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Re: [PATCH] Reduce GC overhead of the C++ lexer buffer
On 6/19/06, Richard Guenther <email@example.com> wrote:
On Mon, 19 Jun 2006, Steven Bosscher wrote:
> On Monday 19 June 2006 14:05, Richard Guenther wrote:
> > At the moment we have
> > cp/parser.c:292 (cp_lexer_new_main) 0: 0.0% 82369152:33.3% 0: 0.0%
> > 15784576:37.2% 7
> > which is due to the fact that the initial lexer buffer size is no where
> > near a power-of-two value and we keep gc-reallocating the vector, doubling
> > its size.
> > With the following patch, this overhead is removed nearly completely
> > cp/parser.c:266 (cp_lexer_new_main) 0: 0.0%
> > 36: 0.0% 0: 0.0% 4: 0.0% 1
> > Comments?
> I wonder if this will result in significantly larger PCHs... ?
I thought you were making the token buffer much larger.
But you're not. So never mind. :-)