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Re: Performance degradation from long lines

From: Ihor Radchenko
Subject: Re: Performance degradation from long lines
Date: Wed, 31 Oct 2018 21:05:07 +0800

Just tried *Backtrace* with emacs -Q from master (did not test on my
config since my config does not work with master).
Works perfectly on `org-element-parse-buffer` with 1.5Mb org buffer,
while I just had to kill my 26.1 emacs on the same task after 3 minutes

Gemini Lasswell <address@hidden> writes:

> Ihor Radchenko <address@hidden> writes:
>> I would like to point out that the long line problem also exists for
>> non-file buffers.
>> Specifically, evaluating debug-on-entry for org-mode buffer parsing
>> functions often leads to ridiculously long lines (pretty much the whole
>> buffer is transformed into a single line), which takes forever to
>> display.
>> find-file-literally does not help with this problem at all.
> Have you tried debugging org-mode with an Emacs built from master?  I've
> made several improvements to the *Backtrace* buffers in master,
> including doing a much better job of abbreviating the printing of very
> large data structures, so that lines don't get so ridiculously long.

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