bug#66288: 29.1; Performance regression using pipe for subprocess

[Eli Zaretskii]

> Cc: 66288@debbugs.gnu.org
> Date: Mon, 02 Oct 2023 08:02:14 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> 
> > Attached find two screen grabs showing 28.2 and 29.1; you'll see the 
> > difference is dramatic.  In both cases the same MIT/GNU Scheme version 
> > was used.  (FYI: I'm the MIT/GNU Scheme maintainer, as well as the 
> > original author of "xscheme.el".)
> 
> Thanks, but I cannot view these files here.

Btw, for the benefit of those who will be able to view these files:
which one belongs to what Emacs version?