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-rw-r--r--erts/doc/src/erl.xml10
-rw-r--r--erts/doc/src/erlang.xml94
-rw-r--r--erts/emulator/beam/atom.names5
-rw-r--r--erts/emulator/beam/bif.c30
-rw-r--r--erts/emulator/beam/erl_bif_info.c37
-rw-r--r--erts/emulator/beam/erl_gc.c195
-rw-r--r--erts/emulator/beam/erl_init.c21
-rw-r--r--erts/emulator/beam/erl_message.c160
-rw-r--r--erts/emulator/beam/erl_message.h2
-rw-r--r--erts/emulator/beam/erl_process.c4
-rw-r--r--erts/emulator/beam/erl_process.h21
-rw-r--r--erts/emulator/test/Makefile2
-rw-r--r--erts/emulator/test/message_queue_data_SUITE.erl (renamed from erts/emulator/test/off_heap_message_queue_SUITE.erl)85
-rw-r--r--erts/etc/common/erlexec.c2
-rw-r--r--erts/preloaded/src/erlang.erl17
15 files changed, 519 insertions, 166 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index c4eb0e16ec..b6fa4c254c 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -1338,14 +1338,14 @@
<item>
<p>Default process flag settings.</p>
<taglist>
- <tag><marker id="+xohmq"><c>+xohmq true|false</c></marker></tag>
+ <tag><marker id="+xmqd"><c>+xmqd off_heap|on_heap|mixed</c></marker></tag>
<item><p>
Sets the default value for the process flag
- <c>off_heap_message_queue</c>. If <c>+xohmq</c> is not
- passed, <c>false</c> will be the default. For more information,
+ <c>message_queue_data</c>. If <c>+xmqd</c> is not
+ passed, <c>mixed</c> will be the default. For more information,
see the documentation of
- <seealso marker="erlang#process_flag_off_heap_message_queue"><c>process_flag(off_heap_message_queue,
- OHMQ)</c></seealso>.
+ <seealso marker="erlang#process_flag_message_queue_data"><c>process_flag(message_queue_data,
+ MQD)</c></seealso>.
</p></item>
</taglist>
</item>
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 2e82bb62a9..6ed03f3dfc 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -59,6 +59,12 @@
</datatype>
<datatype>
+ <name name="message_queue_data"></name>
+ <desc><p>See <seealso marker="#process_flag_message_queue_data"><c>erlang:process_flag(message_queue_data, MQD)</c></seealso>.</p>
+ </desc>
+ </datatype>
+
+ <datatype>
<name name="timestamp"></name>
<desc><p>See <seealso marker="#timestamp/0">erlang:timestamp/0</seealso>.</p>
</desc>
@@ -4280,39 +4286,52 @@ os_prompt% </pre>
<p>Returns the old value of the flag.</p>
</desc>
</func>
- <marker id="process_flag_off_heap_message_queue"/>
+ <marker id="process_flag_message_queue_data"/>
<func>
<name name="process_flag" arity="2" clause_i="5"/>
- <fsummary>Set process flag <c>off_heap_message_queue</c> for the calling process</fsummary>
+ <fsummary>Set process flag <c>message_queue_data</c> for the calling process</fsummary>
+ <type name="message_queue_data"/>
<desc>
<p>This flag determines how messages in the message queue
are stored. When the flag is:</p>
<taglist>
- <tag><c>true</c></tag>
+ <tag><c>off_heap</c></tag>
<item><p>
<em>All</em> messages in the message queue will be stored
outside of the process heap. This implies that <em>no</em>
messages in the message queue will be part of a garbage
collection of the process.
</p></item>
- <tag><c>false</c></tag>
+ <tag><c>on_heap</c></tag>
+ <item><p>
+ All messages in the message queue will eventually be
+ placed on heap. They may however temporarily be stored
+ off heap. This is how messages always have been stored
+ up until ERTS version 8.0.
+ </p></item>
+ <tag><c>mixed</c></tag>
<item><p>
Messages may be placed either on the heap or outside
of the heap.
</p></item>
</taglist>
<p>
+ The default <c>message_queue_data</c> process flag is determined
+ by the <seealso marker="erl#+xmqd"><c>+xmqd</c></seealso>
+ <c>erl</c> command line argument.
+ </p>
+ <p>
If the process potentially may get a hugh amount of messages,
- you are recommended to set the flag to <c>true</c>. This since
- a garbage collection with lots of messages placed on the heap
- may become extremly expensive. Performance of the actual
- message passing is however generally better when setting the
- flag to <c>false</c>.
+ you are recommended to set the flag to <c>off_heap</c>. This
+ since a garbage collection with lots of messages placed on
+ the heap may become extremly expensive and the process may
+ consume large amounts of memory. Performance of the
+ actual message passing is however generally better when not
+ using the <c>off_heap</c> flag.
</p>
<p>
- When changing this flag from <c>false</c> to <c>true</c>,
- all messages in the message queue are moved off heap. This
- work has been initiated but not completed when this function
+ When changing this flag messages will be moved. This work
+ has been initiated but not completed when this function
call returns.
