < erts_no_schedulers; ix++) {
+ erts_smp_mtx_init_x(&misc_aux_work_queues[ix].data.mtx,
+ "misc_aux_work_queue",
+ make_small(ix + 1));
+ misc_aux_work_queues[ix].data.first = NULL;
+ misc_aux_work_queues[ix].data.last = NULL;
+ }
+}
+
+static void
+handle_misc_aux_work(ErtsSchedulerData *esdp)
+{
+ int ix = (int) esdp->no - 1;
+ erts_misc_aux_work_t *mawp;
+
+ erts_smp_mtx_lock(&misc_aux_work_queues[ix].data.mtx);
+ mawp = misc_aux_work_queues[ix].data.first;
+ misc_aux_work_queues[ix].data.first = NULL;
+ misc_aux_work_queues[ix].data.last = NULL;
+ erts_smp_mtx_unlock(&misc_aux_work_queues[ix].data.mtx);
+
+ while (mawp) {
+ erts_misc_aux_work_t *free_mawp;
+ mawp->func(mawp->arg);
+ free_mawp = mawp;
+ mawp = mawp->next;
+ misc_aux_work_free(free_mawp);
+ }
+}
+
+void
+erts_smp_schedule_misc_aux_work(int ignore_self,
+ int max_sched,
+ void (*func)(void *),
+ void *arg)
+{
+ int ix, ignore_ix = -1;
+
+ if (ignore_self) {
+ ErtsSchedulerData *esdp = erts_get_scheduler_data();
+ if (esdp)
+ ignore_ix = (int) esdp->no - 1;
+ }
+
+ ASSERT(0 <= max_sched && max_sched <= erts_no_schedulers);
+
+ for (ix = 0; ix < max_sched; ix++) {
+ long aux_work;
+ erts_misc_aux_work_t *mawp;
+ ErtsSchedulerSleepInfo *ssi;
+ if (ix == ignore_ix)
+ continue;
+
+ mawp = misc_aux_work_alloc();
+
+ mawp->func = func;
+ mawp->arg = arg;
+ mawp->next = NULL;
+
+ erts_smp_mtx_lock(&misc_aux_work_queues[ix].data.mtx);
+ if (!misc_aux_work_queues[ix].data.last)
+ misc_aux_work_queues[ix].data.first = mawp;
+ else
+ misc_aux_work_queues[ix].data.last->next = mawp;
+ misc_aux_work_queues[ix].data.last = mawp;
+ erts_smp_mtx_unlock(&misc_aux_work_queues[ix].data.mtx);
+
+ ssi = ERTS_SCHED_SLEEP_INFO_IX(ix);
+ aux_work = erts_smp_atomic32_bor(&ssi->aux_work,
+ ERTS_SSI_AUX_WORK_MISC);
+ if ((aux_work & ERTS_SSI_AUX_WORK_MISC) == 0)
+ erts_sched_poke(ssi);
+ }
+}
+
#ifdef ERTS_SMP_SCHEDULERS_NEED_TO_CHECK_CHILDREN
void
erts_smp_notify_check_children_needed(void)
@@ -615,6 +731,12 @@ blockable_aux_work(ErtsSchedulerData *esdp,
erts_aint32_t aux_work)
{
if (aux_work & ERTS_SSI_BLOCKABLE_AUX_WORK_MASK) {
+ if (aux_work & ERTS_SSI_AUX_WORK_MISC) {
+ aux_work = erts_smp_atomic32_band(&ssi->aux_work,
+ ~ERTS_SSI_AUX_WORK_MISC);
+ aux_work &= ~ERTS_SSI_AUX_WORK_MISC;
+ handle_misc_aux_work(esdp);
+ }
#ifdef ERTS_SMP_SCHEDULERS_NEED_TO_CHECK_CHILDREN
if (aux_work & ERTS_SSI_AUX_WORK_CHECK_CHILDREN) {
aux_work = erts_smp_atomic32_band(&ssi->aux_work,
@@ -2612,6 +2734,8 @@ erts_init_scheduling(int mrq, int no_schedulers, int no_schedulers_online)
erts_smp_atomic32_init(&doing_sys_schedule, 0);
+ init_misc_aux_work();
+
#else /* !ERTS_SMP */
{
ErtsSchedulerData *esdp;
@@ -2739,6 +2863,19 @@ resume_process(Process *p)
p->rstatus = P_FREE;
}
+int
+erts_get_max_no_executing_schedulers(void)
+{
+#ifdef ERTS_SMP
+ if (erts_smp_atomic32_read(&schdlr_sspnd.changing))
+ return (int) erts_no_schedulers;
+ ERTS_THR_MEMORY_BARRIER;
+ return (int) erts_smp_atomic32_read(&schdlr_sspnd.active);
+#else
+ return 1;
+#endif
+}
+
#ifdef ERTS_SMP
static void
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 8e32121a68..d927415f37 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -236,16 +236,14 @@ typedef enum {
| ERTS_SSI_FLG_WAITING \
| ERTS_SSI_FLG_SUSPENDED)
-
-#if !defined(ERTS_SCHED_NEED_BLOCKABLE_AUX_WORK) \
- && defined(ERTS_SMP_SCHEDULERS_NEED_TO_CHECK_CHILDREN)
#define ERTS_SCHED_NEED_BLOCKABLE_AUX_WORK
-#endif
#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN (((erts_aint32_t) 1) << 0)
+#define ERTS_SSI_AUX_WORK_MISC (((erts_aint32_t) 1) << 1)
#define ERTS_SSI_BLOCKABLE_AUX_WORK_MASK \
- (ERTS_SSI_AUX_WORK_CHECK_CHILDREN)
+ (ERTS_SSI_AUX_WORK_CHECK_CHILDREN \
+ | ERTS_SSI_AUX_WORK_MISC)
#define ERTS_SSI_NONBLOCKABLE_AUX_WORK_MASK \
(0)
@@ -1034,6 +1032,7 @@ int erts_sched_set_wakeup_limit(char *str);
#ifdef DEBUG
void erts_dbg_multi_scheduling_return_trap(Process *, Eterm);
#endif
+int erts_get_max_no_executing_schedulers(void);
#ifdef ERTS_SMP
ErtsSchedSuspendResult
erts_schedulers_state(Uint *, Uint *, Uint *, int);
@@ -1048,6 +1047,11 @@ int erts_is_multi_scheduling_blocked(void);
Eterm erts_multi_scheduling_blockers(Process *);
void erts_start_schedulers(void);
void erts_smp_notify_check_children_needed(void);
+void
+erts_smp_schedule_misc_aux_work(int ignore_self,
+ int max_sched,
+ void (*func)(void *),
+ void *arg);
#endif
void erts_sched_notify_check_cpu_bind(void);
Uint erts_active_schedulers(void);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 00:12:46 +0000