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-rw-r--r--erts/emulator/beam/atom.names1
-rw-r--r--erts/emulator/beam/erl_alloc.types2
-rwxr-xr-xerts/emulator/beam/erl_bif_info.c19
-rw-r--r--erts/emulator/beam/erl_gc.c173
-rw-r--r--erts/emulator/beam/erl_init.c2
-rw-r--r--erts/emulator/beam/erl_process.c2
-rw-r--r--erts/emulator/beam/erl_process.h7
-rwxr-xr-xerts/emulator/beam/global.h6
-rw-r--r--erts/preloaded/src/erlang.erl20
9 files changed, 187 insertions, 45 deletions
diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names
index ce60bb9bbc..9e12080732 100644
--- a/erts/emulator/beam/atom.names
+++ b/erts/emulator/beam/atom.names
@@ -248,6 +248,7 @@ atom get_data
atom get_seq_token
atom get_tcw
atom getenv
+atom gather_gc_info_result
atom gather_sched_wall_time_result
atom getting_linked
atom getting_unlinked
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index 5a92ab7f24..f913525726 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -366,6 +366,7 @@ type MONITOR_SH STANDARD_LOW PROCESSES monitor_sh
type NLINK_SH STANDARD_LOW PROCESSES nlink_sh
type AINFO_REQ STANDARD_LOW SYSTEM alloc_info_request
type SCHED_WTIME_REQ STANDARD_LOW SYSTEM sched_wall_time_request
+type GC_INFO_REQ STANDARD_LOW SYSTEM gc_info_request
+else # "fullword"
@@ -383,6 +384,7 @@ type MONITOR_SH FIXED_SIZE PROCESSES monitor_sh
type NLINK_SH FIXED_SIZE PROCESSES nlink_sh
type AINFO_REQ SHORT_LIVED SYSTEM alloc_info_request
type SCHED_WTIME_REQ SHORT_LIVED SYSTEM sched_wall_time_request
+type GC_INFO_REQ SHORT_LIVED SYSTEM gc_info_request
+endif
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 54eefe8d12..1744afbae1 100755
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -59,6 +59,7 @@ static Export* alloc_info_trap = NULL;
static Export* alloc_sizes_trap = NULL;
static Export *gather_sched_wall_time_res_trap;
+static Export *gather_gc_info_res_trap;
#define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1)
@@ -3103,18 +3104,10 @@ BIF_RETTYPE statistics_1(BIF_ALIST_1)
res = TUPLE2(hp, cs, SMALL_ZERO);
BIF_RET(res);
} else if (BIF_ARG_1 == am_garbage_collection) {
- Uint hsz = 4;
- ErtsGCInfo gc_info;
- Eterm gcs;
- Eterm recl;
- erts_gc_info(&gc_info);
- (void) erts_bld_uint(NULL, &hsz, gc_info.garbage_collections);
- (void) erts_bld_uint(NULL, &hsz, gc_info.reclaimed);
- hp = HAlloc(BIF_P, hsz);
- gcs = erts_bld_uint(&hp, NULL, gc_info.garbage_collections);
- recl = erts_bld_uint(&hp, NULL, gc_info.reclaimed);
- res = TUPLE3(hp, gcs, recl, SMALL_ZERO);
- BIF_RET(res);
+ res = erts_gc_info_request(BIF_P);
+ if (is_non_value(res))
+ BIF_RET(am_undefined);
+ BIF_TRAP1(gather_gc_info_res_trap, BIF_P, res);
} else if (BIF_ARG_1 == am_reductions) {
Uint reds;
Uint diff;
@@ -4082,6 +4075,8 @@ erts_bif_info_init(void)
alloc_sizes_trap = erts_export_put(am_erlang, am_alloc_sizes, 1);
gather_sched_wall_time_res_trap
= erts_export_put(am_erlang, am_gather_sched_wall_time_result, 1);
+ gather_gc_info_res_trap