</p>
<p>Returns the old value of the flag.</p>
@@ -4478,6 +4497,7 @@ os_prompt% </pre>
<type name="process_info_result_item"/>
<type name="priority_level"/>
<type name="stack_item"/>
+ <type name="message_queue_data" />
<desc>
<p>Returns a list containing <c><anno>InfoTuple</anno></c>s with
miscellaneous information about the process identified by
@@ -4530,6 +4550,7 @@ os_prompt% </pre>
<type name="process_info_result_item"/>
<type name="stack_item"/>
<type name="priority_level"/>
+ <type name="message_queue_data" />
<desc>
<p>Returns information about the process identified by
<c><anno>Pid</anno></c>, as specified by
@@ -4698,13 +4719,14 @@ os_prompt% </pre>
monitor by name, the list item is
<c>{process, {<anno>RegName</anno>, <anno>Node</anno>}}</c>.</p>
</item>
- <tag><c>{off_heap_message_queue, <anno>OHMQ</anno>}</c></tag>
+ <tag><c>{message_queue_data, <anno>MQD</anno>}</c></tag>
<item>
- <p>Returns the current state of the <c>off_heap_message_queue</c>
- process flag. <c><anno>OHMQ</anno></c> is either <c>true</c>, or
- <c>false</c>. For more information, see the documentation of
- <seealso marker="#process_flag_off_heap_message_queue"><c>process_flag(off_heap_message_queue,
- OHMQ)</c></seealso>.</p>
+ <p>Returns the current state of the <c>message_queue_data</c>
+ process flag. <c><anno>MQD</anno></c> is either <c>off_heap</c>,
+ <c>on_heap</c>, or <c>mixed</c>. For more information, see the
+ documentation of
+ <seealso marker="#process_flag_message_queue_data"><c>process_flag(message_queue_data,
+ MQD)</c></seealso>.</p>
</item>
<tag><c>{priority, <anno>Level</anno>}</c></tag>
<item>
@@ -5474,6 +5496,7 @@ true</pre>
<name name="spawn_opt" arity="2"/>
<fsummary>Creates a new process with a fun as entry point.</fsummary>
<type name="priority_level"/>
+ <type name="message_queue_data" />
<type name="spawn_opt_option" />
<desc>
<p>Returns the process identifier (pid) of a new process
@@ -5490,6 +5513,7 @@ true</pre>
<name name="spawn_opt" arity="3"/>
<fsummary>Creates a new process with a fun as entry point on a given node.</fsummary>
<type name="priority_level"/>
+ <type name="message_queue_data" />
<type name="spawn_opt_option" />
<desc>
<p>Returns the process identifier (pid) of a new process started
@@ -5505,6 +5529,7 @@ true</pre>
<name name="spawn_opt" arity="4"/>
<fsummary>Creates a new process with a function as entry point.</fsummary>
<type name="priority_level"/>
+ <type name="message_queue_data" />
<type name="spawn_opt_option" />
<desc>
<p>Works as
@@ -5607,17 +5632,17 @@ true</pre>
fine-tuning an application and to measure the execution
time with various <c><anno>VSize</anno></c> values.</p>
</item>
- <tag><c>{off_heap_message_queue, <anno>OHMQ</anno>}</c></tag>
+ <tag><c>{message_queue_data, <anno>MQD</anno>}</c></tag>
<item>
- <p>Sets the state of the <c>off_heap_message_queue</c> process
- flag. <c><anno>OHMQ</anno></c> should be either <c>true</c>, or
- <c>false</c>. The default <c>off_heap_message_queue</c> process
- flag is determined by the
- <seealso marker="erl#+xohmq"><c>+xohmq</c></seealso> <c>erl</c>
+ <p>Sets the state of the <c>message_queue_data</c> process
+ flag. <c><anno>MQD</anno></c> should be either <c>off_heap</c>,
+ <c>on_heap</c>, or <c>mixed</c>. The default
+ <c>message_queue_data</c> process flag is determined by the
+ <seealso marker="erl#+xmqd"><c>+xmqd</c></seealso> <c>erl</c>
command line argument. For more information, see the
documentation of
- <seealso marker="#process_flag_off_heap_message_queue"><c>process_flag(off_heap_message_queue,
- <anno>OHMQ</anno>)</c></seealso>.</p>
+ <seealso marker="#process_flag_message_queue_data"><c>process_flag(message_queue_data,
+ <anno>MQD</anno>)</c></seealso>.</p>
</item>
</taglist>
</desc>
@@ -5627,6 +5652,7 @@ true</pre>
<name name="spawn_opt" arity="5"/>
<fsummary>Creates a new process with a function as entry point on a given node.</fsummary>
<type name="priority_level"/>
+ <type name="message_queue_data" />
<type name="spawn_opt_option" />
<desc>
<p>Returns the process identifier (pid) of a new process started
@@ -7106,15 +7132,15 @@ ok
used by the runtime system. It is on the form
"&lt;major ver&gt;.&lt;minor ver&gt;".</p>
</item>
- <tag><marker id="system_info_off_heap_message_queue"><c>off_heap_message_queue</c></marker></tag>
+ <tag><marker id="system_info_message_queue_data"><c>message_queue_data</c></marker></tag>
<item>
- <p>Returns the default value of the <c>off_heap_message_queue</c>
- process flag which is either <c>true</c> or <c>false</c>. This
- default is set by the <c>erl</c> command line argument
- <seealso marker="erl#+xohmq"><c>+xohmq</c></seealso>. For more information on the
- <c>off_heap_message_queue</c> process flag, see documentation of
- <seealso marker="#process_flag_off_heap_message_queue"><c>process_flag(off_heap_message_queue,
- OHMQ)</c></seealso>.</p>
+ <p>Returns the default value of the <c>message_queue_data</c>
+ process flag which is either <c>off_heap</c>, <c>on_heap</c>, or <c>mixed</c>.
+ This default is set by the <c>erl</c> command line argument
