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Re: GC special object sizes
- From: Geoff Keating <geoffk at geoffk dot org>
- To: Steven Bosscher <s dot bosscher at student dot tudelft dot nl>
- Cc: gcc at gcc dot gnu dot org
- Date: 29 Apr 2003 11:31:26 -0700
- Subject: Re: GC special object sizes
- References: <1051633938.7385.68.camel@steven>
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>