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From: Eli Zaretskii <eliz@gnu.org>
To: Alan Mackenzie <acm@muc.de>, Yuan Fu <casouri@gmail.com>
Cc: 69071@debbugs.gnu.org
Subject: bug#69071: Emacs master branch: c-ts-mode is slow with large C functions.
Date: Thu, 15 Feb 2024 10:36:11 +0200	[thread overview]
Message-ID: <86le7mw2dg.fsf@gnu.org> (raw)
In-Reply-To: <ZcoBOKy0dMxYKhVK@ACM> (message from Alan Mackenzie on Mon, 12 Feb 2024 11:30:00 +0000)

> Date: Mon, 12 Feb 2024 11:30:00 +0000
> From: Alan Mackenzie <acm@muc.de>
> 
> Using Emacs master:
> 
> c-ts-mode is slow on large C functions when editing towards the end of
> such a function.
> 
> As an extreme example, there is a function proto_register_rrc in the
> file packet-rrc.c which is part of Wireshark.  This file is "available"
> from Github, but sadly no longer freely available - you need to allow
> Microsoft's scripts to run on your machine.  I'm willing to send this
> file by email to anybody who needs it.  It is almost 10 MB in size.
> 
> proto_register_rrc is around 50,000 lines long, total size about 2¼ MB.
> 
> Near the end of the function, after typing a character, there is a delay
> of between 9 and 10 seconds (on my 7 year old machine) before redisplay
> happens.  This is too long.  Some optimisation seems needed.
> 
> On disabling font-lock-mode, the response becomes instantaneous.

Yuan, could you please look into this?





  parent reply	other threads:[~2024-02-15  8:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-12 11:30 bug#69071: Emacs master branch: c-ts-mode is slow with large C functions Alan Mackenzie
2024-02-12 13:14 ` Kévin Le Gouguec
2024-02-15  8:36 ` Eli Zaretskii [this message]
2024-02-16  4:06   ` Yuan Fu
2024-02-20  5:49     ` Yuan Fu
2024-02-20 13:55       ` Eli Zaretskii
2024-02-24 20:35         ` Yuan Fu
2024-02-25  5:48           ` Eli Zaretskii
2024-03-01  1:26             ` Yuan Fu
2024-03-01  7:09               ` Eli Zaretskii

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