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-rw-r--r--erts/emulator/beam/erl_message.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_message.h b/erts/emulator/beam/erl_message.h
index 4c2674394e..e5f623a370 100644
--- a/erts/emulator/beam/erl_message.h
+++ b/erts/emulator/beam/erl_message.h
@@ -26,6 +26,12 @@
#include "erl_proc_sig_queue.h"
#undef ERTS_PROC_SIG_QUEUE_TYPE_ONLY
+#ifdef DEBUG
+#define ERTS_MSG_COPY_WORDS_PER_REDUCTION 4
+#else
+#define ERTS_MSG_COPY_WORDS_PER_REDUCTION 64
+#endif
+
struct proc_bin;
struct external_thing_;