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-rw-r--r--erts/emulator/beam/break.c23
-rw-r--r--erts/emulator/beam/erl_bif_port.c21
-rw-r--r--erts/emulator/beam/erl_gc.c48
-rw-r--r--erts/emulator/beam/erl_port.h1
-rw-r--r--erts/emulator/beam/erl_process.c77
-rw-r--r--erts/emulator/beam/erl_process.h2
-rw-r--r--erts/emulator/beam/erl_process_dump.c72
-rw-r--r--erts/emulator/beam/io.c101
-rw-r--r--lib/observer/src/cdv_port_cb.erl17
-rw-r--r--lib/observer/src/cdv_proc_cb.erl4
-rw-r--r--lib/observer/src/cdv_sched_cb.erl18
-rw-r--r--lib/observer/src/crashdump_viewer.erl188
-rw-r--r--lib/observer/src/crashdump_viewer.hrl16
-rw-r--r--lib/stdlib/test/re_SUITE.erl15
14 files changed, 484 insertions, 119 deletions
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index e4c2801ea2..5ace997344 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -336,6 +336,12 @@ print_process_info(fmtfn_t to, void *to_arg, Process *p)
erts_print(to, to_arg, "Heap unused: %bpu\n", (p->hend - p->htop));
erts_print(to, to_arg, "OldHeap unused: %bpu\n",
(OLD_HEAP(p) == NULL) ? 0 : (OLD_HEND(p) - OLD_HTOP(p)) );
+ erts_print(to, to_arg, "BinVHeap: %b64u\n", p->off_heap.overhead);
+ erts_print(to, to_arg, "OldBinVHeap: %b64u\n", BIN_OLD_VHEAP(p));
+ erts_print(to, to_arg, "BinVHeap unused: %b64u\n",
+ BIN_VHEAP_SZ(p) - p->off_heap.overhead);
+ erts_print(to, to_arg, "OldBinVHeap unused: %b64u\n",
+ BIN_OLD_VHEAP_SZ(p) - BIN_OLD_VHEAP(p));
erts_print(to, to_arg, "Memory: %beu\n", erts_process_memory(p, !0));
if (garbing) {
@@ -905,6 +911,23 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
erts_print_scheduler_info(to, to_arg, ERTS_SCHEDULER_IX(i)),
erts_cbprintf(to, to_arg, "** crashed **\n"));
}
+#ifdef ERTS_DIRTY_SCHEDULERS
+ for (i = 0; i < erts_no_dirty_cpu_schedulers; i++) {
+ ERTS_SYS_TRY_CATCH(
+ erts_print_scheduler_info(to, to_arg, ERTS_DIRTY_CPU_SCHEDULER_IX(i)),
+ erts_cbprintf(to, to_arg, "** crashed **\n"));
+ }
+ erts_cbprintf(to, to_arg, "=dirty_cpu_run_queue\n");
+ erts_print_run_queue_info(to, to_arg, ERTS_DIRTY_CPU_RUNQ);
+
+ for (i = 0; i < erts_no_dirty_io_schedulers; i++) {
+ ERTS_SYS_TRY_CATCH(
+ erts_print_scheduler_info(to, to_arg, ERTS_DIRTY_IO_SCHEDULER_IX(i)),
+ erts_cbprintf(to, to_arg, "** crashed **\n"));
+ }
+ erts_cbprintf(to, to_arg, "=dirty_io_run_queue\n");
+ erts_print_run_queue_info(to, to_arg, ERTS_DIRTY_IO_RUNQ);
+#endif /* ERTS_DIRTY_SCHEDULERS */
#endif
#ifdef ERTS_SMP
diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c
index ff03151619..d05507118e 100644
--- a/erts/emulator/beam/erl_bif_port.c
+++ b/erts/emulator/beam/erl_bif_port.c
@@ -647,6 +647,27 @@ BIF_RETTYPE port_get_data_1(BIF_ALIST_1)
BIF_RET(res);
}
+Eterm erts_port_data_read(Port* prt)
+{
+ Eterm res;
+ erts_aint_t data;
+
+ data = erts_smp_atomic_read_ddrb(&prt->data);
+ if (data == (erts_aint_t)NULL)
+ return am_undefined; /* Port terminated by racing thread */
+
+ if ((data & 0x3) != 0) {
+ res = (Eterm) (UWord) data;
+ ASSERT(is_immed(res));
+ }
+ else {
+ ErtsPortDataHeap *pdhp = (ErtsPortDataHeap *) data;
+ res = pdhp->data;
+ }
+ return res;
+}
+
+
/*
* Open a port. Most of the work is not done here but rather in
* the file io.c.
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index 6a87136463..154b9b8dac 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -116,6 +116,7 @@ typedef struct {
static Uint setup_rootset(Process*, Eterm*, int, Rootset*);
static void cleanup_rootset(Rootset *rootset);
static Eterm *full_sweep_heaps(Process *p,
+ ErlHeapFragment *live_hf_end,
int hibernate,
Eterm *n_heap, Eterm* n_htop,
char *oh, Uint oh_size,
@@ -142,7 +143,7 @@ static Eterm* sweep_literal_area(Eterm* n_hp, Eterm* n_htop,
static Eterm* sweep_literals_to_old_heap(Eterm* heap_ptr, Eterm* heap_end, Eterm* htop,
char* src, Uint src_size);
static Eterm* collect_live_heap_frags(Process* p, ErlHeapFragment *live_hf_end,
- Eterm* heap, Eterm* htop, Eterm* objv, int nobj);
+ Eterm* htop);
static int adjust_after_fullsweep(Process *p, int need, Eterm *objv, int nobj);
static void shrink_new_heap(Process *p, Uint new_sz, Eterm *objv, int nobj);
static void grow_new_heap(Process *p, Uint new_sz, Eterm* objv, int nobj);
@@ -939,6 +940,7 @@ garbage_collect_hibernate(Process* p, int check_long_gc)
htop = heap;
htop = full_sweep_heaps(p,
+ ERTS_INVALID_HFRAG_PTR,
1,
heap,
htop,
@@ -1503,18 +1505,22 @@ do_minor(Process *p, ErlHeapFragment *live_hf_end,
n_htop = n_heap = (Eterm*) ERTS_HEAP_ALLOC(ERTS_ALC_T_HEAP,
sizeof(Eterm)*new_sz);
+ n = setup_rootset(p, objv, nobj, &rootset);
+ roots = rootset.roots;
+
+ /*
+ * All allocations done. Start defile heap with move markers.
