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-rw-r--r--erts/emulator/sys/common/erl_mmap.c3
-rw-r--r--erts/emulator/sys/common/erl_mseg.c378
-rw-r--r--erts/emulator/sys/common/erl_mseg.h3
3 files changed, 136 insertions, 248 deletions
diff --git a/erts/emulator/sys/common/erl_mmap.c b/erts/emulator/sys/common/erl_mmap.c
index 754047829f..e6d0e1e281 100644
--- a/erts/emulator/sys/common/erl_mmap.c
+++ b/erts/emulator/sys/common/erl_mmap.c
@@ -2453,7 +2453,6 @@ Eterm erts_mmap_debug_info(Process* p)
UWord values[4];
Eterm *hp, *hp_end;
Uint may_need;
- const Uint PTR_BIG_SZ = HALFWORD_HEAP ? 3 : 2;
erts_smp_mtx_lock(&mmap_state.mtx);
values[0] = (UWord)mmap_state.sa.bot;
@@ -2464,7 +2463,7 @@ Eterm erts_mmap_debug_info(Process* p)
sua_list = build_free_seg_list(p, &mmap_state.sua.map);
erts_smp_mtx_unlock(&mmap_state.mtx);
- may_need = 4*(2+3+PTR_BIG_SZ) + 2*(2+3);
+ may_need = 4*(2+3+2) + 2*(2+3);
hp = HAlloc(p, may_need);
hp_end = hp + may_need;
diff --git a/erts/emulator/sys/common/erl_mseg.c b/erts/emulator/sys/common/erl_mseg.c
index 0d51aad863..7eb8a4a460 100644
--- a/erts/emulator/sys/common/erl_mseg.c
+++ b/erts/emulator/sys/common/erl_mseg.c
@@ -99,17 +99,12 @@ static const int debruijn[32] = {
static int atoms_initialized;
-typedef struct mem_kind_t MemKind;
-
const ErtsMsegOpt_t erts_mseg_default_opt = {
1, /* Use cache */
1, /* Preserv data */
0, /* Absolute shrink threshold */
0, /* Relative shrink threshold */
0 /* Scheduler specific */
-#if HALFWORD_HEAP
- ,0 /* need low memory */
-#endif
};
@@ -142,7 +137,14 @@ struct cache_t_ {
typedef struct ErtsMsegAllctr_t_ ErtsMsegAllctr_t;
-struct mem_kind_t {
+struct ErtsMsegAllctr_t_ {
+ int ix;
+
+ int is_init_done;
+ int is_thread_safe;
+ erts_mtx_t mtx;
+
+ int is_cache_check_scheduled;
cache_t cache[MAX_CACHE_SIZE];
cache_t cache_unpowered_node;
@@ -168,29 +170,6 @@ struct mem_kind_t {
} max_ever;
} segments;
- ErtsMsegAllctr_t *ma;
- const char* name;
- MemKind* next;
-};/*MemKind*/
-
-struct ErtsMsegAllctr_t_ {
- int ix;
-
- int is_init_done;
- int is_thread_safe;
- erts_mtx_t mtx;
-
- int is_cache_check_scheduled;
-
- MemKind* mk_list;
-
-#if HALFWORD_HEAP
- MemKind low_mem;
- MemKind hi_mem;
-#else
- MemKind the_mem;
-#endif
-
Uint max_cache_size;
Uint abs_max_cache_bad_fit;
Uint rel_max_cache_bad_fit;
@@ -302,18 +281,13 @@ schedule_cache_check(ErtsMsegAllctr_t *ma) {
/* #define ERTS_PRINT_ERTS_MMAP */
static ERTS_INLINE void *
-mseg_create(ErtsMsegAllctr_t *ma, Uint flags, MemKind* mk, UWord *sizep)
+mseg_create(ErtsMsegAllctr_t *ma, Uint flags, UWord *sizep)
{
#ifdef ERTS_PRINT_ERTS_MMAP
UWord req_size = *sizep;
#endif
void *seg;
Uint32 mmap_flags = 0;
-#if HALFWORD_HEAP
- mmap_flags |= ((mk == &ma->low_mem)
- ? ERTS_MMAPFLG_SUPERCARRIER_ONLY
- : ERTS_MMAPFLG_OS_ONLY);
-#endif
if (MSEG_FLG_IS_2POW(flags))
mmap_flags |= ERTS_MMAPFLG_SUPERALIGNED;
@@ -331,14 +305,9 @@ mseg_create(ErtsMsegAllctr_t *ma, Uint flags, MemKind* mk, UWord *sizep)
}
static ERTS_INLINE void