+ <seealso marker="erl#+xmqd"><c>+xmqd</c></seealso>. For more information on the
+ <c>message_queue_data</c> process flag, see documentation of
+ <seealso marker="#process_flag_message_queue_data"><c>process_flag(message_queue_data,
+ MQD)</c></seealso>.</p>
</item>
<tag><marker id="system_info_otp_release"><c>otp_release</c></marker></tag>
<item>
diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names
index ea04495574..7424e47ec3 100644
--- a/erts/emulator/beam/atom.names
+++ b/erts/emulator/beam/atom.names
@@ -350,6 +350,7 @@ atom memory_internal
atom memory_types
atom message
atom message_binary
+atom message_queue_data
atom message_queue_len
atom messages
atom merge_trap
@@ -361,6 +362,7 @@ atom min_heap_size
atom min_bin_vheap_size
atom minor_version
atom Minus='-'
+atom mixed
atom module
atom module_info
atom monitored_by
@@ -423,11 +425,12 @@ atom notify
atom notsup
atom nouse_stdio
atom objects
-atom off_heap_message_queue
+atom off_heap
atom offset
atom ok
atom old_heap_block_size
atom old_heap_size
+atom on_heap
atom on_load
atom open
atom open_error
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index f0340540cb..410a6cecac 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -910,13 +910,22 @@ BIF_RETTYPE spawn_opt_1(BIF_ALIST_1)
so.priority = PRIORITY_LOW;
else
goto error;
- } else if (arg == am_off_heap_message_queue) {
- if (val == am_true)
- so.flags |= SPO_OFF_HEAP_MSGQ;
- else if (val == am_false)
+ } else if (arg == am_message_queue_data) {
+ switch (val) {
+ case am_mixed:
+ so.flags &= ~(SPO_OFF_HEAP_MSGQ|SPO_ON_HEAP_MSGQ);
+ break;
+ case am_on_heap:
so.flags &= ~SPO_OFF_HEAP_MSGQ;
- else
+ so.flags |= SPO_ON_HEAP_MSGQ;
+ break;
+ case am_off_heap:
+ so.flags &= ~SPO_ON_HEAP_MSGQ;
+ so.flags |= SPO_OFF_HEAP_MSGQ;
+ break;
+ default:
goto error;
+ }
} else if (arg == am_min_heap_size && is_small(val)) {
Sint min_heap_size = signed_val(val);
if (min_heap_size < 0) {
@@ -1695,15 +1704,10 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2)
}
BIF_RET(old_value);
}
- else if (BIF_ARG_1 == am_off_heap_message_queue) {
- int enable;
- if (BIF_ARG_2 == am_true)
- enable = 1;
- else if (BIF_ARG_2 == am_false)
- enable = 0;
- else
+ else if (BIF_ARG_1 == am_message_queue_data) {
+ old_value = erts_change_message_queue_management(BIF_P, BIF_ARG_2);
+ if (is_non_value(old_value))
goto error;
- old_value = erts_change_off_heap_message_queue_state(BIF_P, enable);
BIF_RET(old_value);
}
else if (BIF_ARG_1 == am_sensitive) {
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 3fe8aed50e..bb75b8abb6 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -589,7 +589,7 @@ static Eterm pi_args[] = {
am_min_bin_vheap_size,
am_current_location,
am_current_stacktrace,
- am_off_heap_message_queue
+ am_message_queue_data
};
#define ERTS_PI_ARGS ((int) (sizeof(pi_args)/sizeof(Eterm)))
@@ -637,7 +637,7 @@ pi_arg2ix(Eterm arg)
case am_min_bin_vheap_size: return 28;
case am_current_location: return 29;
case am_current_stacktrace: return 30;
- case am_off_heap_message_queue: return 31;
+ case am_message_queue_data: return 31;
default: return -1;
}
}
@@ -1496,8 +1496,22 @@ process_info_aux(Process *BIF_P,
break;
}
- case am_off_heap_message_queue:
- res = rp->flags & F_OFF_HEAP_MSGQ ? am_true : am_false;
+ case am_message_queue_data:
+ switch (rp->flags & (F_OFF_HEAP_MSGQ|F_ON_HEAP_MSGQ)) {
+ case F_OFF_HEAP_MSGQ:
+ res = am_off_heap;
+ break;
+ case F_ON_HEAP_MSGQ:
+ res = am_on_heap;
+ break;
+ case 0:
+ res = am_mixed;
+ break;
+ default:
+ res = am_error;
+ ERTS_INTERNAL_ERROR("Inconsistent message queue management state");
+ break;
+ }
hp = HAlloc(BIF_P, 3);
break;
@@ -2662,9 +2676,18 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
BIF_RET(am_true);
}
#endif
- else if (BIF_ARG_1 == am_off_heap_message_queue) {
- BIF_RET(erts_default_spo_flags & SPO_OFF_HEAP_MSGQ
- ? am_true : am_false);
+ else if (BIF_ARG_1 == am_message_queue_data) {
+ switch (erts_default_spo_flags & (SPO_ON_HEAP_MSGQ|SPO_OFF_HEAP_MSGQ)) {
+ case SPO_OFF_HEAP_MSGQ:
+ BIF_RET(am_off_heap);
+ case SPO_ON_HEAP_MSGQ:
+ BIF_RET(am_on_heap);
+ case 0:
+ BIF_RET(am_mixed);
+ default:
+ ERTS_INTERNAL_ERROR("Inconsistent message queue management state");
+ BIF_RET(am_error);
+ }
}
else if (ERTS_IS_ATOM_STR("compile_info",BIF_ARG_1)) {
Uint sz;
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index 3784367195..b63567e563 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -145,6 +145,7 @@ static void offset_rootset(Process *p, Sint offs, char* area, Uint area_size,
Eterm* objv, int nobj);
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 move_msgq_to_heap(Process *p);
static void init_gc_info(ErtsGCInfo *gcip);
@@ -520,6 +521,14 @@ young_gen_usage(Process *p)
Eterm *aheap;
hsz = p->mbuf_sz;
+
+ if (p->flags & F_ON_HEAP_MSGQ) {
+ ErtsMessage *mp;
+ for (mp = p->msg.first; mp; mp = mp->next)
+ if (mp->data.attached)
+ hsz += erts_msg_attached_data_size(mp);
+ }
+
aheap = p->abandoned_heap;
if (!aheap)
hsz += p->htop - p->heap;
@@ -1040,10 +1049,13 @@ minor_collection(Process* p, ErlHeapFragment *live_hf_end,