+ * A crash dump due to allocation failure above will see a healthy heap.
+ */
+
if (live_hf_end != ERTS_INVALID_HFRAG_PTR) {
/*
* Move heap frags that we know are completely live
* directly into the new young heap generation.
*/
- n_htop = collect_live_heap_frags(p, live_hf_end, n_heap, n_htop,
- objv, nobj);
+ n_htop = collect_live_heap_frags(p, live_hf_end, n_htop);
}
- n = setup_rootset(p, objv, nobj, &rootset);
- roots = rootset.roots;
-
GENSWEEP_NSTACK(p, old_htop, n_htop);
while (n--) {
Eterm* g_ptr = roots->v;
@@ -1757,16 +1763,8 @@ major_collection(Process* p, ErlHeapFragment *live_hf_end,
n_htop = n_heap = (Eterm *) ERTS_HEAP_ALLOC(ERTS_ALC_T_HEAP,
sizeof(Eterm)*new_sz);
- if (live_hf_end != ERTS_INVALID_HFRAG_PTR) {
- /*
- * Move heap frags that we know are completely live
- * directly into the heap.
- */
- n_htop = collect_live_heap_frags(p, live_hf_end, n_heap, n_htop,
- objv, nobj);
- }
-
- n_htop = full_sweep_heaps(p, 0, n_heap, n_htop, oh, oh_size, objv, nobj);
+ n_htop = full_sweep_heaps(p, live_hf_end, 0, n_heap, n_htop, oh, oh_size,
+ objv, nobj);
/* Move the stack to the end of the heap */
stk_sz = HEAP_END(p) - p->stop;
@@ -1813,6 +1811,7 @@ major_collection(Process* p, ErlHeapFragment *live_hf_end,
static Eterm *
full_sweep_heaps(Process *p,
+ ErlHeapFragment *live_hf_end,
int hibernate,
Eterm *n_heap, Eterm* n_htop,
char *oh, Uint oh_size,
@@ -1829,6 +1828,19 @@ full_sweep_heaps(Process *p,
n = setup_rootset(p, objv, nobj, &rootset);
+ /*
+ * All allocations done. Start defile heap with move markers.
+ * A crash dump due to allocation failure above will see a healthy heap.
+ */
+
+ if (live_hf_end != ERTS_INVALID_HFRAG_PTR) {
+ /*
+ * Move heap frags that we know are completely live
+ * directly into the heap.
+ */
+ n_htop = collect_live_heap_frags(p, live_hf_end, n_htop);
+ }
+
#ifdef HIPE
if (hibernate)
hipe_empty_nstack(p);
@@ -2337,9 +2349,7 @@ move_one_area(Eterm* n_htop, char* src, Uint src_size)
*/
static Eterm*
-collect_live_heap_frags(Process* p, ErlHeapFragment *live_hf_end,
- Eterm* n_hstart, Eterm* n_htop,
- Eterm* objv, int nobj)
+collect_live_heap_frags(Process* p, ErlHeapFragment *live_hf_end, Eterm* n_htop)
{
ErlHeapFragment* qb;
char* frag_begin;
diff --git a/erts/emulator/beam/erl_port.h b/erts/emulator/beam/erl_port.h
index b64de624dd..c30bbbca06 100644
--- a/erts/emulator/beam/erl_port.h
+++ b/erts/emulator/beam/erl_port.h
@@ -187,6 +187,7 @@ void erts_init_port_data(Port *);
void erts_cleanup_port_data(Port *);
Uint erts_port_data_size(Port *);
ErlOffHeap *erts_port_data_offheap(Port *);
+Eterm erts_port_data_read(Port* prt);
#define ERTS_PORT_GET_CONNECTED(PRT) \
((Eterm) erts_atomic_read_nob(&(PRT)->connected))
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 63e9275ac1..9b22f024b0 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -1609,6 +1609,20 @@ erts_proclist_destroy(ErtsProcList *plp)
proclist_destroy(plp);
}
+void
+erts_proclist_dump(fmtfn_t to, void *to_arg, ErtsProcList *plp)
+{
+ ErtsProcList *first = plp;
+
+ while (plp) {
+ erts_print(to, to_arg, "%T", plp->pid);
+ plp = plp->next;
+ if (plp == first)
+ break;
+ }
+ erts_print(to, to_arg, "\n");
+}
+
void *
erts_psd_set_init(Process *p, int ix, void *data)
{
@@ -14259,16 +14273,35 @@ stack_element_dump(fmtfn_t to, void *to_arg, Eterm* sp, int yreg)
return yreg;
}
+static void print_current_process_info(fmtfn_t, void *to_arg, ErtsSchedulerData*);
+
/*
* Print scheduler information
*/
void
-erts_print_scheduler_info(fmtfn_t to, void *to_arg, ErtsSchedulerData *esdp) {
+erts_print_scheduler_info(fmtfn_t to, void *to_arg, ErtsSchedulerData *esdp)
+{
int i;
erts_aint32_t flg;
- Process *p;
- erts_print(to, to_arg, "=scheduler:%u\n", esdp->no);
+ switch (esdp->type) {
+ case ERTS_SCHED_NORMAL:
+ erts_print(to, to_arg, "=scheduler:%u\n", esdp->no);
+ break;
+#ifdef ERTS_DIRTY_SCHEDULERS
+ case ERTS_SCHED_DIRTY_CPU:
+ erts_print(to, to_arg, "=dirty_cpu_scheduler:%u\n",
+ (esdp->dirty_no + erts_no_schedulers));
+ break;
+ case ERTS_SCHED_DIRTY_IO:
+ erts_print(to, to_arg, "=dirty_io_scheduler:%u\n",
+ (esdp->dirty_no + erts_no_schedulers + erts_no_dirty_cpu_schedulers));
+ break;
+#endif
+ default:
+ erts_print(to, to_arg, "=unknown_scheduler_type:%u\n", esdp->type);
+ break;
+ }
#ifdef ERTS_SMP
flg = erts_smp_atomic32_read_dirty(&esdp->ssi->flags);
