GC special object sizes

Geoff Keating geoffk@geoffk.org
Tue Apr 29 19:15:00 GMT 2003


Steven Bosscher <s.bosscher@student.tudelft.nl> writes:

> Hi,
> 
> With Zack's work to make TREE_CST_RTL go away, a bunch of objects are
> now only 20 bytes instead of 24, so they go in special page now.  But
> there are many more trees of 24 bytes per tree.  All tree_exp trees with
> two operands, for example, and there are many of those: 65 in tree.def,
> 3 more in c-common.def, and another 11 in cp/cp-tree.def.
> 
> So why isn't there a special page for objects with a size of 24 bytes?

That's a good question.  A good thing to do next would be to try
adding such a page (for trees with two operands) and see whether it
helps or hurts performance.

-- 
- Geoffrey Keating <geoffk@geoffk.org>



More information about the Gcc mailing list