-mseg_destroy(ErtsMsegAllctr_t *ma, Uint flags, MemKind* mk, void *seg_p, UWord size) {
+mseg_destroy(ErtsMsegAllctr_t *ma, Uint flags, void *seg_p, UWord size) {
Uint32 mmap_flags = 0;
-#if HALFWORD_HEAP
- mmap_flags |= ((mk == &ma->low_mem)
- ? ERTS_MMAPFLG_SUPERCARRIER_ONLY
- : ERTS_MMAPFLG_OS_ONLY);
-#endif
if (MSEG_FLG_IS_2POW(flags))
mmap_flags |= ERTS_MMAPFLG_SUPERALIGNED;
@@ -353,18 +322,13 @@ mseg_destroy(ErtsMsegAllctr_t *ma, Uint flags, MemKind* mk, void *seg_p, UWord s
}
static ERTS_INLINE void *
-mseg_recreate(ErtsMsegAllctr_t *ma, Uint flags, MemKind* mk, void *old_seg, UWord old_size, UWord *sizep)
+mseg_recreate(ErtsMsegAllctr_t *ma, Uint flags, void *old_seg, UWord old_size, UWord *sizep)
{
#ifdef ERTS_PRINT_ERTS_MMAP
UWord req_size = *sizep;
#endif
void *new_seg;
Uint32 mmap_flags = 0;
-#if HALFWORD_HEAP
- mmap_flags |= ((mk == &ma->low_mem)
- ? ERTS_MMAPFLG_SUPERCARRIER_ONLY
- : ERTS_MMAPFLG_OS_ONLY);
-#endif
if (MSEG_FLG_IS_2POW(flags))
mmap_flags |= ERTS_MMAPFLG_SUPERALIGNED;
@@ -392,11 +356,8 @@ do { \
|| erts_smp_thr_progress_is_blocking() \
|| ERTS_IS_CRASH_DUMPING); \
} while (0)
-#define ERTS_DBG_MK_CHK_THR_ACCESS(MK) \
- ERTS_DBG_MA_CHK_THR_ACCESS((MK)->ma)
#else
#define ERTS_DBG_MA_CHK_THR_ACCESS(MA)
-#define ERTS_DBG_MK_CHK_THR_ACCESS(MK)
#endif
/* Cache interface */
@@ -409,10 +370,10 @@ static ERTS_INLINE void mseg_cache_clear_node(cache_t *c) {
c->prev = c;
}
-static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, UWord size, Uint flags) {
+static ERTS_INLINE int cache_bless_segment(ErtsMsegAllctr_t *ma, void *seg, UWord size, Uint flags) {
cache_t *c;
- ERTS_DBG_MK_CHK_THR_ACCESS(mk);
+ ERTS_DBG_MA_CHK_THR_ACCESS(ma);
ASSERT(!MSEG_FLG_IS_2POW(flags) || (MSEG_FLG_IS_2POW(flags) && MAP_IS_ALIGNED(seg) && IS_2POW(size)));
@@ -421,11 +382,11 @@ static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, UWord size, U
* Large blocks has no such cache and it is up to mseg to cache them to speed things up.
*/
- if (!erts_circleq_is_empty(&(mk->cache_free))) {
+ if (!erts_circleq_is_empty(&(ma->cache_free))) {
/* We have free slots, use one to cache the segment */
- c = erts_circleq_head(&(mk->cache_free));
+ c = erts_circleq_head(&(ma->cache_free));
erts_circleq_remove(c);
c->seg = seg;
@@ -437,29 +398,28 @@ static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, UWord size, U
ASSERT(ix < CACHE_AREAS);
ASSERT((1 << (ix + MSEG_ALIGN_BITS)) == size);
- erts_circleq_push_head(&(mk->cache_powered_node[ix]), c);
+ erts_circleq_push_head(&(ma->cache_powered_node[ix]), c);
} else
- erts_circleq_push_head(&(mk->cache_unpowered_node), c);
+ erts_circleq_push_head(&(ma->cache_unpowered_node), c);
- mk->cache_size++;
- ASSERT(mk->cache_size <= mk->ma->max_cache_size);
+ ma->cache_size++;
return 1;
- } else if (!MSEG_FLG_IS_2POW(flags) && !erts_circleq_is_empty(&(mk->cache_unpowered_node))) {
+ } else if (!MSEG_FLG_IS_2POW(flags) && !erts_circleq_is_empty(&(ma->cache_unpowered_node))) {
/* No free slots.