@@ -14316,10 +14349,24 @@ erts_print_scheduler_info(fmtfn_t to, void *to_arg, ErtsSchedulerData *esdp) {
}
erts_print(to, to_arg, "\n");
- erts_print(to, to_arg, "Current Port: ");
- if (esdp->current_port)
- erts_print(to, to_arg, "%T", esdp->current_port->common.id);
- erts_print(to, to_arg, "\n");
+ if (esdp->type == ERTS_SCHED_NORMAL) {
+ erts_print(to, to_arg, "Current Port: ");
+ if (esdp->current_port)
+ erts_print(to, to_arg, "%T", esdp->current_port->common.id);
+ erts_print(to, to_arg, "\n");
+
+ erts_print_run_queue_info(to, to_arg, esdp->run_queue);
+ }
+
+ /* This *MUST* to be the last information in scheduler block */
+ print_current_process_info(to, to_arg, esdp);
+}
+
+void erts_print_run_queue_info(fmtfn_t to, void *to_arg,
+ ErtsRunQueue *run_queue)
+{
+ erts_aint32_t flg;
+ int i;
for (i = 0; i < ERTS_NO_PROC_PRIO_LEVELS; i++) {
erts_print(to, to_arg, "Run Queue ");
@@ -14341,12 +14388,12 @@ erts_print_scheduler_info(fmtfn_t to, void *to_arg, ErtsSchedulerData *esdp) {
break;
}
erts_print(to, to_arg, "Length: %d\n",
- erts_smp_atomic32_read_dirty(&esdp->run_queue->procs.prio_info[i].len));
+ erts_smp_atomic32_read_dirty(&run_queue->procs.prio_info[i].len));
}
erts_print(to, to_arg, "Run Queue Port Length: %d\n",
- erts_smp_atomic32_read_dirty(&esdp->run_queue->ports.info.len));
+ erts_smp_atomic32_read_dirty(&run_queue->ports.info.len));
- flg = erts_smp_atomic32_read_dirty(&esdp->run_queue->flags);
+ flg = erts_smp_atomic32_read_dirty(&run_queue->flags);
erts_print(to, to_arg, "Run Queue Flags: ");
for (i = 0; i < ERTS_RUNQ_FLG_MAX && flg; i++) {
erts_aint32_t chk = (1 << i);
@@ -14413,9 +14460,15 @@ erts_print_scheduler_info(fmtfn_t to, void *to_arg, ErtsSchedulerData *esdp) {
}
}
erts_print(to, to_arg, "\n");
+}
+
+
+static void print_current_process_info(fmtfn_t to, void *to_arg,
+ ErtsSchedulerData* esdp)
+{
+ Process *p = esdp->current_process;
+ erts_aint32_t flg;
- /* This *MUST* to be the last information in scheduler block */
- p = esdp->current_process;
erts_print(to, to_arg, "Current Process: ");
if (esdp->current_process && !(ERTS_TRACE_FLAGS(p) & F_SENSITIVE)) {
flg = erts_smp_atomic32_read_dirty(&p->state);
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 639818c20c..5cac939771 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -1614,6 +1614,7 @@ Uint64 erts_step_proc_interval(void);
ErtsProcList *erts_proclist_create(Process *);
ErtsProcList *erts_proclist_copy(ErtsProcList *);
void erts_proclist_destroy(ErtsProcList *);
+void erts_proclist_dump(fmtfn_t to, void *to_arg, ErtsProcList*);
ERTS_GLB_INLINE int erts_proclist_same(ErtsProcList *, Process *);
ERTS_GLB_INLINE void erts_proclist_store_first(ErtsProcList **, ErtsProcList *);
@@ -1868,6 +1869,7 @@ void erts_stack_dump(fmtfn_t to, void *to_arg, Process *);
void erts_limited_stack_trace(fmtfn_t to, void *to_arg, Process *);
void erts_program_counter_info(fmtfn_t to, void *to_arg, Process *);
void erts_print_scheduler_info(fmtfn_t to, void *to_arg, ErtsSchedulerData *esdp);
+void erts_print_run_queue_info(fmtfn_t, void *to_arg, ErtsRunQueue*);
void erts_dump_extended_process_state(fmtfn_t to, void *to_arg, erts_aint32_t psflg);
void erts_dump_process_state(fmtfn_t to, void *to_arg, erts_aint32_t psflg);
diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c
index e0b795fbf3..00fe30dfcb 100644
--- a/erts/emulator/beam/erl_process_dump.c
+++ b/erts/emulator/beam/erl_process_dump.c
@@ -78,8 +78,17 @@ erts_deep_process_dump(fmtfn_t to, void *to_arg)
Process *p = erts_pix2proc(i);
if (p && p->i != ENULL) {
erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
- if (!(state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_GC)))
- dump_process_info(to, to_arg, p);
+ if (state & ERTS_PSFLG_EXITING)
+ continue;
+ if (state & ERTS_PSFLG_GC) {
+ ErtsSchedulerData *sdp = erts_get_scheduler_data();
+ if (!sdp || p != sdp->current_process)
+ continue;
+
+ /* We want to dump the garbing process that caused the dump */
+ }
+
+ dump_process_info(to, to_arg, p);
}
}
@@ -135,9 +144,12 @@ dump_process_info(fmtfn_t to, void *to_arg, Process *p)
ErtsMessage* mp;
int yreg = -1;
+ if (ERTS_TRACE_FLAGS(p) & F_SENSITIVE)
+ return;
+
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p);
- if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0 && p->msg.first) {
