1 files changed, 12 insertions, 20 deletions

diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index 70c3e7612f..b1d1e1d9b0 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -544,7 +544,7 @@ send_to_port(Process *c_p, Eterm message,
  */
 
 static void 
-profile_send(Eterm profiler, Eterm message) {
+profile_send(Eterm from, Eterm message) {
     Uint sz = 0;
     ErlHeapFragment *bp = NULL;
     Uint *hp = NULL;
@@ -552,6 +552,11 @@ profile_send(Eterm profiler, Eterm message) {
     Process *profile_p = NULL;
     ErlOffHeap *off_heap = NULL;
 
+    Eterm profiler = erts_get_system_profile();
+
+    /* do not profile profiler pid */
+    if (from == profiler) return;
+
     if (is_internal_port(profiler)) {
     	Port *profiler_port = NULL;
 
@@ -2581,7 +2586,6 @@ profile_scheduler(Eterm scheduler_id, Eterm state) {
     Uint Ms, s, us;
 
 #ifndef ERTS_SMP
-    Eterm profiler;
 #define LOCAL_HEAP_SIZE (4 + 7)
     DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
     UseTmpHeapNoproc(LOCAL_HEAP_SIZE);
@@ -2616,8 +2620,7 @@ profile_scheduler(Eterm scheduler_id, Eterm state) {
 		 make_small(active_sched), timestamp); hp += 7;
 
 #ifndef ERTS_SMP
-    profiler = erts_get_system_profile();
-    profile_send(profiler, msg);
+    profile_send(NIL, msg);
     UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
 #undef LOCAL_HEAP_SIZE
 #else
@@ -2632,7 +2635,6 @@ profile_scheduler_q(Eterm scheduler_id, Eterm state, Eterm no_schedulers, Uint M
     Eterm *hp, msg, timestamp;
     
 #ifndef ERTS_SMP	
-    Eterm profiler;
 #define LOCAL_HEAP_SIZE (4 + 7)
     DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
     UseTmpHeapNoproc(LOCAL_HEAP_SIZE);
@@ -2653,8 +2655,7 @@ profile_scheduler_q(Eterm scheduler_id, Eterm state, Eterm no_schedulers, Uint M
     timestamp = TUPLE3(hp, make_small(Ms), make_small(s), make_small(us)); hp += 4;
     msg = TUPLE6(hp, am_profile, am_scheduler, scheduler_id, state, no_schedulers, timestamp); hp += 7;
 #ifndef ERTS_SMP
-    profiler = erts_get_system_profile();
-    profile_send(profiler, msg);
+    profile_send(NIL, msg);
     UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
 #undef LOCAL_HEAP_SIZE
 #else
@@ -2897,7 +2898,6 @@ profile_runnable_port(Port *p, Eterm status) {
     Eterm count = make_small(0);
 
 #ifndef ERTS_SMP
-    Eterm profiler;
 #define LOCAL_HEAP_SIZE (4 + 6)
 
     DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
@@ -2922,12 +2922,11 @@ profile_runnable_port(Port *p, Eterm status) {
     msg = TUPLE5(hp, am_profile, p->id, status, count, timestamp); hp += 6;
 
 #ifndef ERTS_SMP
-    profiler = erts_get_system_profile();
-    profile_send(profiler, msg);
+    profile_send(p->id, msg);
     UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
 #undef LOCAL_HEAP_SIZE
 #else
-    enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, NIL, NIL, msg, bp);
+    enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->id, NIL, msg, bp);
 #endif
     erts_smp_mtx_unlock(&smq_mtx);
 }
@@ -2938,7 +2937,6 @@ profile_runnable_proc(Process *p, Eterm status){
     Uint Ms, s, us;
     Eterm *hp, msg, timestamp;
     Eterm where = am_undefined;
-    Eterm profiler;
 
 #ifndef ERTS_SMP
 #define LOCAL_HEAP_SIZE (4 + 6 + 4)
@@ -2951,12 +2949,6 @@ profile_runnable_proc(Process *p, Eterm status){
     ErlHeapFragment *bp;
     Uint hsz = 4 + 6 + 4;
 #endif
-    profiler = erts_get_system_profile();
-
-    /* Do not profile profiler pid */
-    if (profiler == p->id) {
-	return;
-    }
 	
     if (!p->current) {
         p->current = find_function_from_pc(p->i);
@@ -2983,11 +2975,11 @@ profile_runnable_proc(Process *p, Eterm status){
     timestamp = TUPLE3(hp, make_small(Ms), make_small(s), make_small(us)); hp += 4;
     msg = TUPLE5(hp, am_profile, p->id, status, where, timestamp); hp += 6;
 #ifndef ERTS_SMP
-    profile_send(profiler, msg);
+    profile_send(p->id, msg);
     UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
 #undef LOCAL_HEAP_SIZE
 #else
-    enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, NIL, NIL, msg, bp);
+    enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->id, NIL, msg, bp);
 #endif
     erts_smp_mtx_unlock(&smq_mtx);
 }