doc 77bac2

diff --git a/pod/perl5132delta.pod b/pod/perl5132delta.pod
index 6b43143..db8f204 100644 (file)
--- a/pod/perl5132delta.pod
+++ b/pod/perl5132delta.pod
@@ -125,6 +125,9 @@ generate has them.
 
 =head1 Performance Enhancements
 
+Only allocate entries for @_ on demand - this not only saves memory per
+subroutine defined but should hopefully improve COW behaviour (77bac2).
+
 Multiple small improvements to threads:
 
 =over 4