+ if (p->msg.first) {
erts_print(to, to_arg, "=proc_messages:%T\n", p->common.id);
for (mp = p->msg.first; mp != NULL; mp = mp->next) {
Eterm mesg = ERL_MESSAGE_TERM(mp);
@@ -152,38 +164,34 @@ dump_process_info(fmtfn_t to, void *to_arg, Process *p)
}
}
- if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0) {
- if (p->dictionary) {
- erts_print(to, to_arg, "=proc_dictionary:%T\n", p->common.id);
- erts_deep_dictionary_dump(to, to_arg,
- p->dictionary, dump_element_nl);
- }
+ if (p->dictionary) {
+ erts_print(to, to_arg, "=proc_dictionary:%T\n", p->common.id);
+ erts_deep_dictionary_dump(to, to_arg,
+ p->dictionary, dump_element_nl);
}
- if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0) {
- erts_print(to, to_arg, "=proc_stack:%T\n", p->common.id);
- for (sp = p->stop; sp < STACK_START(p); sp++) {
- yreg = stack_element_dump(to, to_arg, sp, yreg);
- }
+ erts_print(to, to_arg, "=proc_stack:%T\n", p->common.id);
+ for (sp = p->stop; sp < STACK_START(p); sp++) {
+ yreg = stack_element_dump(to, to_arg, sp, yreg);
+ }
- erts_print(to, to_arg, "=proc_heap:%T\n", p->common.id);
- for (sp = p->stop; sp < STACK_START(p); sp++) {
- Eterm term = *sp;
-
- if (!is_catch(term) && !is_CP(term)) {
- heap_dump(to, to_arg, term);
- }
- }
- for (mp = p->msg.first; mp != NULL; mp = mp->next) {
- Eterm mesg = ERL_MESSAGE_TERM(mp);
- if (is_value(mesg))
- heap_dump(to, to_arg, mesg);
- mesg = ERL_MESSAGE_TOKEN(mp);
- heap_dump(to, to_arg, mesg);
- }
- if (p->dictionary) {
- erts_deep_dictionary_dump(to, to_arg, p->dictionary, heap_dump);
- }
+ erts_print(to, to_arg, "=proc_heap:%T\n", p->common.id);
+ for (sp = p->stop; sp < STACK_START(p); sp++) {
+ Eterm term = *sp;
+
+ if (!is_catch(term) && !is_CP(term)) {
+ heap_dump(to, to_arg, term);
+ }
+ }
+ for (mp = p->msg.first; mp != NULL; mp = mp->next) {
+ Eterm mesg = ERL_MESSAGE_TERM(mp);
+ if (is_value(mesg))
+ heap_dump(to, to_arg, mesg);
+ mesg = ERL_MESSAGE_TOKEN(mp);
+ heap_dump(to, to_arg, mesg);
+ }
+ if (p->dictionary) {
+ erts_deep_dictionary_dump(to, to_arg, p->dictionary, heap_dump);
}
}
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index 3a5ddde5f4..13b8125a99 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -5151,6 +5151,93 @@ static void prt_one_lnk(ErtsLink *lnk, void *vprtd)
erts_print(prtd->to, prtd->arg, "%T", lnk->pid);
}
+static void dump_port_state(fmtfn_t to, void *arg, erts_aint32_t state)
+{
+ erts_aint32_t rest;
+ int unknown = 0;
+ char delim = ' ';
+
+ erts_print(to, arg, "State:");
+
+ rest = state;
+ while (rest) {
+ erts_aint32_t chk = (rest ^ (rest-1)) & rest; /* lowest set bit */
+ char* s;
+
+ rest &= ~chk;
+ switch (chk) {
+ case ERTS_PORT_SFLG_CONNECTED: s = "CONNECTED"; break;
+ case ERTS_PORT_SFLG_EXITING: s = "EXITING"; break;
+ case ERTS_PORT_SFLG_DISTRIBUTION: s = "DISTR"; break;
+ case ERTS_PORT_SFLG_BINARY_IO: s = "BINARY_IO"; break;
+ case ERTS_PORT_SFLG_SOFT_EOF: s = "SOFT_EOF"; break;
+ case ERTS_PORT_SFLG_CLOSING: s = "CLOSING"; break;
+ case ERTS_PORT_SFLG_SEND_CLOSED: s = "SEND_CLOSED"; break;
+ case ERTS_PORT_SFLG_LINEBUF_IO: s = "LINEBUF_IO"; break;
+ case ERTS_PORT_SFLG_FREE: s = "FREE"; break;
+ case ERTS_PORT_SFLG_INITIALIZING: s = "INITIALIZING"; break;
+ case ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK: s = "PORT_LOCK"; break;
+ case ERTS_PORT_SFLG_INVALID: s = "INVALID"; break;
+ case ERTS_PORT_SFLG_HALT: s = "HALT"; break;
+#ifdef DEBUG
+ case ERTS_PORT_SFLG_PORT_DEBUG: s = "DEBUG"; break;
+#endif
+ default:
+ unknown = 1;
+ continue;
+ }
+ erts_print(to, arg, "%c%s", delim, s);
+ delim = '|';
+ }
+ if (unknown || !state)
+ erts_print(to, arg, "%c0x%x\n", delim, state);
+ else
+ erts_print(to, arg, "\n");
+}
+
+static void dump_port_task_flags(fmtfn_t to, void *arg, Port* p)
+{
+ erts_aint32_t flags = erts_smp_atomic32_read_nob(&p->sched.flags);
+ erts_aint32_t unknown = 0;
+ char delim = ' ';
+
+ if (!flags)
+ return;
+
+ erts_print(to, arg, "Task Flags:");
+
+ while (flags) {
+ erts_aint32_t chk = (flags ^ (flags-1)) & flags; /* lowest set bit */
+ char* s;
+
+ flags &= ~chk;
+ switch (chk) {
+ case ERTS_PTS_FLG_IN_RUNQ: s = "IN_RUNQ"; break;
+ case ERTS_PTS_FLG_EXEC: s = "EXEC"; break;
+ case ERTS_PTS_FLG_HAVE_TASKS: s = "HAVE_TASKS"; break;
+ case ERTS_PTS_FLG_EXIT: s = "EXIT"; break;