* Evict oldest slot from unpowered cache so we can cache an unpowered (sbc) segment */
- c = erts_circleq_tail(&(mk->cache_unpowered_node));
+ c = erts_circleq_tail(&(ma->cache_unpowered_node));
erts_circleq_remove(c);
- mseg_destroy(mk->ma, ERTS_MSEG_FLG_NONE, mk, c->seg, c->size);
+ mseg_destroy(ma, ERTS_MSEG_FLG_NONE, c->seg, c->size);
mseg_cache_clear_node(c);
c->seg = seg;
c->size = size;
- erts_circleq_push_head(&(mk->cache_unpowered_node), c);
+ erts_circleq_push_head(&(ma->cache_unpowered_node), c);
return 1;
} else if (!MSEG_FLG_IS_2POW(flags)) {
@@ -473,20 +433,20 @@ static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, UWord size, U
int i;
for( i = 0; i < CACHE_AREAS; i++) {
- if (erts_circleq_is_empty(&(mk->cache_powered_node[i])))
+ if (erts_circleq_is_empty(&(ma->cache_powered_node[i])))
continue;
- c = erts_circleq_tail(&(mk->cache_powered_node[i]));
+ c = erts_circleq_tail(&(ma->cache_powered_node[i]));
erts_circleq_remove(c);
- mseg_destroy(mk->ma, ERTS_MSEG_FLG_2POW, mk, c->seg, c->size);
+ mseg_destroy(ma, ERTS_MSEG_FLG_2POW, c->seg, c->size);
mseg_cache_clear_node(c);
c->seg = seg;
c->size = size;
- erts_circleq_push_head(&(mk->cache_unpowered_node), c);
+ erts_circleq_push_head(&(ma->cache_unpowered_node), c);
return 1;
}
@@ -495,11 +455,11 @@ static ERTS_INLINE int cache_bless_segment(MemKind *mk, void *seg, UWord size, U
return 0;
}
-static ERTS_INLINE void *cache_get_segment(MemKind *mk, UWord *size_p, Uint flags) {
+static ERTS_INLINE void *cache_get_segment(ErtsMsegAllctr_t *ma, UWord *size_p, Uint flags) {
UWord size = *size_p;
- ERTS_DBG_MK_CHK_THR_ACCESS(mk);
+ ERTS_DBG_MA_CHK_THR_ACCESS(ma);
if (MSEG_FLG_IS_2POW(flags)) {
@@ -512,10 +472,10 @@ static ERTS_INLINE void *cache_get_segment(MemKind *mk, UWord *size_p, Uint flag
for( i = ix; i < CACHE_AREAS; i++) {
- if (erts_circleq_is_empty(&(mk->cache_powered_node[i])))
+ if (erts_circleq_is_empty(&(ma->cache_powered_node[i])))
continue;
- c = erts_circleq_head(&(mk->cache_powered_node[i]));
+ c = erts_circleq_head(&(ma->cache_powered_node[i]));
erts_circleq_remove(c);
ASSERT(IS_2POW(c->size));
@@ -524,31 +484,31 @@ static ERTS_INLINE void *cache_get_segment(MemKind *mk, UWord *size_p, Uint flag
csize = c->size;
seg = (char*) c->seg;
- mk->cache_size--;
- mk->cache_hits++;
+ ma->cache_size--;
+ ma->cache_hits++;
/* link to free cache list */
mseg_cache_clear_node(c);
- erts_circleq_push_head(&(mk->cache_free), c);
+ erts_circleq_push_head(&(ma->cache_free), c);
- ASSERT(!(mk->cache_size < 0));
+ ASSERT(!(ma->cache_size < 0));
if (csize != size)
- mseg_destroy(mk->ma, ERTS_MSEG_FLG_2POW, mk, seg + size, csize - size);
+ mseg_destroy(ma, ERTS_MSEG_FLG_2POW, seg + size, csize - size);
return seg;
}
}
- else if (!erts_circleq_is_empty(&(mk->cache_unpowered_node))) {
+ else if (!erts_circleq_is_empty(&(ma->cache_unpowered_node))) {
void *seg;
cache_t *c;
cache_t *best = NULL;
UWord bdiff = 0;
UWord csize;
- UWord bad_max_abs = mk->ma->abs_max_cache_bad_fit;
- UWord bad_max_rel = mk->ma->rel_max_cache_bad_fit;
+ UWord bad_max_abs = ma->abs_max_cache_bad_fit;
+ UWord bad_max_rel = ma->rel_max_cache_bad_fit;
- erts_circleq_foreach(c, &(mk->cache_unpowered_node)) {
+ erts_circleq_foreach(c, &(ma->cache_unpowered_node)) {
csize = c->size;
if (csize >= size) {
if (((csize - size)*100 < bad_max_rel*size) && (csize - size) < bad_max_abs ) {
@@ -557,11 +517,11 @@ static ERTS_INLINE void *cache_get_segment(MemKind *mk, UWord *size_p, Uint flag
erts_circleq_remove(c);
- mk->cache_size--;
- mk->cache_hits++;
+ ma->cache_size--;
+ ma->cache_hits++;
mseg_cache_clear_node(c);
- erts_circleq_push_head(&(mk->cache_free), c);
+ erts_circleq_push_head(&(ma->cache_free), c);
*size_p = csize;
@@ -584,7 +544,7 @@ static ERTS_INLINE void *cache_get_segment(MemKind *mk, UWord *size_p, Uint flag
ASSERT(best->seg);
ASSERT(best->size > 0);
- mk->cache_hits++;
+ ma->cache_hits++;
/* Use current cache placement for remaining segment space */
@@ -608,7 +568,7 @@ static ERTS_INLINE void *cache_get_segment(MemKind *mk, UWord *size_p, Uint flag
* using callbacks from aux-work in the scheduler.
