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bug#20961: 24.5; `dired-jump' quite slow under Cygwin Emacs
From: |
Sebastien Vauban |
Subject: |
bug#20961: 24.5; `dired-jump' quite slow under Cygwin Emacs |
Date: |
Fri, 03 Jul 2015 10:25:12 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (windows-nt) |
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Sebastien Vauban <sva-news@mygooglest.com>
>> Date: Thu, 02 Jul 2015 12:27:11 +0200
>>
>> Now that profiling works under Cygwin Emacs (thanks Ken and Eli!), I can
>> report the following when playing a couple of seconds with Dired-jump
>> (which I find much slower on Cygwin Emacs than on Windows Emacs).
>>
>> --8<---------------cut here---------------start------------->8---
>> - ... 6440 59%
>> - find-file 6315 58%
>> - apply 6315 58%
>> - ad-Advice-find-file 6315 58%
>> - let 6315 58%
>> - let 6315 58%
>> - setq 6315 58%
>> - with-no-warnings 6315 58%
>> - funcall 6315 58%
>> - #<compiled 0x4018ad5f> 6315 58%
>> - find-file-noselect 6315 58%
>> - run-hook-with-args-until-success 6315 58%
>> - dired-noselect 6315 58%
>> - dired-internal-noselect 6315 58%
>> - dired-readin 6311 58%
>> - dired-readin-insert 6290 57%
>> - dired-insert-directory 6290 57%
>> - insert-directory 6289 57%
>> - apply 6289 57%
>> - ls-lisp--insert-directory 6289 57%
>> - get-free-disk-space 6288 57%
>> - process-file 6288 57%
>> apply 6288 57%
>
> This seems to point to get-free-disk-space, which on Cygwin invokes
> the 'df' program, whereas the native w32 build calls a function to get
> the same info.
I never had noticed that the "available" space was shown in
Dired... Hard to read, BTW, a figure such as "10232288" (neither comma,
nor abbreviation like 10.2G).
And, in fact, that information could be dropped for my own usage... I'm
simply interested by the contents of the directories.
> You also seem to have Helm active, so perhaps these two factors
> together make 'df' invocation much slower than the w32 API call.
Yes, I do have Helm active, but I don't think it comes here to play --
and, in fact, it's not even reported in that part of the trace.
Best regards,
Seb
--
Sebastien Vauban