+ case ERTS_PTS_FLG_BUSY_PORT: s = "BUSY_PORT"; break;
+ case ERTS_PTS_FLG_BUSY_PORT_Q: s = "BUSY_Q"; break;
+ case ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q: s = "CHK_UNSET_BUSY_Q"; break;
+ case ERTS_PTS_FLG_HAVE_BUSY_TASKS: s = "BUSY_TASKS"; break;
+ case ERTS_PTS_FLG_HAVE_NS_TASKS: s = "NS_TASKS"; break;
+ case ERTS_PTS_FLG_PARALLELISM: s = "PARALLELISM"; break;
+ case ERTS_PTS_FLG_FORCE_SCHED: s = "FORCE_SCHED"; break;
+ case ERTS_PTS_FLG_EXITING: s = "EXITING"; break;
+ case ERTS_PTS_FLG_EXEC_IMM: s = "EXEC_IMM"; break;
+ default:
+ unknown |= chk;
+ continue;
+ }
+ erts_print(to, arg, "%c%s", delim, s);
+ delim = '|';
+ }
+ if (unknown)
+ erts_print(to, arg, "%cUNKNOWN(0x%x)\n", delim, unknown);
+ else
+ erts_print(to, arg, "\n");
+}
+
void
print_port_info(Port *p, fmtfn_t to, void *arg)
{
@@ -5160,6 +5247,8 @@ print_port_info(Port *p, fmtfn_t to, void *arg)
return;
erts_print(to, arg, "=port:%T\n", p->common.id);
+ dump_port_state(to, arg, state);
+ dump_port_task_flags(to, arg, p);
erts_print(to, arg, "Slot: %d\n", internal_port_index(p->common.id));
if (state & ERTS_PORT_SFLG_CONNECTED) {
erts_print(to, arg, "Connected: %T", ERTS_PORT_GET_CONNECTED(p));
@@ -5182,6 +5271,10 @@ print_port_info(Port *p, fmtfn_t to, void *arg)
erts_doforall_monitors(ERTS_P_MONITORS(p), &prt_one_monitor, &prtd);
erts_print(to, arg, "\n");
}
+ if (p->suspended) {
+ erts_print(to, arg, "Suspended: ");
+ erts_proclist_dump(to, arg, p->suspended);
+ }
if (p->common.u.alive.reg != NULL)
erts_print(to, arg, "Registered as: %T\n", p->common.u.alive.reg->name);
@@ -5199,6 +5292,14 @@ print_port_info(Port *p, fmtfn_t to, void *arg)
} else {
erts_print(to, arg, "Port controls linked-in driver: %s\n",p->name);
}
+ erts_print(to, arg, "Input: %beu\n", p->bytes_in);
+ erts_print(to, arg, "Output: %beu\n", p->bytes_out);
+ erts_print(to, arg, "Queue: %beu\n", erts_ioq_size(&p->ioq));
+ {
+ Eterm port_data = erts_port_data_read(p);
+ if (port_data != am_undefined)
+ erts_print(to, arg, "Port Data: %T\n", port_data);
+ }
}
void
diff --git a/lib/observer/src/cdv_port_cb.erl b/lib/observer/src/cdv_port_cb.erl
index b5cbe8132d..6bb8f07a74 100644
--- a/lib/observer/src/cdv_port_cb.erl
+++ b/lib/observer/src/cdv_port_cb.erl
@@ -34,7 +34,8 @@
-define(COL_CONN, ?COL_ID+1).
-define(COL_NAME, ?COL_CONN+1).
-define(COL_CTRL, ?COL_NAME+1).
--define(COL_SLOT, ?COL_CTRL+1).
+-define(COL_QUEUE, ?COL_CTRL+1).
+-define(COL_SLOT, ?COL_QUEUE+1).
@@ -44,6 +45,7 @@ col_to_elem(?COL_ID) -> #port.id;
col_to_elem(?COL_CONN) -> #port.connected;
col_to_elem(?COL_NAME) -> #port.name;
col_to_elem(?COL_CTRL) -> #port.controls;
+col_to_elem(?COL_QUEUE) -> #port.queue;
col_to_elem(?COL_SLOT) -> #port.slot.
col_spec() ->
@@ -51,6 +53,7 @@ col_spec() ->
{"Connected", ?wxLIST_FORMAT_LEFT, 120},
{"Name", ?wxLIST_FORMAT_LEFT, 150},
{"Controls", ?wxLIST_FORMAT_LEFT, 200},
+ {"Queue", ?wxLIST_FORMAT_RIGHT, 100},
{"Slot", ?wxLIST_FORMAT_RIGHT, 50}].
get_info(_) ->
@@ -96,9 +99,17 @@ format(D) ->
info_fields() ->
[{"Overview",
[{"Name", name},
+ {"State", state},
+ {"Task Flags", task_flags},
{"Connected", {click,connected}},
{"Slot", slot},
- {"Controls", controls}]},
+ {"Controls", controls},
+ {"Input bytes", input},
+ {"Output bytes", output},
+ {"Queue bytes", queue},
+ {"Port data", port_data}]},
{scroll_boxes,
[{"Links",1,{click,links}},
- {"Monitors",1,{click,monitors}}]}].
+ {"Monitors",1,{click,monitors}},
+ {"Suspended",1,{click,suspended}}
+ ]}].
diff --git a/lib/observer/src/cdv_proc_cb.erl b/lib/observer/src/cdv_proc_cb.erl
index f10650bbb7..0ea23dd7cb 100644
--- a/lib/observer/src/cdv_proc_cb.erl
+++ b/lib/observer/src/cdv_proc_cb.erl
@@ -149,6 +149,10 @@ info_fields() ->
{"Old Heap", old_heap},
{"Heap Unused", heap_unused},
{"Old Heap Unused", old_heap_unused},
+ {"Binary vheap", bin_vheap},
+ {"Old Binary vheap", old_bin_vheap},
+ {"Binary vheap unused", bin_vheap_unused},
+ {"Old Binary vheap unused", old_bin_vheap_unused},
{"Number of Heap Fragements", num_heap_frag},
{"Heap Fragment Data",heap_frag_data},
{"New Heap Start", new_heap_start},
diff --git a/lib/observer/src/cdv_sched_cb.erl b/lib/observer/src/cdv_sched_cb.erl
index 192aaf31a7..d2696a276f 100644
--- a/lib/observer/src/cdv_sched_cb.erl
+++ b/lib/observer/src/cdv_sched_cb.erl
@@ -31,7 +31,8 @@
%% Columns
-define(COL_ID, 0).
