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bug#26525: `sit-for' in Flyspell slows typing down, hogs 90% of CPU
From: |
Clément Pit-Claudel |
Subject: |
bug#26525: `sit-for' in Flyspell slows typing down, hogs 90% of CPU |
Date: |
Sat, 15 Apr 2017 16:28:14 -0400 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 |
Hi bug-gnu-emacs,
I have attached a profile in which Flyspell's flyspell-check-word-p consumes
89% of CPU time while typing text in a buffer. This seems to be due to a call
to sit-for in flyspell-check-word-p. What is this sit-for there for?
- flyspell-post-command-hook 6077 89%
- flyspell-check-word-p 6073 89%
- sit-for 6067 89%
- read-event 3826 56%
+ redisplay_internal (C function) 128 1%
+ timer-event-handler 91 1%
+ fstar-subp-filter 3 0%
- redisplay 2205 32%
+ redisplay_internal (C function) 100 1%
+ flyspell-get-not-casechars 2 0%
+ flyspell-check-pre-word-p 4 0%
+ command-execute 220 3%
+ ... 131 1%
+ timer-event-handler 116 1%
+ redisplay_internal (C function) 114 1%
+ company-post-command 102 1%
+ flycheck-perform-deferred-syntax-check 5 0%
+ eldoc-pre-command-refresh-echo-area 3 0%
sml/generate-position-help 1 0%
I haven't spent much time investigating this issue yet, and my current repro
isn't exactly reliable, but I was hoping that someone might be able to provide
insight into Flyspell's behaviour before I dive to deep :) I did verify that
disabling Flyspell fixed the issue.
Thanks!
Clément.
flyspell.prof
Description: Text document
- bug#26525: `sit-for' in Flyspell slows typing down, hogs 90% of CPU,
Clément Pit-Claudel <=