From: John Wiegley <jwiegley@gmail.com>
To: emacs-devel@gnu.org
Subject: Re: 'struct window' cleanup #2
Date: Mon, 25 Jun 2012 09:22:02 -0500 [thread overview]
Message-ID: <m2395j5v5h.fsf@gmail.com> (raw)
In-Reply-To: <4FE827B6.6020306@yandex.ru> (Dmitry Antipov's message of "Mon, 25 Jun 2012 12:56:22 +0400")
>>>>> Dmitry Antipov <dmantipov@yandex.ru> writes:
> For a `struct window', changing the type of `last_point', `last_modified'
> and `last_overlay_modified' from Lisp_Object to appropriate integral value
> eliminates a lot of useless Lisp_Object <-> {EMACS_INT, ptrdiff_t}
> conversions in a window and redisplay code; and, of course, lesser
> Lisp_Objects means a bit faster GC. OK to install?
Dmitry, have you measured what speed/memory advantage this change represents?
I understand the theory of why it may be valuable, but what has convinced you
that it's a hotspot?
John
next prev parent reply other threads:[~2012-06-25 14:22 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-25 8:56 'struct window' cleanup #2 Dmitry Antipov
2012-06-25 14:22 ` John Wiegley [this message]
2012-06-25 14:42 ` Dmitry Antipov
2012-06-25 14:27 ` Paul Eggert
2012-06-25 14:53 ` Stefan Monnier
2012-06-25 16:30 ` Dmitry Antipov
2012-06-25 16:35 ` martin rudalics
2012-06-25 16:49 ` Dmitry Antipov
2012-06-26 7:26 ` martin rudalics
2012-06-26 9:06 ` Dmitry Antipov
2012-06-26 15:37 ` Eli Zaretskii
2012-06-26 15:32 ` Eli Zaretskii
2012-06-26 16:49 ` Dmitry Antipov
2012-06-26 17:12 ` Eli Zaretskii
2012-06-27 0:42 ` Stefan Monnier
2012-06-27 3:03 ` Eli Zaretskii
2012-06-27 7:10 ` 'struct window' cleanup #3 Dmitry Antipov
2012-06-27 13:32 ` Stefan Monnier
2012-06-27 17:37 ` Eli Zaretskii
2012-06-27 17:24 ` Eli Zaretskii
2012-06-27 17:59 ` Dmitry Antipov
2012-06-27 19:36 ` Eli Zaretskii
2012-07-01 15:05 ` Dmitry Antipov
2012-07-01 15:42 ` Andreas Schwab
2012-06-28 12:51 ` Dmitry Antipov
2012-06-27 7:06 ` 'struct window' cleanup #2 martin rudalics
2012-06-27 16:59 ` Eli Zaretskii
2012-06-25 16:39 ` Eli Zaretskii
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