*/
-static ERTS_INLINE Uint mseg_drop_one_memkind_cache_size(MemKind *mk, Uint flags, cache_t *head) {
+static ERTS_INLINE Uint mseg_drop_one_cache_size(ErtsMsegAllctr_t *ma, Uint flags, cache_t *head) {
cache_t *c = NULL;
c = erts_circleq_tail(head);
@@ -617,19 +577,19 @@ static ERTS_INLINE Uint mseg_drop_one_memkind_cache_size(MemKind *mk, Uint flags
if (erts_mtrace_enabled)
erts_mtrace_crr_free(SEGTYPE, SEGTYPE, c->seg);
- mseg_destroy(mk->ma, flags, mk, c->seg, c->size);
+ mseg_destroy(ma, flags, c->seg, c->size);
mseg_cache_clear_node(c);
- erts_circleq_push_head(&(mk->cache_free), c);
+ erts_circleq_push_head(&(ma->cache_free), c);
- mk->segments.current.watermark--;
- mk->cache_size--;
+ ma->segments.current.watermark--;
+ ma->cache_size--;
- ASSERT( mk->cache_size >= 0 );
+ ASSERT(ma->cache_size >= 0);
- return mk->cache_size;
+ return ma->cache_size;
}
-static ERTS_INLINE Uint mseg_drop_memkind_cache_size(MemKind *mk, Uint flags, cache_t *head) {
+static ERTS_INLINE Uint mseg_drop_cache_size(ErtsMsegAllctr_t *ma, Uint flags, cache_t *head) {
cache_t *c = NULL;
while (!erts_circleq_is_empty(head)) {
@@ -640,58 +600,52 @@ static ERTS_INLINE Uint mseg_drop_memkind_cache_size(MemKind *mk, Uint flags, ca
if (erts_mtrace_enabled)
erts_mtrace_crr_free(SEGTYPE, SEGTYPE, c->seg);
- mseg_destroy(mk->ma, flags, mk, c->seg, c->size);
+ mseg_destroy(ma, flags, c->seg, c->size);
mseg_cache_clear_node(c);
- erts_circleq_push_head(&(mk->cache_free), c);
-
- mk->segments.current.watermark--;
- mk->cache_size--;
+ erts_circleq_push_head(&(ma->cache_free), c);
+ ma->segments.current.watermark--;
+ ma->cache_size--;
}
- ASSERT( mk->cache_size >= 0 );
+ ASSERT(ma->cache_size >= 0);
- return mk->cache_size;
+ return ma->cache_size;
}
-/* mseg_check_memkind_cache
- * - Check if we can empty some cached segments in this
- * MemKind.
+/* mseg_check_cache
+ * - Check if we can empty some cached segments in this allocator
*/
-static Uint mseg_check_memkind_cache(MemKind *mk) {
+static Uint mseg_check_cache(ErtsMsegAllctr_t *ma) {
int i;
- ERTS_DBG_MK_CHK_THR_ACCESS(mk);
+ ERTS_DBG_MA_CHK_THR_ACCESS(ma);
for (i = 0; i < CACHE_AREAS; i++) {
- if (!erts_circleq_is_empty(&(mk->cache_powered_node[i])))
- return mseg_drop_one_memkind_cache_size(mk, ERTS_MSEG_FLG_2POW, &(mk->cache_powered_node[i]));
+ if (!erts_circleq_is_empty(&(ma->cache_powered_node[i])))
+ return mseg_drop_one_cache_size(ma, ERTS_MSEG_FLG_2POW, &(ma->cache_powered_node[i]));
}
- if (!erts_circleq_is_empty(&(mk->cache_unpowered_node)))
- return mseg_drop_one_memkind_cache_size(mk, ERTS_MSEG_FLG_NONE, &(mk->cache_unpowered_node));
+ if (!erts_circleq_is_empty(&(ma->cache_unpowered_node)))
+ return mseg_drop_one_cache_size(ma, ERTS_MSEG_FLG_NONE, &(ma->cache_unpowered_node));
return 0;
}
/* mseg_cache_check
* - Check if we have some cache we can purge
- * in any of the memkinds.
