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Re: master 2c79a8f 2/2: Use posix_spawn if possible.
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From: |
Alan Third |
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Subject: |
Re: master 2c79a8f 2/2: Use posix_spawn if possible. |
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Date: |
Fri, 1 Jan 2021 23:56:15 +0000 |
On Fri, Jan 01, 2021 at 11:38:14PM +0000, Andy Moreton wrote:
> On Thu 31 Dec 2020, Philipp Stephani wrote:
> > The annoying thing about this, though, is that it doesn't work on the
> > BSDs (including macOS). For pty processes on those systems we'll have
> > to continue using fork/vfork for the time being.
> > I think that using posix_spawn on GNU/Linux and for non-pty processes
> > is still a significant win, though.
>
> Can I ask why ? You have not yet explained what benefit this change
> brings, and the length of the discussion shows that there are
> difficulties with it. What is improved by using posix_spawn ?
posix_spawn is supposed to be significantly faster than fork/exec on
macOS and Cygwin.
--
Alan Third