do_minor(p, live_hf_end, (char *) mature, mature_size*sizeof(Eterm),
new_sz, objv, nobj);
+ if (p->flags & F_ON_HEAP_MSGQ)
+ move_msgq_to_heap(p);
+
new_mature = p->old_htop - prev_old_htop;
size_after = new_mature;
- size_after += HEAP_TOP(p) - HEAP_START(p);
+ size_after += HEAP_TOP(p) - HEAP_START(p) + p->mbuf_sz;
*recl += (size_before - size_after);
ErtsGcQuickSanityCheck(p);
@@ -1461,9 +1473,14 @@ major_collection(Process* p, ErlHeapFragment *live_hf_end,
HIGH_WATER(p) = HEAP_TOP(p);
+ remove_message_buffers(p);
+
+ if (p->flags & F_ON_HEAP_MSGQ)
+ move_msgq_to_heap(p);
+
ErtsGcQuickSanityCheck(p);
- size_after = HEAP_TOP(p) - HEAP_START(p);
+ size_after = HEAP_TOP(p) - HEAP_START(p) + p->mbuf_sz;
*recl += size_before - size_after;
adjusted = adjust_after_fullsweep(p, need, objv, nobj);
@@ -1471,8 +1488,6 @@ major_collection(Process* p, ErlHeapFragment *live_hf_end,
#ifdef HARDDEBUG
disallow_heap_frag_ref_in_heap(p);
#endif
- remove_message_buffers(p);
-
ErtsGcQuickSanityCheck(p);
return gc_cost(size_after, adjusted ? size_after : 0);
@@ -2000,6 +2015,173 @@ collect_live_heap_frags(Process* p, ErlHeapFragment *live_hf_end,
return n_htop;
}
+static ERTS_INLINE void
+copy_one_frag(Eterm** hpp, ErlOffHeap* off_heap,
+ ErlHeapFragment *bp, Eterm *refs, int nrefs)
+{
+ Uint sz;
+ int i;
+ Sint offs;
+ struct erl_off_heap_header* oh;
+ Eterm *fhp, *hp;
+
+ OH_OVERHEAD(off_heap, bp->off_heap.overhead);
+ sz = bp->used_size;
+
+ fhp = bp->mem;
+ hp = *hpp;
+ offs = hp - fhp;
+
+ oh = NULL;
+ while (sz--) {
+ Uint cpy_sz;
+ Eterm val = *fhp++;
+
+ switch (primary_tag(val)) {
+ case TAG_PRIMARY_IMMED1:
+ *hp++ = val;
+ break;
+ case TAG_PRIMARY_LIST:
+ case TAG_PRIMARY_BOXED:
+ *hp++ = offset_ptr(val, offs);
+ break;
+ case TAG_PRIMARY_HEADER:
+ *hp++ = val;
+ switch (val & _HEADER_SUBTAG_MASK) {
+ case ARITYVAL_SUBTAG:
+ break;
+ case REFC_BINARY_SUBTAG:
+ case FUN_SUBTAG:
+ case EXTERNAL_PID_SUBTAG:
+ case EXTERNAL_PORT_SUBTAG:
+ case EXTERNAL_REF_SUBTAG:
+ oh = (struct erl_off_heap_header*) (hp-1);
+ cpy_sz = thing_arityval(val);
+ goto cpy_words;
+ default:
+ cpy_sz = header_arity(val);
+
+ cpy_words:
+ ASSERT(sz >= cpy_sz);
+ sz -= cpy_sz;
+ while (cpy_sz >= 8) {
+ cpy_sz -= 8;
+ *hp++ = *fhp++;
+ *hp++ = *fhp++;
+ *hp++ = *fhp++;
+ *hp++ = *fhp++;
+ *hp++ = *fhp++;
+ *hp++ = *fhp++;
+ *hp++ = *fhp++;
+ *hp++ = *fhp++;
+ }
+ switch (cpy_sz) {
+ case 7: *hp++ = *fhp++;
+ case 6: *hp++ = *fhp++;
+ case 5: *hp++ = *fhp++;
+ case 4: *hp++ = *fhp++;
+ case 3: *hp++ = *fhp++;
+ case 2: *hp++ = *fhp++;
+ case 1: *hp++ = *fhp++;
+ default: break;
+ }
+ if (oh) {
+ /* Add to offheap list */
+ oh->next = off_heap->first;
+ off_heap->first = oh;
+ ASSERT(*hpp <= (Eterm*)oh);
+ ASSERT(hp > (Eterm*)oh);
+ oh = NULL;
+ }
+ break;
+ }
+ break;
+ }
+ }
+
+ ASSERT(bp->used_size == hp - *hpp);
+ *hpp = hp;
+
+ for (i = 0; i < nrefs; i++) {
+ if (is_not_immed(refs[i]))
+ refs[i] = offset_ptr(refs[i], offs);
+ }
+ bp->off_heap.first = NULL;
+}
+
+static void
+move_msgq_to_heap(Process *p)
+{
+ ErtsMessage **mpp = &p->msg.first;
+
+ while (*mpp) {
+ ErtsMessage *mp = *mpp;
+
+ if (mp->data.attached) {
+ ErlHeapFragment *bp;
+ ErtsHeapFactory factory;
+
+ erts_factory_proc_prealloc_init(&factory, p,
+ erts_msg_attached_data_size(mp));
+
+ if (is_non_value(ERL_MESSAGE_TERM(mp))) {
+ if (mp->data.dist_ext) {
+ ASSERT(mp->data.dist_ext->heap_size >= 0);
+ if (is_not_nil(ERL_MESSAGE_TOKEN(mp))) {
+ bp = erts_dist_ext_trailer(mp->data.dist_ext);
+ ERL_MESSAGE_TOKEN(mp) = copy_struct(ERL_MESSAGE_TOKEN(mp),
+ bp->used_size,
+ &factory.hp,
+ factory.off_heap);
+ erts_cleanup_offheap(&bp->off_heap);
+ }
+ ERL_MESSAGE_TERM(mp) = erts_decode_dist_ext(&factory,
+ mp->data.dist_ext);
+ erts_free_dist_ext_copy(mp->data.dist_ext);
+ mp->data.dist_ext = NULL;
+ }
+ }
+ else {
+
+ if (mp->data.attached == ERTS_MSG_COMBINED_HFRAG)
+ bp = &mp->hfrag;
+ else
+ bp = mp->data.heap_frag;
+
+ if (bp->next)
+ erts_move_multi_frags(&factory.hp, factory.off_heap, bp,
+ mp->m, ERL_MESSAGE_REF_ARRAY_SZ, 0);
+ else
+ copy_one_frag(&factory.hp, factory.off_heap, bp,
+ mp->m, ERL_MESSAGE_REF_ARRAY_SZ);
+
+ if (mp->data.attached != ERTS_MSG_COMBINED_HFRAG) {
+ mp->data.heap_frag = NULL;
+ free_message_buffer(bp);
+ }
+ else {
+ ErtsMessage *tmp = erts_alloc_message(0, NULL);
+ sys_memcpy((void *) tmp->m, (void *) mp->m,
+ sizeof(Eterm)*ERL_MESSAGE_REF_ARRAY_SZ);
+ tmp->next = mp->next;
+ if (p->msg.save == &mp->next)
+ p->msg.save = &tmp->next;
+ if (p->msg.last == &mp->next)
+ p->msg.last = &tmp->next;
+ *mpp = tmp;
+ mp->next = NULL;
+ erts_cleanup_messages(mp);
+ mp = tmp;
+ }
+ }
+
+ erts_factory_close(&factory);
+ }
+
+ mpp = &(*mpp)->next;
+ }
+}
+
static Uint
setup_rootset(Process *p, Eterm *objv, int nobj, Rootset *rootset)
{
@@ -2089,9 +2271,8 @@ setup_rootset(Process *p, Eterm *objv, int nobj, Rootset *rootset)
case F_OFF_HEAP_MSGQ_CHNG:
case 0: {
/*
- * Off heap message queue disabled, i.e. we may
- * have references from the message queue to the
- * heap...
+ * We do not have off heap message queue enabled, i.e. we
+ * need to add message queue to rootset...
