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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Subject: Slow redisplay with long lines
Date: Thu, 15 May 2014 16:38:52 -0400	[thread overview]
Message-ID: <jwvwqdmkcd4.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83mwein6w1.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 15 May 2014 23:06:54 +0300")

> Long lines slow down redisplay because it needs to scan the entire
> line to see how tall it will be on display.

Why should it care about the whole line rather than only the part
of it that's displayed?


        Stefan "who presumes there are several other reasons why long
                lines cause severe performance issues"



  reply	other threads:[~2014-05-15 20:38 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-15 14:33 line buffer as Red Black Trees instead of linear Alin Soare
2014-05-15 17:15 ` Alin Soare
2014-05-15 19:17 ` Stefan Monnier
2014-05-15 19:47   ` Alin Soare
2014-05-15 20:06     ` Eli Zaretskii
2014-05-15 20:38       ` Stefan Monnier [this message]
2014-05-15 20:57         ` Slow redisplay with long lines Stephan Mueller
2014-05-16  5:40           ` Eli Zaretskii
2014-05-16 18:08             ` Stephan Mueller
2014-05-16 20:36               ` Eli Zaretskii
2014-05-16  5:39         ` Eli Zaretskii
2014-05-15 23:40       ` line buffer as Red Black Trees instead of linear Alin Soare
2014-05-16  5:41         ` Eli Zaretskii
2014-05-16  7:44           ` Alin Soare
2014-05-16  8:28             ` Eli Zaretskii
2014-05-16  8:53               ` Alin Soare
2014-05-16  9:24                 ` Thien-Thi Nguyen
2014-05-21  8:34                 ` Alin Soare
2014-05-21 15:17                   ` Eli Zaretskii
2014-05-21 16:00                     ` Alin Soare
2014-05-21 17:03                       ` Eli Zaretskii
2014-05-22  9:33                         ` Alin Soare

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