--define(COL_PROC, ?COL_ID+1).
+-define(COL_TYPE, ?COL_ID+1).
+-define(COL_PROC, ?COL_TYPE+1).
-define(COL_PORT, ?COL_PROC+1).
-define(COL_RQL, ?COL_PORT+1).
-define(COL_PQL, ?COL_RQL+1).
@@ -39,6 +40,7 @@
%% Callbacks for cdv_virtual_list_wx
col_to_elem(id) -> col_to_elem(?COL_ID);
col_to_elem(?COL_ID) -> #sched.name;
+col_to_elem(?COL_TYPE) -> #sched.type;
col_to_elem(?COL_PROC) -> #sched.process;
col_to_elem(?COL_PORT) -> #sched.port;
col_to_elem(?COL_RQL) -> #sched.run_q;
@@ -46,6 +48,7 @@ col_to_elem(?COL_PQL) -> #sched.port_q.
col_spec() ->
[{"Id", ?wxLIST_FORMAT_RIGHT, 50},
+ {"Type", ?wxLIST_FORMAT_CENTER, 100},
{"Current Process", ?wxLIST_FORMAT_CENTER, 130},
{"Current Port", ?wxLIST_FORMAT_CENTER, 130},
{"Run Queue Length", ?wxLIST_FORMAT_RIGHT, 180},
@@ -73,7 +76,8 @@ detail_pages() ->
[{"Scheduler Information", fun init_gen_page/2}].
init_gen_page(Parent, Info0) ->
- Fields = info_fields(),
+ Type = proplists:get_value(type, Info0),
+ Fields = info_fields(Type),
Details = proplists:get_value(details, Info0),
Info = if is_map(Details) -> Info0 ++ maps:to_list(Details);
true -> Info0
@@ -81,15 +85,16 @@ init_gen_page(Parent, Info0) ->
cdv_info_wx:start_link(Parent,{Fields,Info,[]}).
%%% Internal
-info_fields() ->
+info_fields(Type) ->
[{"Scheduler Overview",
[{"Id", id},
+ {"Type", type},
{"Current Process",process},
{"Current Port", port},
{"Sleep Info Flags", sleep_info},
{"Sleep Aux Work", sleep_aux}
]},
- {"Run Queues",
+ {run_queues_header(Type),
[{"Flags", runq_flags},
{"Priority Max Length", runq_max},
{"Priority High Length", runq_high},
@@ -116,3 +121,8 @@ info_fields() ->
{" ", {currp_stack, 11}}
]}
].
+
+run_queues_header(normal) ->
+ "Run Queues";
+run_queues_header(DirtyX) ->
+ "Run Queues (common for all '" ++ atom_to_list(DirtyX) ++ "' schedulers)".
diff --git a/lib/observer/src/crashdump_viewer.erl b/lib/observer/src/crashdump_viewer.erl
index 861b592439..d2a175d52d 100644
--- a/lib/observer/src/crashdump_viewer.erl
+++ b/lib/observer/src/crashdump_viewer.erl
@@ -116,6 +116,10 @@
-define(allocator,allocator).
-define(atoms,atoms).
-define(binary,binary).
+-define(dirty_cpu_scheduler,dirty_cpu_scheduler).
+-define(dirty_cpu_run_queue,dirty_cpu_run_queue).
+-define(dirty_io_scheduler,dirty_io_scheduler).
+-define(dirty_io_run_queue,dirty_io_run_queue).
-define(ende,ende).
-define(erl_crash_dump,erl_crash_dump).
-define(ets,ets).
@@ -1222,6 +1226,18 @@ all_procinfo(Fd,Fun,Proc,WS,LineHead) ->
"OldHeap unused" ->
Bytes = list_to_integer(bytes(Fd))*WS,
get_procinfo(Fd,Fun,Proc#proc{old_heap_unused=Bytes},WS);
+ "BinVHeap" ->
+ Bytes = list_to_integer(bytes(Fd))*WS,
+ get_procinfo(Fd,Fun,Proc#proc{bin_vheap=Bytes},WS);
+ "OldBinVHeap" ->
+ Bytes = list_to_integer(bytes(Fd))*WS,
+ get_procinfo(Fd,Fun,Proc#proc{old_bin_vheap=Bytes},WS);
+ "BinVHeap unused" ->
+ Bytes = list_to_integer(bytes(Fd))*WS,
+ get_procinfo(Fd,Fun,Proc#proc{bin_vheap_unused=Bytes},WS);
+ "OldBinVHeap unused" ->
+ Bytes = list_to_integer(bytes(Fd))*WS,
+ get_procinfo(Fd,Fun,Proc#proc{old_bin_vheap_unused=Bytes},WS);
"New heap start" ->
get_procinfo(Fd,Fun,Proc#proc{new_heap_start=bytes(Fd)},WS);
"New heap top" ->
@@ -1632,6 +1648,10 @@ port_to_tuple("#Port<"++Port) ->
get_portinfo(Fd,Port) ->
case line_head(Fd) of
+ "State" ->
+ get_portinfo(Fd,Port#port{state=bytes(Fd)});
+ "Task Flags" ->
+ get_portinfo(Fd,Port#port{task_flags=bytes(Fd)});
"Slot" ->
%% stored as integer so we can sort on it
get_portinfo(Fd,Port#port{slot=list_to_integer(bytes(Fd))});
@@ -1656,6 +1676,10 @@ get_portinfo(Fd,Port) ->
{Pid,Pid++" ("++Ref++")"}
end || Mon <- Monitors0],
get_portinfo(Fd,Port#port{monitors=Monitors});
+ "Suspended" ->
+ Pids = split_pid_list_no_space(bytes(Fd)),
+ Suspended = [{Pid,Pid} || Pid <- Pids],
+ get_portinfo(Fd,Port#port{suspended=Suspended});
"Port controls linked-in driver" ->
Str = lists:flatten(["Linked in driver: " | string(Fd)]),
get_portinfo(Fd,Port#port{controls=Str});
@@ -1671,6 +1695,15 @@ get_portinfo(Fd,Port) ->
"Port is UNIX fd not opened by emulator" ->
Str = lists:flatten(["UNIX fd not opened by emulator: "| string(Fd)]),
get_portinfo(Fd,Port#port{controls=Str});
+ "Input" ->
+ get_portinfo(Fd,Port#port{input=list_to_integer(bytes(Fd))});
+ "Output" ->
+ get_portinfo(Fd,Port#port{output=list_to_integer(bytes(Fd))});
+ "Queue" ->
+ get_portinfo(Fd,Port#port{queue=list_to_integer(bytes(Fd))});
+ "Port Data" ->
+ get_portinfo(Fd,Port#port{port_data=string(Fd)});
+
"=" ++ _next_tag ->
Port;
Other ->
@@ -2501,73 +2534,142 @@ get_indextableinfo1(Fd,IndexTable) ->
%%-----------------------------------------------------------------
%% Page with scheduler table information
schedulers(File) ->
- case lookup_index(?scheduler) of
- [] ->
- [];
- Schedulers ->
- Fd = open(File),
- R = lists:map(fun({Name,Start}) ->
- get_schedulerinfo(Fd,Name,Start)
- end,
- Schedulers),
- close(Fd),
- R
- end.
