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authorRickard Green <[email protected]>2012-02-16 15:55:03 +0100
committerRickard Green <[email protected]>2012-02-19 22:57:51 +0100
commita393026eb77ce06711c931bf68eed12d9f8ba9c9 (patch)
tree936833d47ff83ecd9a37198c6ed5dd6962c91742 /erts/emulator/beam
parentcfb7f3fcffad43647be5b9b818310b44003b97ab (diff)
downloadotp-a393026eb77ce06711c931bf68eed12d9f8ba9c9.tar.gz
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Reduce thread progress read operations in handle_aux_work()
Diffstat (limited to 'erts/emulator/beam')
-rw-r--r--erts/emulator/beam/erl_process.c171
-rw-r--r--erts/emulator/beam/erl_process.h33
2 files changed, 103 insertions, 101 deletions
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 57ef7bb8b8..b0f82e4c11 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -348,40 +348,25 @@ dbg_chk_aux_work_val(erts_aint32_t value)
{
erts_aint32_t valid = 0;
-#ifdef ERTS_SSI_AUX_WORK_SET_TMO
valid |= ERTS_SSI_AUX_WORK_SET_TMO;
-#endif
-#ifdef ERTS_SSI_AUX_WORK_CHECK_CHILDREN
- valid |= ERTS_SSI_AUX_WORK_CHECK_CHILDREN;
-#endif
-#ifdef ERTS_SSI_AUX_WORK_MISC
valid |= ERTS_SSI_AUX_WORK_MISC;
-#endif
-#ifdef ERTS_SSI_AUX_WORK_MISC_THR_PRGR
- valid |= ERTS_SSI_AUX_WORK_MISC_THR_PRGR;
-#endif
-#ifdef ERTS_SSI_AUX_WORK_ASYNC_READY
- valid |= ERTS_SSI_AUX_WORK_ASYNC_READY;
-#endif
-#ifdef ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN
- valid |= ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN;
-#endif
-
-#ifdef ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM
valid |= ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM;
-#endif
-#ifdef ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC
valid |= ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC;
+#if ERTS_USE_ASYNC_READY_Q
+ valid |= ERTS_SSI_AUX_WORK_ASYNC_READY;
+ valid |= ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN;
#endif
-#ifdef ERTS_SSI_AUX_WORK_DD
+#ifdef ERTS_SMP
+ valid |= ERTS_SSI_AUX_WORK_MISC_THR_PRGR;
valid |= ERTS_SSI_AUX_WORK_DD;
-#endif
-#ifdef ERTS_SSI_AUX_WORK_DD
valid |= ERTS_SSI_AUX_WORK_DD_THR_PRGR;
#endif
-#ifdef ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK
+#if HAVE_ERTS_MSEG
valid |= ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK;
#endif
+#ifdef ERTS_SMP_SCHEDULERS_NEED_TO_CHECK_CHILDREN
+ valid |= ERTS_SSI_AUX_WORK_CHECK_CHILDREN;
+#endif
if (~valid & value)
erl_exit(ERTS_ABORT_EXIT,
@@ -802,7 +787,7 @@ misc_aux_work_clean(ErtsThrQ_t *q,
return aux_work;
}
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_misc_aux_work(ErtsAuxWorkData *awdp,
erts_aint32_t aux_work)
{
@@ -822,13 +807,13 @@ handle_misc_aux_work(ErtsAuxWorkData *awdp,
#ifdef ERTS_SMP
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_misc_aux_work_thr_prgr(ErtsAuxWorkData *awdp,
erts_aint32_t aux_work)
{
if (!erts_thr_progress_has_reached_this(thr_prgr_current(awdp),
awdp->misc.thr_prgr))
- return aux_work;
+ return aux_work & ~ERTS_SSI_AUX_WORK_MISC_THR_PRGR;
unset_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_MISC_THR_PRGR);
@@ -901,7 +886,7 @@ erts_notify_check_async_ready_queue(void *vno)
ERTS_SSI_AUX_WORK_ASYNC_READY);
}
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_async_ready(ErtsAuxWorkData *awdp,
erts_aint32_t aux_work)
{
@@ -923,7 +908,7 @@ handle_async_ready(ErtsAuxWorkData *awdp,
| ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN);
}
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_async_ready_clean(ErtsAuxWorkData *awdp,
erts_aint32_t aux_work)
{
@@ -960,7 +945,7 @@ handle_async_ready_clean(ErtsAuxWorkData *awdp,
#endif
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_fix_alloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
{
ErtsSchedulerSleepInfo *ssi = awdp->ssi;
@@ -988,7 +973,7 @@ erts_alloc_notify_delayed_dealloc(int ix)
ERTS_SSI_AUX_WORK_DD);
}
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_delayed_dealloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
{
ErtsSchedulerSleepInfo *ssi = awdp->ssi;
@@ -1026,7 +1011,7 @@ handle_delayed_dealloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
return aux_work & ~ERTS_SSI_AUX_WORK_DD;
}
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_delayed_dealloc_thr_prgr(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
{
ErtsSchedulerSleepInfo *ssi;
@@ -1154,7 +1139,7 @@ erts_smp_notify_check_children_needed(void)
ERTS_SSI_AUX_WORK_CHECK_CHILDREN);
}
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_check_children(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
{
unset_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_CHECK_CHILDREN);
@@ -1164,9 +1149,9 @@ handle_check_children(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
#endif
-#ifdef ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK
+#if HAVE_ERTS_MSEG
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_mseg_cache_check(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
{
unset_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK);
@@ -1176,7 +1161,7 @@ handle_mseg_cache_check(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
#endif
-static erts_aint32_t
+static ERTS_INLINE erts_aint32_t
handle_setup_aux_work_timer(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
{
unset_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_SET_TMO);
@@ -1184,72 +1169,92 @@ handle_setup_aux_work_timer(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
return aux_work & ~ERTS_SSI_AUX_WORK_SET_TMO;
}
-static ERTS_INLINE erts_aint32_t
-handle_aux_work(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
+static erts_aint32_t
+handle_aux_work(ErtsAuxWorkData *awdp, erts_aint32_t orig_aux_work)
{
+#undef HANDLE_AUX_WORK
+#define HANDLE_AUX_WORK(FLG, HNDLR) \
+ ignore |= FLG; \
+ if (aux_work & FLG) { \
+ aux_work = HNDLR(awdp, aux_work); \
+ ERTS_DBG_CHK_AUX_WORK_VAL(aux_work); \
+ if (!(aux_work & ~ignore)) { \
+ ERTS_DBG_CHK_AUX_WORK_VAL(aux_work); \
+ return aux_work; \
+ } \
+ }
+
+ erts_aint32_t aux_work = orig_aux_work;
+ erts_aint32_t ignore = 0;
+
#ifdef ERTS_SMP
thr_prgr_current_reset(awdp);
#endif
+
+ ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
+ ASSERT(aux_work);
+
/*
* Handlers are *only* allowed to modify flags in return value
* and ssi flags that are explicity handled by the handler.
* Handlers are, e.g., not allowed to read the ssi flag field and
* then unconditionally return that value.
+ *
+ * Flag field returned should only contain flags for work that
+ * can continue immediately.
+ */
+
+ /*
+ * Keep ERTS_SSI_AUX_WORK flags in expected frequency order relative
+ * eachother. Most frequent first.
