From: Eli Zaretskii <eliz@gnu.org>
To: Dmitry Antipov <dmantipov@yandex.ru>
Cc: 15555@debbugs.gnu.org
Subject: bug#15555: Re: bug#15555: 24.3; Bidirectional display very slow with long lines
Date: Wed, 19 Feb 2014 19:43:08 +0200 [thread overview]
Message-ID: <83bny35783.fsf@gnu.org> (raw)
In-Reply-To: <530399B6.1090709@yandex.ru>
> Date: Tue, 18 Feb 2014 21:34:46 +0400
> From: Dmitry Antipov <dmantipov@yandex.ru>
> CC: 15555@debbugs.gnu.org
>
> (gdb) b bidi.c:669 ;;; at xmalloc
> Breakpoint 1 at 0x500890: file ../../trunk/src/bidi.c, line 669.
> (gdb) b bidi.c:756 ;;; at xfree
> Breakpoint 2 at 0x500b55: file ../../trunk/src/bidi.c, line 756.
> (gdb) r -Q /tmp/4000.txt
>
> In 4000.txt, eval (goto-char 2769), then press up arrow ==>
>
> Breakpoint 1, bidi_shelve_cache () at ../../trunk/src/bidi.c:669
> 669 databuf = xmalloc (alloc);
> (gdb) p alloc
> $1 = 292820 ;;; ~290K
That's 290K, not 1.5M. But even 1.5M should take about 100 usec to
move with memcpy. So this is not a catastrophe.
Of course, doing this in a never-ending loop is not nice, but that's
not a slowdown, that's a bug.
next prev parent reply other threads:[~2014-02-19 17:43 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-07 20:05 bug#15555: 24.3; Bidirectional display very slow with long lines Jerome L Quinn
2013-10-08 6:42 ` Eli Zaretskii
2013-10-08 15:39 ` Jerome L Quinn
2013-10-08 18:07 ` Eli Zaretskii
2013-10-09 12:26 ` Stefan Monnier
2013-10-09 16:59 ` Eli Zaretskii
2013-10-09 18:04 ` Jerome L Quinn
2016-01-26 5:13 ` bug#3219: " Andrew Hyatt
2016-01-26 14:41 ` Eli Zaretskii
2014-02-18 12:43 ` bug#15555: " Dmitry Antipov
2014-02-18 14:01 ` Dmitry Antipov
2014-02-18 16:21 ` Eli Zaretskii
2014-02-18 14:04 ` bug#15555: " Stefan Monnier
2014-02-18 14:31 ` Dmitry Antipov
2014-02-18 16:24 ` Eli Zaretskii
2014-02-18 17:34 ` Dmitry Antipov
2014-02-18 17:47 ` Eli Zaretskii
2014-02-19 17:43 ` Eli Zaretskii [this message]
2014-02-20 7:32 ` Dmitry Antipov
2014-02-20 17:45 ` Eli Zaretskii
2014-02-21 5:32 ` Dmitry Antipov
2014-02-18 17:58 ` Eli Zaretskii
2014-02-19 5:48 ` Dmitry Antipov
2014-02-19 17:36 ` Eli Zaretskii
2014-02-20 17:44 ` bug#15555: " Eli Zaretskii
2014-02-18 17:44 ` Eli Zaretskii
2014-02-18 17:42 ` Eli Zaretskii
2014-02-19 10:49 ` bug#15555: " Dmitry Antipov
2014-02-19 17:39 ` Eli Zaretskii
2014-02-20 7:21 ` Dmitry Antipov
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