*/
static void mseg_cache_check(ErtsMsegAllctr_t *ma) {
- MemKind* mk;
Uint empty_cache = 1;
ERTS_MSEG_LOCK(ma);
- for (mk = ma->mk_list; mk; mk = mk->next) {
- if (mseg_check_memkind_cache(mk))
- empty_cache = 0;
- }
+ if (mseg_check_cache(ma))
+ empty_cache = 0;
/* If all MemKinds caches are empty,
* remove aux-work callback
@@ -709,7 +663,7 @@ static void mseg_cache_check(ErtsMsegAllctr_t *ma) {
/* erts_mseg_cache_check
* - This is a callback that is scheduled as aux-work from
* schedulers and is called at some interval if we have a cache
- * on this mseg-allocator and memkind.
+ * on this mseg-allocator.
* - Purpose: Empty cache slowly so we don't collect mapped areas
* and bloat memory.
*/
@@ -719,42 +673,32 @@ void erts_mseg_cache_check(void) {
}
-/* *_mseg_clear_*_cache
+/* mseg_clear_cache
* Remove cached segments from the allocator completely
*/
-static void mseg_clear_memkind_cache(MemKind *mk) {
+
+static void mseg_clear_cache(ErtsMsegAllctr_t *ma) {
int i;
+ ERTS_MSEG_LOCK(ma);
+ ERTS_DBG_MA_CHK_THR_ACCESS(ma);
/* drop pow2 caches */
for (i = 0; i < CACHE_AREAS; i++) {
- if (erts_circleq_is_empty(&(mk->cache_powered_node[i])))
+ if (erts_circleq_is_empty(&(ma->cache_powered_node[i])))
continue;
- mseg_drop_memkind_cache_size(mk, ERTS_MSEG_FLG_2POW, &(mk->cache_powered_node[i]));
- ASSERT(erts_circleq_is_empty(&(mk->cache_powered_node[i])));
+ mseg_drop_cache_size(ma, ERTS_MSEG_FLG_2POW, &(ma->cache_powered_node[i]));
+ ASSERT(erts_circleq_is_empty(&(ma->cache_powered_node[i])));
}
/* drop varied caches */
- if (!erts_circleq_is_empty(&(mk->cache_unpowered_node)))
- mseg_drop_memkind_cache_size(mk, ERTS_MSEG_FLG_NONE, &(mk->cache_unpowered_node));
-
- ASSERT(erts_circleq_is_empty(&(mk->cache_unpowered_node)));
- ASSERT(mk->cache_size == 0);
-}
-
-static void mseg_clear_cache(ErtsMsegAllctr_t *ma) {
- MemKind* mk;
-
- ERTS_MSEG_LOCK(ma);
- ERTS_DBG_MA_CHK_THR_ACCESS(ma);
+ if (!erts_circleq_is_empty(&(ma->cache_unpowered_node)))
+ mseg_drop_cache_size(ma, ERTS_MSEG_FLG_NONE, &(ma->cache_unpowered_node));
-
- for (mk = ma->mk_list; mk; mk = mk->next) {
- mseg_clear_memkind_cache(mk);
- }
+ ASSERT(erts_circleq_is_empty(&(ma->cache_unpowered_node)));
+ ASSERT(ma->cache_size == 0);
INC_CC(ma, clear_cache);
-
ERTS_MSEG_UNLOCK(ma);
}
@@ -763,25 +707,12 @@ void erts_mseg_clear_cache(void) {
mseg_clear_cache(ERTS_MSEG_ALLCTR_IX(0));
}
-
-
-static ERTS_INLINE MemKind* memkind(ErtsMsegAllctr_t *ma,
- const ErtsMsegOpt_t *opt)
-{
-#if HALFWORD_HEAP
- return opt->low_mem ? &ma->low_mem : &ma->hi_mem;
-#else
- return &ma->the_mem;
-#endif
-}
-
static void *
mseg_alloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, UWord *size_p,
Uint flags, const ErtsMsegOpt_t *opt)
{
UWord size;
void *seg;
- MemKind* mk = memkind(ma, opt);
INC_CC(ma, alloc);
@@ -795,10 +726,10 @@ mseg_alloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, UWord *size_p,
}
}
- if (opt->cache && mk->cache_size > 0 && (seg = cache_get_segment(mk, &size, flags)) != NULL)
+ if (opt->cache && ma->cache_size > 0 && (seg = cache_get_segment(ma, &size, flags)) != NULL)
goto done;
- seg = mseg_create(ma, flags, mk, &size);
+ seg = mseg_create(ma, flags, &size);
if (!seg)
*size_p = 0;
@@ -808,7 +739,7 @@ done:
if (erts_mtrace_enabled)
erts_mtrace_crr_alloc(seg, atype, ERTS_MTRACE_SEGMENT_ID, size);
- ERTS_MSEG_ALLOC_STAT(mk,size);
+ ERTS_MSEG_ALLOC_STAT(ma,size);
}
return seg;
@@ -819,11 +750,9 @@ static void