*/
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- if (aux_work & ERTS_SSI_AUX_WORK_SET_TMO) {
- aux_work = handle_setup_aux_work_timer(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
#ifdef ERTS_SMP
- if (aux_work & ERTS_SSI_AUX_WORK_MISC_THR_PRGR) {
- aux_work = handle_misc_aux_work_thr_prgr(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_DD,
+ handle_delayed_dealloc);
+ /* DD must be before DD_THR_PRGR */
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_DD_THR_PRGR,
+ handle_delayed_dealloc_thr_prgr);
#endif
- if (aux_work & ERTS_SSI_AUX_WORK_MISC) {
- aux_work = handle_misc_aux_work(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
+
+ HANDLE_AUX_WORK((ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM
+ | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC),
+ handle_fix_alloc);
+
#if ERTS_USE_ASYNC_READY_Q
- if (aux_work & ERTS_SSI_AUX_WORK_ASYNC_READY) {
- aux_work = handle_async_ready(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
- if (aux_work & ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN) {
- aux_work = handle_async_ready_clean(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
-#endif
-#ifdef ERTS_SMP_SCHEDULERS_NEED_TO_CHECK_CHILDREN
- if (aux_work & ERTS_SSI_AUX_WORK_CHECK_CHILDREN) {
- aux_work = handle_check_children(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_ASYNC_READY,
+ handle_async_ready);
+ /* ASYNC_READY must be before ASYNC_READY_CLEAN */
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN,
+ handle_async_ready_clean);
#endif
- if (aux_work & (ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM
- | ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC)) {
- aux_work = handle_fix_alloc(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
+
#ifdef ERTS_SMP
- if (aux_work & ERTS_SSI_AUX_WORK_DD) {
- aux_work = handle_delayed_dealloc(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
- if (aux_work & ERTS_SSI_AUX_WORK_DD_THR_PRGR) {
- aux_work = handle_delayed_dealloc_thr_prgr(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_MISC_THR_PRGR,
+ handle_misc_aux_work_thr_prgr);
#endif
-#ifdef ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK
- if (aux_work & ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK) {
- aux_work = handle_mseg_cache_check(awdp, aux_work);
- ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
- }
+ /* MISC_THR_PRGR must be before MISC */
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_MISC,
+ handle_misc_aux_work);
+
+#ifdef ERTS_SMP_SCHEDULERS_NEED_TO_CHECK_CHILDREN
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_CHECK_CHILDREN,
+ handle_check_children);
+#endif
+
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_SET_TMO,
+ handle_setup_aux_work_timer);
+
+#if HAVE_ERTS_MSEG
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK,
+ handle_mseg_cache_check);
#endif
+
ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
+
return aux_work;
+
+#undef HANDLE_AUX_WORK
+
}
typedef struct {
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index ad32dc11f9..c4f0ced294 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -248,25 +248,22 @@ typedef enum {
| ERTS_SSI_FLG_WAITING \
| ERTS_SSI_FLG_SUSPENDED)
-#define ERTS_SSI_AUX_WORK_SET_TMO (((erts_aint32_t) 1) << 0)
-#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN (((erts_aint32_t) 1) << 1)
-#define ERTS_SSI_AUX_WORK_MISC (((erts_aint32_t) 1) << 2)
-#ifdef ERTS_SMP
-#define ERTS_SSI_AUX_WORK_MISC_THR_PRGR (((erts_aint32_t) 1) << 3)
-#endif
-#define ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM (((erts_aint32_t) 1) << 4)
-#define ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC (((erts_aint32_t) 1) << 5)
-#define ERTS_SSI_AUX_WORK_ASYNC_READY (((erts_aint32_t) 1) << 6)
-#define ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN (((erts_aint32_t) 1) << 7)
-#ifdef ERTS_SMP
-#define ERTS_SSI_AUX_WORK_DD (((erts_aint32_t) 1) << 8)
-#define ERTS_SSI_AUX_WORK_DD_THR_PRGR (((erts_aint32_t) 1) << 9)
-#endif
-#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK (((erts_aint32_t) 1) << 10)
+/*
+ * Keep ERTS_SSI_AUX_WORK flags in expected frequency order relative
+ * eachother. Most frequent - lowest bit number.
+ */
-#if !HAVE_ERTS_MSEG
-# undef ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK
-#endif
+#define ERTS_SSI_AUX_WORK_DD (((erts_aint32_t) 1) << 0)
+#define ERTS_SSI_AUX_WORK_DD_THR_PRGR (((erts_aint32_t) 1) << 1)
+#define ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC (((erts_aint32_t) 1) << 2)
+#define ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM (((erts_aint32_t) 1) << 3)
+#define ERTS_SSI_AUX_WORK_ASYNC_READY (((erts_aint32_t) 1) << 4)
+#define ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN (((erts_aint32_t) 1) << 5)
+#define ERTS_SSI_AUX_WORK_MISC_THR_PRGR (((erts_aint32_t) 1) << 6)
+#define ERTS_SSI_AUX_WORK_MISC (((erts_aint32_t) 1) << 7)
+#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN (((erts_aint32_t) 1) << 8)
+#define ERTS_SSI_AUX_WORK_SET_TMO (((erts_aint32_t) 1) << 9)
+#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK (((erts_aint32_t) 1) << 10)
typedef struct ErtsSchedulerSleepInfo_ ErtsSchedulerSleepInfo;