*/
ErtsMessage *mp;
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index f396a0a156..628915eb23 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -630,7 +630,8 @@ void erts_usage(void)
erts_fprintf(stderr, "-W<i|w|e> set error logger warnings mapping,\n");
erts_fprintf(stderr, " see error_logger documentation for details\n");
- erts_fprintf(stderr, "-xohmq bool set default off_heap_message_queue flag for processes\n");
+ erts_fprintf(stderr, "-xmqd val set default message queue data flag for processes,\n");
+ erts_fprintf(stderr, " valid values are: off_heap | on_heap | mixed\n");
erts_fprintf(stderr, "-zdbbl size set the distribution buffer busy limit in kilobytes\n");
erts_fprintf(stderr, " valid range is [1-%d]\n", INT_MAX/1024);
erts_fprintf(stderr, "-zdntgc time set delayed node table gc in seconds\n");
@@ -2018,15 +2019,21 @@ erl_start(int argc, char **argv)
case 'x': {
char *sub_param = argv[i]+2;
- if (has_prefix("ohmq", sub_param)) {
- arg = get_arg(sub_param+4, argv[i+1], &i);
- if (sys_strcmp(arg, "true") == 0)
- erts_default_spo_flags |= SPO_OFF_HEAP_MSGQ;
- else if (sys_strcmp(arg, "false") == 0)
+ if (has_prefix("mqd", sub_param)) {
+ arg = get_arg(sub_param+3, argv[i+1], &i);
+ if (sys_strcmp(arg, "mixed") == 0)
+ erts_default_spo_flags &= ~(SPO_ON_HEAP_MSGQ|SPO_OFF_HEAP_MSGQ);
+ else if (sys_strcmp(arg, "on_heap") == 0) {
erts_default_spo_flags &= ~SPO_OFF_HEAP_MSGQ;
+ erts_default_spo_flags |= SPO_ON_HEAP_MSGQ;
+ }
+ else if (sys_strcmp(arg, "off_heap") == 0) {
+ erts_default_spo_flags &= ~SPO_ON_HEAP_MSGQ;
+ erts_default_spo_flags |= SPO_OFF_HEAP_MSGQ;
+ }
else {
erts_fprintf(stderr,
- "Invalid off_heap_message_queue flag: %s\n", arg);
+ "Invalid message_queue_data flag: %s\n", arg);
erts_usage();
}
} else {
diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c
index 79739501a8..797212450c 100644
--- a/erts/emulator/beam/erl_message.c
+++ b/erts/emulator/beam/erl_message.c
@@ -629,9 +629,24 @@ erts_try_alloc_message_on_heap(Process *pp,
#endif
else {
in_message_fragment:
-
- mp = erts_alloc_message(sz, hpp);
- *ohpp = sz == 0 ? NULL : &mp->hfrag.off_heap;
+ if (!((*psp) & ERTS_PSFLG_ON_HEAP_MSGQ)) {
+ mp = erts_alloc_message(sz, hpp);
+ *ohpp = sz == 0 ? NULL : &mp->hfrag.off_heap;
+ }
+ else {
+ mp = erts_alloc_message(0, NULL);
+ if (!sz) {
+ *hpp = NULL;
+ *ohpp = NULL;
+ }
+ else {
+ ErlHeapFragment *bp;
+ bp = new_message_buffer(sz);
+ *hpp = &bp->mem[0];
+ mp->data.heap_frag = bp;
+ *ohpp = &bp->off_heap;
+ }
+ }
*on_heap_p = 0;
}
@@ -976,12 +991,12 @@ erts_complete_off_heap_message_queue_change(Process *c_p)
ASSERT(erts_smp_atomic32_read_nob(&c_p->state) & ERTS_PSFLG_OFF_HEAP_MSGQ);
/*
- * This job was first initiated when the process changed
- * "off heap message queue" state from false to true. Since
- * then ERTS_PSFLG_OFF_HEAP_MSGQ has been set. However, the
- * state change might have been changed again (multiple times)
- * since then. Check users last requested state (the flag
- * F_OFF_HEAP_MSGQ), and make the state consistent with that.
+ * This job was first initiated when the process changed to off heap
+ * message queue management. Since then ERTS_PSFLG_OFF_HEAP_MSGQ
+ * has been set. However, the management state might have been changed
+ * again (multiple times) since then. Check users last requested state
+ * (the flags F_OFF_HEAP_MSGQ, and F_ON_HEAP_MSGQ), and make the state
+ * consistent with that.
*/
if (!(c_p->flags & F_OFF_HEAP_MSGQ))
@@ -1022,8 +1037,9 @@ change_off_heap_msgq(void *vcohmq)
}
Eterm
-erts_change_off_heap_message_queue_state(Process *c_p, int enable)
+erts_change_message_queue_management(Process *c_p, Eterm new_state)
{
+ Eterm res;
#ifdef DEBUG
if (c_p->flags & F_OFF_HEAP_MSGQ) {
@@ -1042,57 +1058,117 @@ erts_change_off_heap_message_queue_state(Process *c_p, int enable)
}
#endif
- if (c_p->flags & F_OFF_HEAP_MSGQ) {
- /* Off heap message queue is enabled */
+ switch (c_p->flags & (F_OFF_HEAP_MSGQ|F_ON_HEAP_MSGQ)) {
- if (!enable) {
+ case F_OFF_HEAP_MSGQ:
+ res = am_off_heap;
+
+ switch (new_state) {
+ case am_off_heap:
+ break;
+ case am_on_heap:
+ c_p->flags |= F_ON_HEAP_MSGQ;
+ erts_smp_atomic32_read_bor_nob(&c_p->state,
+ ERTS_PSFLG_ON_HEAP_MSGQ);
+ /* fall through */
+ case am_mixed:
c_p->flags &= ~F_OFF_HEAP_MSGQ;
/*
* We are not allowed to clear ERTS_PSFLG_OFF_HEAP_MSGQ
- * if a change is ongoing. It will be adjusted when the
- * change completes...
+ * if a off heap change is ongoing. It will be adjusted
+ * when the change completes...