mseg_dealloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg, UWord size,
Uint flags, const ErtsMsegOpt_t *opt)
{
- MemKind* mk = memkind(ma, opt);
+ ERTS_MSEG_DEALLOC_STAT(ma,size);
- ERTS_MSEG_DEALLOC_STAT(mk,size);
-
- if (opt->cache && cache_bless_segment(mk, seg, size, flags)) {
+ if (opt->cache && cache_bless_segment(ma, seg, size, flags)) {
schedule_cache_check(ma);
goto done;
}
@@ -831,7 +760,7 @@ mseg_dealloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg, UWord size,
if (erts_mtrace_enabled)
erts_mtrace_crr_free(atype, SEGTYPE, seg);
- mseg_destroy(ma, flags, mk, seg, size);
+ mseg_destroy(ma, flags, seg, size);
done:
@@ -842,7 +771,6 @@ static void *
mseg_realloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg,
UWord old_size, UWord *new_size_p, Uint flags, const ErtsMsegOpt_t *opt)
{
- MemKind* mk;
void *new_seg;
UWord new_size;
@@ -861,7 +789,6 @@ mseg_realloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg,
return NULL;
}
- mk = memkind(ma, opt);
new_seg = seg;
if (!MSEG_FLG_IS_2POW(flags))
@@ -876,7 +803,7 @@ mseg_realloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg,
if (new_size > old_size) {
if (opt->preserv) {
- new_seg = mseg_recreate(ma, flags, mk, (void *) seg, old_size, &new_size);
+ new_seg = mseg_recreate(ma, flags, (void *) seg, old_size, &new_size);
if (!new_seg)
new_size = old_size;
}
@@ -896,7 +823,7 @@ mseg_realloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg,
new_size = old_size;
}
else {
- new_seg = mseg_recreate(ma, flags, mk, (void *) seg, old_size, &new_size);
+ new_seg = mseg_recreate(ma, flags, (void *) seg, old_size, &new_size);
if (!new_seg)
new_size = old_size;
}
@@ -910,7 +837,7 @@ mseg_realloc(ErtsMsegAllctr_t *ma, ErtsAlcType_t atype, void *seg,
ASSERT(!MSEG_FLG_IS_2POW(flags) || IS_2POW(new_size));
*new_size_p = new_size;
- ERTS_MSEG_REALLOC_STAT(mk, old_size, new_size);
+ ERTS_MSEG_REALLOC_STAT(ma, old_size, new_size);
return new_seg;
}
@@ -1180,63 +1107,63 @@ info_calls(ErtsMsegAllctr_t *ma, int *print_to_p, void *print_to_arg, Uint **hpp
}
static Eterm
-info_status(ErtsMsegAllctr_t *ma, MemKind* mk, int *print_to_p, void *print_to_arg,
+info_status(ErtsMsegAllctr_t *ma, int *print_to_p, void *print_to_arg,
int begin_new_max_period, Uint **hpp, Uint *szp)
{
Eterm res = THE_NON_VALUE;
- if (mk->segments.max_ever.no < mk->segments.max.no)
- mk->segments.max_ever.no = mk->segments.max.no;
- if (mk->segments.max_ever.sz < mk->segments.max.sz)
- mk->segments.max_ever.sz = mk->segments.max.sz;
+ if (ma->segments.max_ever.no < ma->segments.max.no)
+ ma->segments.max_ever.no = ma->segments.max.no;
+ if (ma->segments.max_ever.sz < ma->segments.max.sz)
+ ma->segments.max_ever.sz = ma->segments.max.sz;
if (print_to_p) {
int to = *print_to_p;
void *arg = print_to_arg;
- erts_print(to, arg, "cached_segments: %beu\n", mk->cache_size);
- erts_print(to, arg, "cache_hits: %beu\n", mk->cache_hits);
+ erts_print(to, arg, "cached_segments: %beu\n", ma->cache_size);
+ erts_print(to, arg, "cache_hits: %beu\n", ma->cache_hits);
erts_print(to, arg, "segments: %beu %beu %beu\n",
- mk->segments.current.no, mk->segments.max.no, mk->segments.max_ever.no);
+ ma->segments.current.no, ma->segments.max.no, ma->segments.max_ever.no);
erts_print(to, arg, "segments_size: %beu %beu %beu\n",
- mk->segments.current.sz, mk->segments.max.sz, mk->segments.max_ever.sz);
+ ma->segments.current.sz, ma->segments.max.sz, ma->segments.max_ever.sz);