+ Fd = open(File),
-get_schedulerinfo(Fd,Name,Start) ->
+ Schds0 = case lookup_index(?scheduler) of
+ [] ->
+ [];
+ Normals ->
+ [{Normals, #sched{type=normal}}]
+ end,
+ Schds1 = case lookup_index(?dirty_cpu_scheduler) of
+ [] ->
+ Schds0;
+ DirtyCpus ->
+ [{DirtyCpus, get_dirty_runqueue(Fd, ?dirty_cpu_run_queue)}
+ | Schds0]
+ end,
+ Schds2 = case lookup_index(?dirty_io_scheduler) of
+ [] ->
+ Schds1;
+ DirtyIos ->
+ [{DirtyIos, get_dirty_runqueue(Fd, ?dirty_io_run_queue)}
+ | Schds1]
+ end,
+
+ R = schedulers1(Fd, Schds2, []),
+ close(Fd),
+ R.
+
+schedulers1(_Fd, [], Acc) ->
+ Acc;
+schedulers1(Fd, [{Scheds,Sched0} | Tail], Acc0) ->
+ Acc1 = lists:foldl(fun({Name,Start}, AccIn) ->
+ [get_schedulerinfo(Fd,Name,Start,Sched0) | AccIn]
+ end,
+ Acc0,
+ Scheds),
+ schedulers1(Fd, Tail, Acc1).
+
+get_schedulerinfo(Fd,Name,Start,Sched0) ->
pos_bof(Fd,Start),
- get_schedulerinfo1(Fd,#sched{name=Name}).
+ get_schedulerinfo1(Fd,Sched0#sched{name=list_to_integer(Name)}).
-get_schedulerinfo1(Fd,Sched=#sched{details=Ds}) ->
+sched_type(?dirty_cpu_run_queue) -> dirty_cpu;
+sched_type(?dirty_io_run_queue) -> dirty_io.
+
+get_schedulerinfo1(Fd, Sched) ->
+ case get_schedulerinfo2(Fd, Sched) of
+ {more, Sched2} ->
+ get_schedulerinfo1(Fd, Sched2);
+ {done, Sched2} ->
+ Sched2
+ end.
+
+get_schedulerinfo2(Fd, Sched=#sched{details=Ds}) ->
case line_head(Fd) of
"Current Process" ->
- get_schedulerinfo1(Fd,Sched#sched{process=bytes(Fd, "None")});
+ {more, Sched#sched{process=bytes(Fd, "None")}};
"Current Port" ->
- get_schedulerinfo1(Fd,Sched#sched{port=bytes(Fd, "None")});
+ {more, Sched#sched{port=bytes(Fd, "None")}};
+
+ "Scheduler Sleep Info Flags" ->
+ {more, Sched#sched{details=Ds#{sleep_info=>bytes(Fd, "None")}}};
+ "Scheduler Sleep Info Aux Work" ->
+ {more, Sched#sched{details=Ds#{sleep_aux=>bytes(Fd, "None")}}};
+
+ "Current Process State" ->
+ {more, Sched#sched{details=Ds#{currp_state=>bytes(Fd)}}};
+ "Current Process Internal State" ->
+ {more, Sched#sched{details=Ds#{currp_int_state=>bytes(Fd)}}};
+ "Current Process Program counter" ->
+ {more, Sched#sched{details=Ds#{currp_prg_cnt=>string(Fd)}}};
+ "Current Process CP" ->
+ {more, Sched#sched{details=Ds#{currp_cp=>string(Fd)}}};
+ "Current Process Limited Stack Trace" ->
+ %% If there shall be last in scheduler information block
+ {done, Sched#sched{details=get_limited_stack(Fd, 0, Ds)}};
+
+ "=" ++ _next_tag ->
+ {done, Sched};
+
+ Other ->
+ case Sched#sched.type of
+ normal ->
+ get_runqueue_info2(Fd, Other, Sched);
+ _ ->
+ unexpected(Fd,Other,"dirty scheduler information"),
+ {done, Sched}
+ end
+ end.
+
+get_dirty_runqueue(Fd, Tag) ->
+ case lookup_index(Tag) of
+ [{_, Start}] ->
+ pos_bof(Fd,Start),
+ get_runqueue_info1(Fd,#sched{type=sched_type(Tag)});
+ [] ->
+ #sched{}
+ end.
+
+get_runqueue_info1(Fd, Sched) ->
+ case get_runqueue_info2(Fd, line_head(Fd), Sched) of
+ {more, Sched2} ->
+ get_runqueue_info1(Fd, Sched2);
+ {done, Sched2} ->
+ Sched2
+ end.