*/
if (!(c_p->flags & F_OFF_HEAP_MSGQ_CHNG)) {
/* Safe to clear ERTS_PSFLG_OFF_HEAP_MSGQ... */
erts_smp_atomic32_read_band_nob(&c_p->state,
~ERTS_PSFLG_OFF_HEAP_MSGQ);
}
+ break;
+ default:
+ res = THE_NON_VALUE; /* badarg */
+ break;
}
+ break;
+
+ case F_ON_HEAP_MSGQ:
+ res = am_on_heap;
- return am_true; /* Old state */
+ switch (new_state) {
+ case am_on_heap:
+ break;
+ case am_mixed:
+ c_p->flags &= ~F_ON_HEAP_MSGQ;
+ erts_smp_atomic32_read_band_nob(&c_p->state,
+ ~ERTS_PSFLG_ON_HEAP_MSGQ);
+ break;
+ case am_off_heap:
+ c_p->flags &= ~F_ON_HEAP_MSGQ;
+ erts_smp_atomic32_read_band_nob(&c_p->state,
+ ~ERTS_PSFLG_ON_HEAP_MSGQ);
+ goto change_to_off_heap;
+ default:
+ res = THE_NON_VALUE; /* badarg */
+ break;
+ }
+ break;
+
+ case 0:
+ res = am_mixed;
+
+ switch (new_state) {
+ case am_mixed:
+ break;
+ case am_on_heap:
+ c_p->flags |= F_ON_HEAP_MSGQ;
+ erts_smp_atomic32_read_bor_nob(&c_p->state,
+ ERTS_PSFLG_ON_HEAP_MSGQ);
+ break;
+ case am_off_heap:
+ goto change_to_off_heap;
+ default:
+ res = THE_NON_VALUE; /* badarg */
+ break;
+ }
+ break;
+
+ default:
+ res = am_error;
+ ERTS_INTERNAL_ERROR("Inconsistent message queue management state");
+ break;
}
- /* Off heap message queue is disabled */
+ return res;
+
+change_to_off_heap:
- if (enable) {
- c_p->flags |= F_OFF_HEAP_MSGQ;
+ c_p->flags |= F_OFF_HEAP_MSGQ;
+
+ /*
+ * We do not have to schedule a change if
+ * we have an ongoing off heap change...
+ */
+ if (!(c_p->flags & F_OFF_HEAP_MSGQ_CHNG)) {
+ ErtsChangeOffHeapMessageQueue *cohmq;
/*
- * We do not have to schedule a change if
- * we have an ongoing change...
+ * Need to set ERTS_PSFLG_OFF_HEAP_MSGQ and wait
+ * thread progress before completing the change in
+ * order to ensure that all senders observe that
+ * messages should be passed off heap. When the
+ * change has completed, GC does not need to inspect
+ * the message queue at all.
*/
- if (!(c_p->flags & F_OFF_HEAP_MSGQ_CHNG)) {
- ErtsChangeOffHeapMessageQueue *cohmq;
- /*
- * Need to set ERTS_PSFLG_OFF_HEAP_MSGQ and wait
- * thread progress before completing the change in
- * order to ensure that all senders observe that
- * messages should be passed off heap. When the
- * change has completed, GC does not need to inspect
- * the message queue at all.
- */
- erts_smp_atomic32_read_bor_nob(&c_p->state,
- ERTS_PSFLG_OFF_HEAP_MSGQ);
- c_p->flags |= F_OFF_HEAP_MSGQ_CHNG;
- cohmq = erts_alloc(ERTS_ALC_T_MSGQ_CHNG,
- sizeof(ErtsChangeOffHeapMessageQueue));
- cohmq->pid = c_p->common.id;
- erts_schedule_thr_prgr_later_op(change_off_heap_msgq,
- (void *) cohmq,
- &cohmq->lop);
- }
+ erts_smp_atomic32_read_bor_nob(&c_p->state,
+ ERTS_PSFLG_OFF_HEAP_MSGQ);
+ c_p->flags |= F_OFF_HEAP_MSGQ_CHNG;
+ cohmq = erts_alloc(ERTS_ALC_T_MSGQ_CHNG,
+ sizeof(ErtsChangeOffHeapMessageQueue));
+ cohmq->pid = c_p->common.id;
+ erts_schedule_thr_prgr_later_op(change_off_heap_msgq,
+ (void *) cohmq,
+ &cohmq->lop);
}
- return am_false; /* Old state */
+ return res;
}
int
diff --git a/erts/emulator/beam/erl_message.h b/erts/emulator/beam/erl_message.h
index 740ae46a0f..e241926638 100644
--- a/erts/emulator/beam/erl_message.h
+++ b/erts/emulator/beam/erl_message.h
@@ -277,7 +277,7 @@ void erts_cleanup_offheap(ErlOffHeap *offheap);
void erts_save_message_in_proc(Process *p, ErtsMessage *msg);
Sint erts_move_messages_off_heap(Process *c_p);
Sint erts_complete_off_heap_message_queue_change(Process *c_p);
-Eterm erts_change_off_heap_message_queue_state(Process *c_p, int enable);
+Eterm erts_change_message_queue_management(Process *c_p, Eterm new_state);
int erts_decode_dist_message(Process *, ErtsProcLocks, ErtsMessage *, int);
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index d17355207b..7a31aa3e33 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -10779,6 +10779,10 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
state |= ERTS_PSFLG_OFF_HEAP_MSGQ;
flags |= F_OFF_HEAP_MSGQ;
}
+ else if (so->flags & SPO_ON_HEAP_MSGQ) {
+ state |= ERTS_PSFLG_ON_HEAP_MSGQ;
+ flags |= F_ON_HEAP_MSGQ;
+ }
if (!rq)
rq = erts_get_runq_proc(parent);
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 41b367435d..f0798d8c2d 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -1145,14 +1145,15 @@ void erts_check_for_holes(Process* p);
#define ERTS_PSFLG_PROXY ERTS_PSFLG_BIT(16)
#define ERTS_PSFLG_DELAYED_SYS ERTS_PSFLG_BIT(17)
#define ERTS_PSFLG_OFF_HEAP_MSGQ ERTS_PSFLG_BIT(18)
+#define ERTS_PSFLG_ON_HEAP_MSGQ ERTS_PSFLG_BIT(19)
#ifdef ERTS_DIRTY_SCHEDULERS
-#define ERTS_PSFLG_DIRTY_CPU_PROC ERTS_PSFLG_BIT(19)
-#define ERTS_PSFLG_DIRTY_IO_PROC ERTS_PSFLG_BIT(20)
-#define ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q ERTS_PSFLG_BIT(21)
-#define ERTS_PSFLG_DIRTY_IO_PROC_IN_Q ERTS_PSFLG_BIT(22)
-#define ERTS_PSFLG_MAX (ERTS_PSFLGS_ZERO_BIT_OFFSET + 23)
+#define ERTS_PSFLG_DIRTY_CPU_PROC ERTS_PSFLG_BIT(20)
+#define ERTS_PSFLG_DIRTY_IO_PROC ERTS_PSFLG_BIT(21)
+#define ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q ERTS_PSFLG_BIT(22)
+#define ERTS_PSFLG_DIRTY_IO_PROC_IN_Q ERTS_PSFLG_BIT(23)
+#define ERTS_PSFLG_MAX (ERTS_PSFLGS_ZERO_BIT_OFFSET + 24)
#else
-#define ERTS_PSFLG_MAX (ERTS_PSFLGS_ZERO_BIT_OFFSET + 19)
+#define ERTS_PSFLG_MAX (ERTS_PSFLGS_ZERO_BIT_OFFSET + 20)
#endif
#define ERTS_PSFLGS_IN_PRQ_MASK (ERTS_PSFLG_IN_PRQ_MAX \
@@ -1201,6 +1202,7 @@ void erts_check_for_holes(Process* p);