erts_print(to, arg, "segments_watermark: %beu\n",
- mk->segments.current.watermark);
+ ma->segments.current.watermark);
}
if (hpp || szp) {
res = NIL;
add_2tup(hpp, szp, &res,
am.segments_watermark,
- bld_unstable_uint(hpp, szp, mk->segments.current.watermark));
+ bld_unstable_uint(hpp, szp, ma->segments.current.watermark));
add_4tup(hpp, szp, &res,
am.segments_size,
- bld_unstable_uint(hpp, szp, mk->segments.current.sz),
- bld_unstable_uint(hpp, szp, mk->segments.max.sz),
- bld_unstable_uint(hpp, szp, mk->segments.max_ever.sz));
+ bld_unstable_uint(hpp, szp, ma->segments.current.sz),
+ bld_unstable_uint(hpp, szp, ma->segments.max.sz),
+ bld_unstable_uint(hpp, szp, ma->segments.max_ever.sz));
add_4tup(hpp, szp, &res,
am.segments,
- bld_unstable_uint(hpp, szp, mk->segments.current.no),
- bld_unstable_uint(hpp, szp, mk->segments.max.no),
- bld_unstable_uint(hpp, szp, mk->segments.max_ever.no));
+ bld_unstable_uint(hpp, szp, ma->segments.current.no),
+ bld_unstable_uint(hpp, szp, ma->segments.max.no),
+ bld_unstable_uint(hpp, szp, ma->segments.max_ever.no));
add_2tup(hpp, szp, &res,
am.cache_hits,
- bld_unstable_uint(hpp, szp, mk->cache_hits));
+ bld_unstable_uint(hpp, szp, ma->cache_hits));
add_2tup(hpp, szp, &res,
am.cached_segments,
- bld_unstable_uint(hpp, szp, mk->cache_size));
+ bld_unstable_uint(hpp, szp, ma->cache_size));
}
if (begin_new_max_period) {
- mk->segments.max.no = mk->segments.current.no;
- mk->segments.max.sz = mk->segments.current.sz;
+ ma->segments.max.no = ma->segments.current.no;
+ ma->segments.max.sz = ma->segments.current.sz;
}
return res;
}
-static Eterm info_memkind(ErtsMsegAllctr_t *ma, MemKind* mk, int *print_to_p, void *print_to_arg,
+static Eterm info_memkind(ErtsMsegAllctr_t *ma, int *print_to_p, void *print_to_arg,
int begin_max_per, Uint **hpp, Uint *szp)
{
Eterm res = THE_NON_VALUE;
@@ -1244,15 +1171,15 @@ static Eterm info_memkind(ErtsMsegAllctr_t *ma, MemKind* mk, int *print_to_p, vo
Eterm values[3];
if (print_to_p) {
- erts_print(*print_to_p, print_to_arg, "memory kind: %s\n", mk->name);
+ erts_print(*print_to_p, print_to_arg, "memory kind: %s\n", "all memory");
}
if (hpp || szp) {
atoms[0] = am.name;
atoms[1] = am.status;
atoms[2] = am.calls;
- values[0] = erts_bld_string(hpp, szp, mk->name);
+ values[0] = erts_bld_string(hpp, szp, "all memory");
}
- values[1] = info_status(ma, mk, print_to_p, print_to_arg, begin_max_per, hpp, szp);
+ values[1] = info_status(ma, print_to_p, print_to_arg, begin_max_per, hpp, szp);
values[2] = info_calls(ma, print_to_p, print_to_arg, hpp, szp);
if (hpp || szp)
@@ -1261,7 +1188,6 @@ static Eterm info_memkind(ErtsMsegAllctr_t *ma, MemKind* mk, int *print_to_p, vo
return res;
}
-
static Eterm
info_version(ErtsMsegAllctr_t *ma, int *print_to_p, void *print_to_arg, Uint **hpp, Uint *szp)
{
@@ -1326,12 +1252,7 @@ erts_mseg_info(int ix,
ERTS_MSEG_LOCK(ma);
ERTS_DBG_MA_CHK_THR_ACCESS(ma);
-#if HALFWORD_HEAP
- values[n++] = info_memkind(ma, &ma->low_mem, print_to_p, print_to_arg, begin_max_per, hpp, szp);
- values[n++] = info_memkind(ma, &ma->hi_mem, print_to_p, print_to_arg, begin_max_per, hpp, szp);
-#else
- values[n++] = info_memkind(ma, &ma->the_mem, print_to_p, print_to_arg, begin_max_per, hpp, szp);
-#endif
+ values[n++] = info_memkind(ma, print_to_p, print_to_arg, begin_max_per, hpp, szp);
if (hpp || szp)
res = bld_2tup_list(hpp, szp, n, atoms, values);
@@ -1408,13 +1329,10 @@ Uint
erts_mseg_no(const ErtsMsegOpt_t *opt)
{