+ = erts_export_put(am_erlang, am_gather_gc_info_result, 1);
process_info_init();
os_info_init();
}
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index 298909c921..0d12e658d9 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -47,10 +47,6 @@
*/
#define ALENGTH(a) (sizeof(a)/sizeof(a[0]))
-static erts_smp_spinlock_t info_lck;
-static Uint garbage_cols; /* no of garbage collections */
-static Uint reclaimed; /* no of words reclaimed in GCs */
-
# define STACK_SZ_ON_HEAP(p) ((p)->hend - (p)->stop)
# define OverRunCheck(P) \
if ((P)->stop < (P)->htop) { \
@@ -120,6 +116,8 @@ static void offset_rootset(Process *p, Sint offs, char* area, Uint area_size,
static void offset_off_heap(Process* p, Sint offs, char* area, Uint area_size);
static void offset_mqueue(Process *p, Sint offs, char* area, Uint area_size);
+static void init_gc_info(ErtsGCInfo *gcip);
+
#ifdef HARDDEBUG
static void disallow_heap_frag_ref_in_heap(Process* p);
static void disallow_heap_frag_ref_in_old_heap(Process* p);
@@ -137,13 +135,41 @@ static int num_heap_sizes; /* Number of heap sizes. */
Uint erts_test_long_gc_sleep; /* Only used for testing... */
+typedef struct {
+ Process *proc;
+ Eterm ref;
+ Eterm ref_heap[REF_THING_SIZE];
+ Uint req_sched;
+ erts_smp_atomic32_t refc;
+} ErtsGCInfoReq;
+
+#if !HALFWORD_HEAP
+ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(gcireq,
+ ErtsGCInfoReq,
+ 5,
+ ERTS_ALC_T_GC_INFO_REQ)
+#else
+static ERTS_INLINE ErtsGCInfoReq *
+gcireq_alloc(void)
+{
+ return erts_alloc(ERTS_ALC_T_GC_INFO_REQ,
+ sizeof(ErtsGCInfoReq));
+}
+
+static ERTS_INLINE void
+gcireq_free(ErtsGCInfoReq *ptr)
+{
+ erts_free(ERTS_ALC_T_GC_INFO_REQ, ptr);
+}
+#endif
+
/*
* Initialize GC global data.
*/
void
erts_init_gc(void)
{
- int i = 0;
+ int i = 0, ix;
Sint max_heap_size = 0;
ASSERT(offsetof(ProcBin,thing_word) == offsetof(struct erl_off_heap_header,thing_word));
@@ -156,9 +182,6 @@ erts_init_gc(void)
ASSERT(offsetof(ProcBin,next) == offsetof(ErlFunThing,next));
ASSERT(offsetof(ProcBin,next) == offsetof(ExternalThing,next));
- erts_smp_spinlock_init(&info_lck, "gc_info");
- garbage_cols = 0;
- reclaimed = 0;
erts_test_long_gc_sleep = 0;
/*
@@ -199,6 +222,16 @@ erts_init_gc(void)
}
}
num_heap_sizes = i;
+
+ for (ix = 0; ix < erts_no_schedulers; ix++) {
+ ErtsSchedulerData *esdp = ERTS_SCHEDULER_IX(ix);
+ init_gc_info(&esdp->gc_info);
+ }
+
+#if !HALFWORD_HEAP
+ init_gcireq_alloc();
+#endif
+
}
/*
@@ -287,17 +320,6 @@ erts_heap_sizes(Process* p)
return res;
}
-void
-erts_gc_info(ErtsGCInfo *gcip)
-{
- if (gcip) {
- erts_smp_spin_lock(&info_lck);
- gcip->garbage_collections = garbage_cols;
- gcip->reclaimed = reclaimed;
- erts_smp_spin_unlock(&info_lck);
- }
-}
-
void
erts_offset_heap(Eterm* hp, Uint sz, Sint offs, Eterm* low, Eterm* high)
{
@@ -378,6 +400,7 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj)
Uint reclaimed_now = 0;
int done = 0;
Uint ms1, s1, us1;
+ ErtsSchedulerData *esdp = erts_get_scheduler_data();
#ifdef USE_VM_PROBES
DTRACE_CHARBUF(pidbuf, DTRACE_TERM_BUF_SIZE);