#define SPO_MONITOR 4
#define SPO_SYSTEM_PROC 8
#define SPO_OFF_HEAP_MSGQ 16
+#define SPO_ON_HEAP_MSGQ 32
extern int erts_default_spo_flags;
@@ -1290,9 +1292,10 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags;
#define F_FORCE_GC (1 << 10) /* Force gc at process in-scheduling */
#define F_DISABLE_GC (1 << 11) /* Disable GC (see below) */
#define F_OFF_HEAP_MSGQ (1 << 12) /* Off heap msg queue */
-#define F_OFF_HEAP_MSGQ_CHNG (1 << 13) /* Off heap msg queue changing */
-#define F_ABANDONED_HEAP_USE (1 << 14) /* Have usage of abandoned heap */
-#define F_DELAY_GC (1 << 15) /* Similar to disable GC (see below) */
+#define F_ON_HEAP_MSGQ (1 << 13) /* Off heap msg queue */
+#define F_OFF_HEAP_MSGQ_CHNG (1 << 14) /* Off heap msg queue changing */
+#define F_ABANDONED_HEAP_USE (1 << 15) /* Have usage of abandoned heap */
+#define F_DELAY_GC (1 << 16) /* Similar to disable GC (see below) */
/*
* F_DISABLE_GC and F_DELAY_GC are similar. Both will prevent
diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile
index 6519fd8982..8cc47937b7 100644
--- a/erts/emulator/test/Makefile
+++ b/erts/emulator/test/Makefile
@@ -79,7 +79,7 @@ MODULES= \
node_container_SUITE \
nofrag_SUITE \
num_bif_SUITE \
- off_heap_message_queue_SUITE \
+ message_queue_data_SUITE \
op_SUITE \
port_SUITE \
port_bif_SUITE \
diff --git a/erts/emulator/test/off_heap_message_queue_SUITE.erl b/erts/emulator/test/message_queue_data_SUITE.erl
index a667704942..11481409aa 100644
--- a/erts/emulator/test/off_heap_message_queue_SUITE.erl
+++ b/erts/emulator/test/message_queue_data_SUITE.erl
@@ -18,7 +18,7 @@
%% %CopyrightEnd%
%%
--module(off_heap_message_queue_SUITE).
+-module(message_queue_data_SUITE).
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,
@@ -68,50 +68,73 @@ end_per_group(_GroupName, Config) ->
basic(Config) when is_list(Config) ->
- basic_test(erlang:system_info(off_heap_message_queue)),
+ basic_test(erlang:system_info(message_queue_data)),
- {ok, Node1} = start_node(Config, "+xohmq true"),
- ok = rpc:call(Node1, ?MODULE, basic_test, [true]),
+ {ok, Node1} = start_node(Config, "+xmqd off_heap"),
+ ok = rpc:call(Node1, ?MODULE, basic_test, [off_heap]),
stop_node(Node1),
- {ok, Node2} = start_node(Config, "+xohmq false"),
- ok = rpc:call(Node2, ?MODULE, basic_test, [false]),
+ {ok, Node2} = start_node(Config, "+xmqd on_heap"),
+ ok = rpc:call(Node2, ?MODULE, basic_test, [on_heap]),
stop_node(Node2),
+
+ {ok, Node3} = start_node(Config, "+xmqd mixed"),
+ ok = rpc:call(Node3, ?MODULE, basic_test, [mixed]),
+ stop_node(Node3),
+
ok.
+is_valid_mqd_value(off_heap) ->
+ true;
+is_valid_mqd_value(on_heap) ->
+ true;
+is_valid_mqd_value(mixed) ->
+ true;
+is_valid_mqd_value(_) ->
+ false.
+
+
basic_test(Default) ->
- Default = erlang:system_info(off_heap_message_queue),
- true = (Default == true) orelse (Default == false),
+ Default = erlang:system_info(message_queue_data),
+ true = is_valid_mqd_value(Default),
- {off_heap_message_queue, Default} = process_info(self(), off_heap_message_queue),
- Default = process_flag(off_heap_message_queue, true),
- {off_heap_message_queue, true} = process_info(self(), off_heap_message_queue),
- true = process_flag(off_heap_message_queue, false),
- {off_heap_message_queue, false} = process_info(self(), off_heap_message_queue),
- false = process_flag(off_heap_message_queue, Default),
- {'EXIT', _} = (catch process_flag(off_heap_message_queue, blupp)),
+ {message_queue_data, Default} = process_info(self(), message_queue_data),
+ Default = process_flag(message_queue_data, off_heap),
+ {message_queue_data, off_heap} = process_info(self(), message_queue_data),
+ off_heap = process_flag(message_queue_data, on_heap),
+ {message_queue_data, on_heap} = process_info(self(), message_queue_data),
+ on_heap = process_flag(message_queue_data, mixed),
+ {message_queue_data, mixed} = process_info(self(), message_queue_data),
+ mixed = process_flag(message_queue_data, Default),
+ {'EXIT', _} = (catch process_flag(message_queue_data, blupp)),
P1 = spawn_opt(fun () -> receive after infinity -> ok end end,
[link]),
- {off_heap_message_queue, Default} = process_info(P1, off_heap_message_queue),
+ {message_queue_data, Default} = process_info(P1, message_queue_data),
unlink(P1),
exit(P1, bye),
P2 = spawn_opt(fun () -> receive after infinity -> ok end end,
- [link, {off_heap_message_queue, false}]),
- {off_heap_message_queue, false} = process_info(P2, off_heap_message_queue),
+ [link, {message_queue_data, off_heap}]),
+ {message_queue_data, off_heap} = process_info(P2, message_queue_data),
unlink(P2),
exit(P2, bye),
P3 = spawn_opt(fun () -> receive after infinity -> ok end end,
- [link, {off_heap_message_queue, true}]),
- {off_heap_message_queue, true} = process_info(P3, off_heap_message_queue),
+ [link, {message_queue_data, on_heap}]),
+ {message_queue_data, on_heap} = process_info(P3, message_queue_data),
unlink(P3),
exit(P3, bye),
+ P4 = spawn_opt(fun () -> receive after infinity -> ok end end,
+ [link, {message_queue_data, mixed}]),
+ {message_queue_data, mixed} = process_info(P4, message_queue_data),
+ unlink(P4),
+ exit(P4, bye),
+
{'EXIT', _} = (catch spawn_opt(fun () -> receive after infinity -> ok end end,
- [link, {off_heap_message_queue, blapp}])),
+ [link, {message_queue_data, blapp}])),
ok.