+
+get_runqueue_info2(Fd, LineHead, Sched=#sched{details=Ds}) ->
+ case LineHead of
"Run Queue Max Length" ->
RQMax = list_to_integer(bytes(Fd)),
RQ = RQMax + Sched#sched.run_q,
- get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_max=>RQMax}});
+ {more, Sched#sched{run_q=RQ, details=Ds#{runq_max=>RQMax}}};
"Run Queue High Length" ->
RQHigh = list_to_integer(bytes(Fd)),
RQ = RQHigh + Sched#sched.run_q,
- get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_high=>RQHigh}});
+ {more, Sched#sched{run_q=RQ, details=Ds#{runq_high=>RQHigh}}};
"Run Queue Normal Length" ->
RQNorm = list_to_integer(bytes(Fd)),
RQ = RQNorm + Sched#sched.run_q,
- get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_norm=>RQNorm}});
+ {more, Sched#sched{run_q=RQ, details=Ds#{runq_norm=>RQNorm}}};
"Run Queue Low Length" ->
RQLow = list_to_integer(bytes(Fd)),
RQ = RQLow + Sched#sched.run_q,
- get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_low=>RQLow}});
+ {more, Sched#sched{run_q=RQ, details=Ds#{runq_low=>RQLow}}};
"Run Queue Port Length" ->
RQ = list_to_integer(bytes(Fd)),
- get_schedulerinfo1(Fd,Sched#sched{port_q=RQ});
-
- "Scheduler Sleep Info Flags" ->
- get_schedulerinfo1(Fd,Sched#sched{details=Ds#{sleep_info=>bytes(Fd, "None")}});
- "Scheduler Sleep Info Aux Work" ->
- get_schedulerinfo1(Fd,Sched#sched{details=Ds#{sleep_aux=>bytes(Fd, "None")}});
+ {more, Sched#sched{port_q=RQ}};
"Run Queue Flags" ->
- get_schedulerinfo1(Fd,Sched#sched{details=Ds#{runq_flags=>bytes(Fd, "None")}});
+ {more, Sched#sched{details=Ds#{runq_flags=>bytes(Fd, "None")}}};
- "Current Process State" ->
- get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_state=>bytes(Fd)}});
- "Current Process Internal State" ->
- get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_int_state=>bytes(Fd)}});
- "Current Process Program counter" ->
- get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_prg_cnt=>string(Fd)}});
- "Current Process CP" ->
- get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_cp=>string(Fd)}});
- "Current Process Limited Stack Trace" ->
- %% If there shall be last in scheduler information block
- Sched#sched{details=get_limited_stack(Fd, 0, Ds)};
"=" ++ _next_tag ->
- Sched;
+ {done, Sched};
Other ->
unexpected(Fd,Other,"scheduler information"),
- Sched
+ {done, Sched}
end.
get_limited_stack(Fd, N, Ds) ->
@@ -2998,6 +3100,10 @@ tag_to_atom("allocated_areas") -> ?allocated_areas;
tag_to_atom("allocator") -> ?allocator;
tag_to_atom("atoms") -> ?atoms;
tag_to_atom("binary") -> ?binary;
+tag_to_atom("dirty_cpu_scheduler") -> ?dirty_cpu_scheduler;
+tag_to_atom("dirty_cpu_run_queue") -> ?dirty_cpu_run_queue;
+tag_to_atom("dirty_io_scheduler") -> ?dirty_io_scheduler;
+tag_to_atom("dirty_io_run_queue") -> ?dirty_io_run_queue;
tag_to_atom("end") -> ?ende;
tag_to_atom("erl_crash_dump") -> ?erl_crash_dump;
tag_to_atom("ets") -> ?ets;
diff --git a/lib/observer/src/crashdump_viewer.hrl b/lib/observer/src/crashdump_viewer.hrl
index 6a93a089fd..252e19379d 100644
--- a/lib/observer/src/crashdump_viewer.hrl
+++ b/lib/observer/src/crashdump_viewer.hrl
@@ -80,6 +80,10 @@
old_heap,
heap_unused,
old_heap_unused,
+ bin_vheap,
+ old_bin_vheap,
+ bin_vheap_unused,
+ old_bin_vheap_unused,
new_heap_start,
new_heap_top,
stack_top,
@@ -95,19 +99,27 @@
-record(port,
{id,
+ state,
+ task_flags=0,
slot,
connected,
links,
name,
monitors,
- controls}).
+ suspended,
+ controls,
+ input,
+ output,
+ queue,
+ port_data}).
-record(sched,
{name,
+ type,
process,
port,
run_q=0,
- port_q=0,
+ port_q,
details=#{}
}).
diff --git a/lib/stdlib/test/re_SUITE.erl b/lib/stdlib/test/re_SUITE.erl
index 71f86e32e5..7b82647416 100644
--- a/lib/stdlib/test/re_SUITE.erl
+++ b/lib/stdlib/test/re_SUITE.erl
@@ -894,10 +894,13 @@ match_limit(Config) when is_list(Config) ->
%% Test that we get sub-binaries if subject is a binary and we capture
%% binaries.
sub_binaries(Config) when is_list(Config) ->
- Bin = list_to_binary(lists:seq(1,255)),
- {match,[B,C]}=re:run(Bin,"(a)",[{capture,all,binary}]),
- 255 = binary:referenced_byte_size(B),
- 255 = binary:referenced_byte_size(C),
- {match,[D]}=re:run(Bin,"(a)",[{capture,[1],binary}]),
- 255 = binary:referenced_byte_size(D),
+ %% The GC can auto-convert tiny sub-binaries to heap binaries, so we
+ %% extract large sequences to make the test more stable.
+ Bin = << <<I>> || I <- lists:seq(1, 4096) >>,
+ {match,[B,C]}=re:run(Bin,"a(.+)$",[{capture,all,binary}]),
+ true = byte_size(B) =/= byte_size(C),
+ 4096 = binary:referenced_byte_size(B),
+ 4096 = binary:referenced_byte_size(C),
+ {match,[D]}=re:run(Bin,"a(.+)$",[{capture,[1],binary}]),
+ 4096 = binary:referenced_byte_size(D),
ok.
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 22:06:05 +0000