ErtsMsegAllctr_t *ma = ERTS_MSEG_ALLCTR_OPT(opt);
- MemKind* mk;
- Uint n = 0;
+ Uint n;
ERTS_MSEG_LOCK(ma);
ERTS_DBG_MA_CHK_THR_ACCESS(ma);
- for (mk=ma->mk_list; mk; mk=mk->next) {
- n += mk->segments.current.no;
- }
+ n = ma->segments.current.no;
ERTS_MSEG_UNLOCK(ma);
return n;
}
@@ -1426,16 +1344,16 @@ erts_mseg_unit_size(void)
}
-static void mem_kind_init(ErtsMsegAllctr_t *ma, MemKind* mk, const char* name)
+static void mem_cache_init(ErtsMsegAllctr_t *ma)
{
int i;
/* Clear all cache headers */
- mseg_cache_clear_node(&(mk->cache_free));
- mseg_cache_clear_node(&(mk->cache_unpowered_node));
+ mseg_cache_clear_node(&(ma->cache_free));
+ mseg_cache_clear_node(&(ma->cache_unpowered_node));
for (i = 0; i < CACHE_AREAS; i++) {
- mseg_cache_clear_node(&(mk->cache_powered_node[i]));
+ mseg_cache_clear_node(&(ma->cache_powered_node[i]));
}
/* Populate cache free list */
@@ -1443,25 +1361,20 @@ static void mem_kind_init(ErtsMsegAllctr_t *ma, MemKind* mk, const char* name)
ASSERT(ma->max_cache_size <= MAX_CACHE_SIZE);
for (i = 0; i < ma->max_cache_size; i++) {
- mseg_cache_clear_node(&(mk->cache[i]));
- erts_circleq_push_head(&(mk->cache_free), &(mk->cache[i]));
+ mseg_cache_clear_node(&(ma->cache[i]));
+ erts_circleq_push_head(&(ma->cache_free), &(ma->cache[i]));
}
- mk->cache_size = 0;
- mk->cache_hits = 0;
-
- mk->segments.current.watermark = 0;
- mk->segments.current.no = 0;
- mk->segments.current.sz = 0;
- mk->segments.max.no = 0;
- mk->segments.max.sz = 0;
- mk->segments.max_ever.no = 0;
- mk->segments.max_ever.sz = 0;
-
- mk->ma = ma;
- mk->name = name;
- mk->next = ma->mk_list;
- ma->mk_list = mk;
+ ma->cache_size = 0;
+ ma->cache_hits = 0;
+
+ ma->segments.current.watermark = 0;
+ ma->segments.current.no = 0;
+ ma->segments.current.sz = 0;
+ ma->segments.max.no = 0;
+ ma->segments.max.sz = 0;
+ ma->segments.max_ever.no = 0;
+ ma->segments.max_ever.sz = 0;
}
void
@@ -1488,15 +1401,6 @@ erts_mseg_init(ErtsMsegInit_t *init)
erts_mtx_init(&init_atoms_mutex, "mseg_init_atoms");
-#if HALFWORD_HEAP
- if (sizeof(void *) != 8)
- erl_exit(-1,"Halfword emulator cannot be run in 32bit mode");
-
- init->mmap.virtual_range.start = (char *) sbrk(0);
- init->mmap.virtual_range.end = (char *) 0x100000000UL;
- init->mmap.sco = 0;
-#endif
-
erts_mmap_init(&init->mmap);
if (!IS_2POW(GET_PAGE_SIZE))
@@ -1529,14 +1433,7 @@ erts_mseg_init(ErtsMsegInit_t *init)
if (ma->max_cache_size > MAX_CACHE_SIZE)
ma->max_cache_size = MAX_CACHE_SIZE;
- ma->mk_list = NULL;
-
-#if HALFWORD_HEAP
- mem_kind_init(ma, &ma->low_mem, "low memory");
- mem_kind_init(ma, &ma->hi_mem, "high memory");
-#else
- mem_kind_init(ma, &ma->the_mem, "all memory");
-#endif
+ mem_cache_init(ma);
sys_memzero((void *) &ma->calls, sizeof(ErtsMsegCalls));
}
@@ -1545,13 +1442,8 @@ erts_mseg_init(ErtsMsegInit_t *init)
static ERTS_INLINE Uint tot_cache_size(ErtsMsegAllctr_t *ma)
{
- MemKind* mk;
- Uint sz = 0;
ERTS_DBG_MA_CHK_THR_ACCESS(ma);
- for (mk=ma->mk_list; mk; mk=mk->next) {
- sz += mk->cache_size;
- }
- return sz;
+ return ma->cache_size;
}
/*
diff --git a/erts/emulator/sys/common/erl_mseg.h b/erts/emulator/sys/common/erl_mseg.h
index ba04e919fc..656484702d 100644
--- a/erts/emulator/sys/common/erl_mseg.h
+++ b/erts/emulator/sys/common/erl_mseg.h
@@ -87,9 +87,6 @@ typedef struct {
UWord abs_shrink_th;
UWord rel_shrink_th;
int sched_spec;
-#if HALFWORD_HEAP
- int low_mem;
-#endif
} ErtsMsegOpt_t;
extern const ErtsMsegOpt_t erts_mseg_default_opt;