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Re: Scrolling xdisp.c. Room for optimisation in syntax.c/CC Mode.
From: |
Stefan Monnier |
Subject: |
Re: Scrolling xdisp.c. Room for optimisation in syntax.c/CC Mode. |
Date: |
Sun, 19 Oct 2014 21:41:51 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) |
> I don't see such a large degradation of performance between 24.3 and
> trunk here.
> no-odd-xdisp.c:
> 22.3: 415 scrolls, total time = 14.469409942626953s.
> 23.4: 415 scrolls, total time = 14.116178750991821s.
> 24.3: 415 scrolls, total time = 45.48526978492737s.
> 24.4-rc1: 415 scrolls, total time = 44.03023886680603s.
> 25.0.50: 415 scrolls, total time = 45.08613348007202s.
> xdisp.c:
> 22.3: 415 scrolls, total time = 14.692334413528442s.
> 23.4: 415 scrolls, total time = 14.051368474960327s.
> 24.3: 415 scrolls, total time = 50.858959674835205s.
> 24.4-rc1: 415 scrolls, total time = 58.63706636428833s.
> 25.0.50: 415 scrolls, total time = 59.3416690826416s.
> Tests were done with emacs -Q -nw in an xterm, 80 columns times
> 80 lines.
Which version of cc-mode was used? The one bundled with the respective
Emacs version or is it always the same version (presumably the
standalone version of CC-mode)?
Stefan
Re: Scrolling xdisp.c. Room for optimisation in syntax.c/CC Mode., martin rudalics, 2014/10/20