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From: David Kastrup <dak@gnu.org>
To: Drew Adams <drew.adams@oracle.com>
Cc: Eli Zaretskii <eliz@gnu.org>,
	Stefan Monnier <monnier@iro.umontreal.ca>,
	bruce.connor.am@gmail.com, emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] master 29c360e: Ensure redisplay after "C-x C-e"
Date: Sun, 08 Nov 2015 17:07:40 +0100	[thread overview]
Message-ID: <87bnb4h3ub.fsf@fencepost.gnu.org> (raw)
In-Reply-To: <a1ecdbba-41b2-406d-8334-e80e1f6e9777@default> (Drew Adams's message of "Sun, 8 Nov 2015 07:55:48 -0800 (PST)")

Drew Adams <drew.adams@oracle.com> writes:

>> 5% slowdown in overall operation for addressing a redisplay quirk seems
>> like a bad tradeoff.  Redisplay quirks are a dime a dozen, after all.
>
>   5% performance hit each
>                X  1 dozen
>   -----------------------
>   60% performance hit per dozen

It's more like a dime will buy you 100*(1.05^12 - 1)%, close to 80%.

Just for an automatic mode-line update.  And it's not like the mode line
is not _documented_ to require a manual kick after changes.

-- 
David Kastrup



  reply	other threads:[~2015-11-08 16:07 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20151106093011.17282.48378@vcs.savannah.gnu.org>
     [not found] ` <E1ZudLX-0004XR-KP@vcs.savannah.gnu.org>
2015-11-06 14:18   ` [Emacs-diffs] master 29c360e: Ensure redisplay after "C-x C-e" Stefan Monnier
2015-11-06 14:31     ` Eli Zaretskii
2015-11-06 14:53       ` Artur Malabarba
2015-11-06 15:30         ` Eli Zaretskii
2015-11-06 16:11           ` Artur Malabarba
2015-11-06 16:30             ` Eli Zaretskii
2015-11-06 19:25               ` Eli Zaretskii
2015-11-07 23:41                 ` Stefan Monnier
2015-11-08  3:36                   ` Eli Zaretskii
2015-11-08  9:23                     ` David Kastrup
2015-11-08 15:54                       ` Eli Zaretskii
2015-11-08 15:55                       ` Drew Adams
2015-11-08 16:07                         ` David Kastrup [this message]
2015-11-08 22:25                     ` Stefan Monnier
2015-11-09  3:32                       ` Eli Zaretskii
2015-11-06 15:33         ` Stefan Monnier
2015-11-06 15:30       ` Stefan Monnier
2015-11-06 15:47         ` Eli Zaretskii
2015-11-06 15:54           ` Eli Zaretskii
2015-11-06 21:47           ` Stefan Monnier
2015-11-07  9:07             ` Eli Zaretskii

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