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bug#18558: 24.4.50; Debugger slow with long strings

From: Helmut Eller
Subject: bug#18558: 24.4.50; Debugger slow with long strings
Date: Fri, 19 Feb 2016 10:15:44 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux)

On Fri, Feb 19 2016, Marcin Borkowski wrote:

> I would guess that the problem is not in long string /per se/, but with
> lon lines in the *Backtrace* buffer, i.e. probably something connected
> with the display engine.  I guess this bug should either be closed or
> merged with some other one (one of the other ones, perhaps) dealing with
> efficiency problems with long lines.

It seems very unlikely that the general "long-lines" problem of the
display engine will be fixed.  In contrast, the debugger could be
changed to not generate long lines, e.g. by truncating long string like
it does for long/cyclic lists.


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