Re: vc-dir operation is very slow on large git repositories in Emacs 26.1

[Alex Harsanyi]

On Tue, Jun 26, 2018 at 12:23 AM Eli Zaretskii <address@hidden> wrote:
>
> > From: Bastian Beischer <address@hidden>

>
> > Looking at commit 58a622d473112f8ff5b4bdb3e49bc6573dfd3404 (where you
> > introduced w32-pipe-buffer-size) I can see a code path that results in
> > resetting the buffer size to 4 KB. Maybe that get's taken?
>
> Only if the GetNamedPipeInfo call fails, which I don't expect to
> happen (and should be easy to verify by running Emacs under a
> debugger, where the debug message in that case should be visible).

Setting w32-pipe-buffer-size to a large value has no effect on the
reading speed even if w32-pipe-read-delay is set to 50 milliseconds.
I mentioned this in one of my previous emails.

Alex.


Alex.