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vc-dir operation is very slow on large git repositories in Emacs 26.1
From: |
Alex Harsanyi |
Subject: |
vc-dir operation is very slow on large git repositories in Emacs 26.1 |
Date: |
Wed, 20 Jun 2018 18:50:12 +0800 |
I have a somewhat large git repository at work (51556 files) and
Emacs 26.1 is very slow when updating the *vc-dir* buffer: I
start emacs with the "-Q -no-site-file" and it takes
approximately 2 minutes to update the vc-dir buffer. Emacs 25.2,
on the same machine and repository, will complete this operation
in a few seconds. This is on a Windows machine and I use the
prebuilt binaries downloaded from the gnu.org website for both
versions.
The operation that takes a long time is the ls-files
operation, "git --no-pager ls-files -z -c -s --", but running
that command in a terminal completes in less than a second.
The rest of Emacs is fully responsive and I can continue editing
while the update is running in the *vc-dir* buffer. Also other
version control operations (diff, check-in) are responsive.
I cloned the Emacs git repository (which has 3683 files) and a
vc-dir operation in Emacs 26.1 takes 7 seconds on my machine,
compared to less than 1 second in Emacs 25.2. I noticed this
speed difference on my home computer as well.
I was wondering if others have noticed this issue?
If not, I would appreciate some suggestions on how to further
diagnose the cause of this issue, as it seems it is related to my
computer.
Thanks,
Alex.
- vc-dir operation is very slow on large git repositories in Emacs 26.1,
Alex Harsanyi <=
- Re: vc-dir operation is very slow on large git repositories in Emacs 26.1, Eli Zaretskii, 2018/06/20
- Re: vc-dir operation is very slow on large git repositories in Emacs 26.1, Alex Harsanyi, 2018/06/20
- Re: vc-dir operation is very slow on large git repositories in Emacs 26.1, Eli Zaretskii, 2018/06/21
- Re: vc-dir operation is very slow on large git repositories in Emacs 26.1, Alex Harsanyi, 2018/06/21
- Re: vc-dir operation is very slow on large git repositories in Emacs 26.1, Eli Zaretskii, 2018/06/22
- Re: vc-dir operation is very slow on large git repositories in Emacs 26.1, Alex Harsanyi, 2018/06/22
- Re: vc-dir operation is very slow on large git repositories in Emacs 26.1, Alex Harsanyi, 2018/06/22
- Re: vc-dir operation is very slow on large git repositories in Emacs 26.1, Eli Zaretskii, 2018/06/22
- w32-pipe-read-delay (was: vc-dir operation is very slow on large git repositories in Emacs 26.1), Stefan Monnier, 2018/06/22
- Re: w32-pipe-read-delay (was: vc-dir operation is very slow on large git repositories in Emacs 26.1), Eli Zaretskii, 2018/06/23