@@ -119,21 +142,21 @@ process_info_messages(Config) when is_list(Config) ->
Tester = self(),
P1 = spawn_opt(fun () ->
receive after 500 -> ok end,
- false = process_flag(off_heap_message_queue, true),
+ mixed = process_flag(message_queue_data, off_heap),
Tester ! first,
receive after 500 -> ok end,
- true = process_flag(off_heap_message_queue, false),
+ off_heap = process_flag(message_queue_data, on_heap),
Tester ! second,
receive after 500 -> ok end,
- false = process_flag(off_heap_message_queue, true),
+ on_heap = process_flag(message_queue_data, mixed),
Tester ! third,
receive after 500 -> ok end,
- true = process_flag(off_heap_message_queue, false),
+ mixed = process_flag(message_queue_data, off_heap),
Tester ! fourth,
receive after infinity -> ok end
end,
- [link, {off_heap_message_queue, false}]),
+ [link, {message_queue_data, mixed}]),
P1 ! "A",
receive first -> ok end,
@@ -149,16 +172,16 @@ process_info_messages(Config) when is_list(Config) ->
P2 = spawn_opt(fun () ->
receive after 500 -> ok end,
- false = process_flag(off_heap_message_queue, true),
+ mixed = process_flag(message_queue_data, off_heap),
Tester ! first,
receive after 500 -> ok end,
- true = process_flag(off_heap_message_queue, false),
+ off_heap = process_flag(message_queue_data, on_heap),
Tester ! second,
receive after 500 -> ok end,
- false = process_flag(off_heap_message_queue, true),
+ on_heap = process_flag(message_queue_data, mixed),
Tester ! third,
receive after 500 -> ok end,
- true = process_flag(off_heap_message_queue, false),
+ mixed = process_flag(message_queue_data, off_heap),
Tester ! fourth,
receive after 500 -> ok end,
@@ -172,7 +195,7 @@ process_info_messages(Config) when is_list(Config) ->
Tester ! self()
end,
- [link, {off_heap_message_queue, false}]),
+ [link, {message_queue_data, mixed}]),
P2 ! "A",
receive first -> ok end,
diff --git a/erts/etc/common/erlexec.c b/erts/etc/common/erlexec.c
index 461957be10..f1cabe5d0b 100644
--- a/erts/etc/common/erlexec.c
+++ b/erts/etc/common/erlexec.c
@@ -157,7 +157,7 @@ static char *plusr_val_switches[] = {
/* +x arguments with values */
static char *plusx_val_switches[] = {
- "ohmq",
+ "mqd",
NULL
};
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index 6a9ec9c915..7a76c95c53 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -2033,6 +2033,9 @@ open_port(_PortName,_PortSettings) ->
-type priority_level() ::
low | normal | high | max.
+-type message_queue_data() ::
+ off_heap | on_heap | mixed.
+
-spec process_flag(trap_exit, Boolean) -> OldBoolean when
Boolean :: boolean(),
OldBoolean :: boolean();
@@ -2045,9 +2048,9 @@ open_port(_PortName,_PortSettings) ->
(min_bin_vheap_size, MinBinVHeapSize) -> OldMinBinVHeapSize when
MinBinVHeapSize :: non_neg_integer(),
OldMinBinVHeapSize :: non_neg_integer();
- (off_heap_message_queue, OHMQ) -> OldOHMQ when
- OHMQ :: boolean(),
- OldOHMQ :: boolean();
+ (message_queue_data, MQD) -> OldMQD when
+ MQD :: message_queue_data(),
+ OldMQD :: message_queue_data();
(priority, Level) -> OldLevel when
Level :: priority_level(),
OldLevel :: priority_level();
@@ -2086,7 +2089,7 @@ process_flag(_Flag, _Value) ->
min_bin_vheap_size |
monitored_by |
monitors |
- off_heap_message_queue |
+ message_queue_data |
priority |
reductions |
registered_name |
@@ -2128,7 +2131,7 @@ process_flag(_Flag, _Value) ->
{monitors,
Monitors :: [{process, Pid :: pid() |
{RegName :: atom(), Node :: node()}}]} |
- {off_heap_message_queue, OHMQ :: boolean()} |
+ {message_queue_data, MQD :: message_queue_data()} |
{priority, Level :: priority_level()} |
{reductions, Number :: non_neg_integer()} |
{registered_name, Atom :: atom()} |
@@ -2431,7 +2434,7 @@ tuple_to_list(_Tuple) ->
(multi_scheduling) -> disabled | blocked | enabled;
(multi_scheduling_blockers) -> [Pid :: pid()];
(nif_version) -> string();
- (off_heap_message_queue) -> boolean();
+ (message_queue_data) -> message_queue_data();
(otp_release) -> string();
(os_monotonic_time_source) -> [{atom(),term()}];
(os_system_time_source) -> [{atom(),term()}];
@@ -2567,7 +2570,7 @@ spawn_monitor(M, F, A) ->
| {fullsweep_after, Number :: non_neg_integer()}
| {min_heap_size, Size :: non_neg_integer()}
| {min_bin_vheap_size, VSize :: non_neg_integer()}
- | {off_heap_message_queue, OHMQ :: boolean()}.
+ | {message_queue_data, MQD :: message_queue_data()}.
-spec spawn_opt(Fun, Options) -> pid() | {pid(), reference()} when
Fun :: function(),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 02:14:03 +0000