[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#26397: 25.1; call-process slow on macOS and slower on larger frames
From: |
Aaron Jensen |
Subject: |
bug#26397: 25.1; call-process slow on macOS and slower on larger frames |
Date: |
Sat, 8 Apr 2017 08:47:25 -0700 |
On Sat, Apr 8, 2017 at 12:37 AM, YAMAMOTO Mitsuharu
<mituharu@math.s.chiba-u.ac.jp> wrote:
>
> Probably "fork" copies some GUI resources. That would also explain
> why the performance is worse on the Mac port, where each frame
> allocates an extra NSWindow for overlaying.
>
> It becomes much faster and seemingly unaffected by the frame size if
> you comment out "#undef HAVE_WORKING_VFORK" and "#define vfork fork"
> in src/conf_post.h. But I'm not sure if it is safe.
Wow, that does make a big difference. The comment says that Emacs
hangs when evaluating:
(make-comint "test0" "/nodir/nofile" nil "")
But I can not reproduce that currently with vfork. I do not understand
the second comment: "Also, setsid is not allowed in the vfork child's
context as of Darwin 9/Mac OS X 10.5."
How might I test that?
I'm happy to run with a build that has this change for a while and see
how it goes.
Perhaps this is no longer an issue in current macOS? Are there any
version specific pragmas for osx?
- bug#26397: 25.1; call-process slow on macOS and slower on larger frames, Aaron Jensen, 2017/04/08
- bug#26397: 25.1; call-process slow on macOS and slower on larger frames, YAMAMOTO Mitsuharu, 2017/04/08
- bug#26397: 25.1; call-process slow on macOS and slower on larger frames,
Aaron Jensen <=
- bug#26397: 25.1; call-process slow on macOS and slower on larger frames, Alan Third, 2017/04/08
- bug#26397: 25.1; call-process slow on macOS and slower on larger frames, Alan Third, 2017/04/09
- bug#26397: 25.1; call-process slow on macOS and slower on larger frames, Aaron Jensen, 2017/04/09
- bug#26397: [PATCH] Use vfork if possible on Darwin (bug#26397), Alan Third, 2017/04/09
- bug#26397: [PATCH] Use vfork if possible on Darwin (bug#26397), Andreas Schwab, 2017/04/09
- bug#26397: [PATCH] Use vfork if possible on Darwin (bug#26397), Alan Third, 2017/04/09
- bug#26397: [PATCH] Use vfork if possible on Darwin (bug#26397), YAMAMOTO Mitsuharu, 2017/04/09
- bug#26397: [PATCH] Use vfork if possible on Darwin (bug#26397), Aaron Jensen, 2017/04/09
- bug#26397: [PATCH] Use vfork if possible on Darwin (bug#26397), YAMAMOTO Mitsuharu, 2017/04/09
- bug#26397: [PATCH] Use vfork if possible on Darwin (bug#26397), Aaron Jensen, 2017/04/10