#endif
@@ -455,11 +478,9 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj)
monitor_large_heap(p);
}
- erts_smp_spin_lock(&info_lck);
- garbage_cols++;
- reclaimed += reclaimed_now;
- erts_smp_spin_unlock(&info_lck);
-
+ esdp->gc_info.garbage_cols++;
+ esdp->gc_info.reclaimed += reclaimed_now;
+
FLAGS(p) &= ~F_FORCE_GC;
#ifdef CHECK_FOR_HOLES
@@ -2543,6 +2564,110 @@ offset_rootset(Process *p, Sint offs, char* area, Uint area_size,
offset_one_rootset(p, offs, area, area_size, objv, nobj);
}
+static void
+init_gc_info(ErtsGCInfo *gcip)
+{
+ gcip->reclaimed = 0;
+ gcip->garbage_cols = 0;
+}
+
+static void
+reply_gc_info(void *vgcirp)
+{
+ Uint64 reclaimed = 0, garbage_cols = 0;
+ ErtsSchedulerData *esdp = erts_get_scheduler_data();
+ ErtsGCInfoReq *gcirp = (ErtsGCInfoReq *) vgcirp;
+ ErtsProcLocks rp_locks = (gcirp->req_sched == esdp->no
+ ? ERTS_PROC_LOCK_MAIN
+ : 0);
+ Process *rp = gcirp->proc;
+ Eterm ref_copy = NIL, msg;
+ Eterm *hp = NULL;
+ Eterm **hpp;
+ Uint sz, *szp;
+ ErlOffHeap *ohp = NULL;
+ ErlHeapFragment *bp = NULL;
+
+ ASSERT(esdp);
+
+ reclaimed = esdp->gc_info.reclaimed;
+ garbage_cols = esdp->gc_info.garbage_cols;
+
+ sz = 0;
+ hpp = NULL;
+ szp = &sz;
+
+ while (1) {
+ if (hpp)
+ ref_copy = STORE_NC(hpp, ohp, gcirp->ref);
+ else
+ *szp += REF_THING_SIZE;
+
+ msg = erts_bld_tuple(hpp, szp, 3,
+ make_small(esdp->no),
+ erts_bld_uint64(hpp, szp, garbage_cols),
+ erts_bld_uint64(hpp, szp, reclaimed));
+
+ msg = erts_bld_tuple(hpp, szp, 2, ref_copy, msg);
+ if (hpp)
+ break;
+
+ hp = erts_alloc_message_heap(sz, &bp, &ohp, rp, &rp_locks);
+ szp = NULL;
+ hpp = &hp;
+ }
+
+ erts_queue_message(rp, &rp_locks, bp, msg, NIL
+#ifdef USE_VM_PROBES
+ , NIL
+#endif
+ );
+
+ if (gcirp->req_sched == esdp->no)
+ rp_locks &= ~ERTS_PROC_LOCK_MAIN;
+
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+
+ erts_smp_proc_dec_refc(rp);
+
+ if (erts_smp_atomic32_dec_read_nob(&gcirp->refc) == 0)
+ gcireq_free(vgcirp);
+}
+
+Eterm
+erts_gc_info_request(Process *c_p)
+{
+ ErtsSchedulerData *esdp = ERTS_PROC_GET_SCHDATA(c_p);
+ Eterm ref;
+ ErtsGCInfoReq *gcirp;
+ Eterm *hp;
+
+ gcirp = gcireq_alloc();
+ ref = erts_make_ref(c_p);
+ hp = &gcirp->ref_heap[0];
+
+ gcirp->proc = c_p;
+ gcirp->ref = STORE_NC(&hp, NULL, ref);
+ gcirp->req_sched = esdp->no;
+ erts_smp_atomic32_init_nob(&gcirp->refc,
+ (erts_aint32_t) erts_no_schedulers);
+
+ erts_smp_proc_add_refc(c_p, (Sint32) erts_no_schedulers);
+
+#ifdef ERTS_SMP
+ if (erts_no_schedulers > 1)
+ erts_schedule_multi_misc_aux_work(1,
+ erts_no_schedulers,
+ reply_gc_info,
+ (void *) gcirp);
+#endif
+
+ reply_gc_info((void *) gcirp);
+
+ return ref;
+}
+
#if defined(DEBUG) || defined(ERTS_OFFHEAP_DEBUG)
static int
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index e6a96d427f..df8313fbdb 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -294,13 +294,13 @@ erl_init(int ncpu,
init_benchmarking();
erts_init_monitors();
- erts_init_gc();
erts_init_time();
erts_init_sys_common_misc();
