Default '--ponymsgstilmute' to '1'

Author: dipinhora

packages/builtin/runtime_options.pony

@@ -82,11 +82,11 @@ struct RuntimeOptions
     current value. This is a floating point value. Defaults to 2.0.
     """
 
-  var ponymsgstilmute: U32 = 10
+  var ponymsgstilmute: U32 = 1
     """
     Number of messages sent to muted/overloaded/under pressure actors before
     a muted sending actor gets unscheduled so it cannot continue to overwhelm
-    muted/overloaded/under pressure actors. Defaults to 10.
+    muted/overloaded/under pressure actors. Defaults to 1.
     """
 
   var ponynoyield: Bool = false

src/libponyrt/options/options.h

@@ -41,7 +41,7 @@
   "                   pressure actors before a muted sending actor gets\n" \
   "                   unscheduled so it cannot continue to overwhelm\n" \
   "                   muted/overloaded/under pressure actors.\n" \
-  "                   Defaults to 10.\n" \
+  "                   Defaults to 1.\n" \
   "  --ponynoyield    Do not yield the CPU when no work is available.\n" \
   "  --ponynoblock    Do not send block messages to the cycle detector.\n" \
   "  --ponypin        Pin scheduler threads to CPU cores. The ASIO thread\n" \

src/libponyrt/sched/start.c

@@ -238,7 +238,7 @@ PONY_API int pony_init(int argc, char** argv)
   opt.gc_initial = 14;
   opt.gc_factor = 2.0f;
   opt.pin = false;
-  opt.msgs_til_mute = 10;
+  opt.msgs_til_mute = 1;
 
 #if defined(USE_SYSTEMATIC_TESTING)
   opt.systematic_testing_seed = 0;

test/libponyc-run/backpressure/main.pony

@@ -63,6 +63,3 @@ class UnderPressureWaker is TimerNotify
 actor Main
   new create(env: Env) =>
     Incrementer(env)
-
-  fun @runtime_override_defaults(rto: RuntimeOptions) =>
-    rto.ponymsgstilmute = 1