diff options
Diffstat (limited to 'pod')
| -rw-r--r-- | pod/perltodo.pod | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/pod/perltodo.pod b/pod/perltodo.pod index efe7fe221b..9421260195 100644 --- a/pod/perltodo.pod +++ b/pod/perltodo.pod @@ -538,6 +538,14 @@ probably aren't allocated/deallocated often enough for a speed saving. Whereas C<MAGIC> is allocated/deallocated more often, but in turn, is also something more externally visible, so changing the rules here may bite external code. +=head2 Shared arenas + +Several SV body structs are now the same size, notably PVMG and PVGV, PVAV and +PVHV, and PVCV and PVFM. It should be possible to allocate and return same +sized bodies from the same actual arena, rather than maintaining one arena for +each. This could save 4-6K per thread, of memory no longer tied up in the +not-yet-allocated part of an arena. + =head1 Tasks that need a knowledge of XS |