erts_init_process(ncpu, proc_tab_sz);
erts_init_scheduling(no_schedulers,
no_schedulers_online);
erts_init_cpu_topology(); /* Must be after init_scheduling */
+ erts_init_gc(); /* Must be after init_scheduling */
erts_alloc_late_init();
H_MIN_SIZE = erts_next_heap_size(H_MIN_SIZE, 0);
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 7415a5721f..b03987a67e 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -4670,8 +4670,8 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
esdp->reductions = 0;
init_sched_wall_time(&esdp->sched_wall_time);
-
erts_port_task_handle_init(&esdp->nosuspend_port_task_handle);
+
}
init_misc_aux_work();
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 5a1f6bbe8d..7e1af9923b 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -420,6 +420,11 @@ typedef struct {
} ErtsSchedWallTime;
typedef struct {
+ Uint64 reclaimed;
+ Uint64 garbage_cols;
+} ErtsGCInfo;
+
+typedef struct {
int sched;
erts_aint32_t aux_work;
} ErtsDelayedAuxWorkWakeupJob;
@@ -507,6 +512,7 @@ struct ErtsSchedulerData_ {
Uint64 reductions;
ErtsSchedWallTime sched_wall_time;
+ ErtsGCInfo gc_info;
ErtsPortTaskHandle nosuspend_port_task_handle;
#ifdef ERTS_DO_VERIFY_UNUSED_TEMP_ALLOC
@@ -1126,6 +1132,7 @@ void erts_early_init_scheduling(int);
void erts_init_scheduling(int, int);
Eterm erts_sched_wall_time_request(Process *c_p, int set, int enable);
+Eterm erts_gc_info_request(Process *c_p);
Uint64 erts_get_proc_interval(void);
Uint64 erts_ensure_later_proc_interval(Uint64);
Uint64 erts_step_proc_interval(void);
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 012c1c7e6a..ef6320493f 100755
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -688,12 +688,6 @@ void MD5Final(unsigned char [16], MD5_CTX *);
/* ggc.c */
-
-typedef struct {
- Uint garbage_collections;
- Uint reclaimed;
-} ErtsGCInfo;
-
void erts_gc_info(ErtsGCInfo *gcip);
void erts_init_gc(void);
int erts_garbage_collect(Process*, int, Eterm*, int);
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index 7106c0a4fb..6929ca3fa5 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -45,7 +45,8 @@
-export([alloc_info/1, alloc_sizes/1]).
-export([gather_sched_wall_time_result/1,
- await_sched_wall_time_modifications/2]).
+ await_sched_wall_time_modifications/2,
+ gather_gc_info_result/1]).
-deprecated([hash/2]).
@@ -3536,3 +3537,20 @@ sched_wall_time(Ref, N, Acc) ->
{Ref, undefined} -> sched_wall_time(Ref, N-1, undefined);
{Ref, SWT} -> sched_wall_time(Ref, N-1, [SWT|Acc])
end.
+
+-spec erlang:gather_gc_info_result(Ref) -> [{pos_integer(),
+ pos_integer(),
+ 0}] when
+ Ref :: reference().
+
+gather_gc_info_result(Ref) when erlang:is_reference(Ref) ->
+ gc_info(Ref, erlang:system_info(schedulers), {0,0}).
+
+gc_info(_Ref, 0, {Colls,Recl}) ->
+ {Colls,Recl,0};
+gc_info(Ref, N, {OrigColls,OrigRecl}) ->
+ receive
+ {Ref, {_,Colls, Recl}} ->
+ gc_info(Ref, N-1, {Colls+OrigColls,Recl+OrigRecl})
+ end.
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 15:57:26 +0000