Update Module::Load::Conditional to 0.20

[p5sagit/p5-mst-13.2.git] / pod / perltodo.pod

diff --git a/pod/perltodo.pod b/pod/perltodo.pod
index 1095a72..3df57c5 100644 (file)
--- a/pod/perltodo.pod
+++ b/pod/perltodo.pod
@@ -332,6 +332,12 @@ file/directory copying back and forth.
 These tasks would need a little C knowledge, but don't need any specific
 background or experience with XS, or how the Perl interpreter works
 
+=head2 Modernize the order of directories in @INC
+
+The way @INC is laid out by default, one cannot upgrade core (dual-life)
+modules without overwriting files. This causes problems for binary
+package builders.
+
 =head2 Make it clear from -v if this is the exact official release
 
 Currently perl from C<p4>/C<rsync> ships with a F<patchlevel.h> file that
@@ -380,6 +386,11 @@ custom allocates so it would both use less memory and less CPU to allocate
 the various OP structures from arenas. The SV arena code can probably be
 re-used for this.
 
+Note that Configuring perl with C<-Accflags=-DPL_OP_SLAB_ALLOC> will use
+Perl_Slab_alloc() to pack optrees into a contiguous block, which is
+probably superior to the use of OP arenas, esp. from a cache locality
+standpoint.  See L<Profile Perl - am I hot or not?>.
+
 =head2 Improve win32/wince.c
 
 Currently, numerous functions look virtually, if not completely,