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bug#32728: bug#32729: Xemacs 23 times as fast as GNU Emacs


From: Eli Zaretskii
Subject: bug#32728: bug#32729: Xemacs 23 times as fast as GNU Emacs
Date: Mon, 14 Oct 2019 13:18:30 +0300

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: layer@franz.com,  32729@debbugs.gnu.org,
>   benjamin.benninghofen@airbus.com,  32728@debbugs.gnu.org
> Date: Mon, 14 Oct 2019 10:54:25 +0200
> 
> So what makes start-process 10x slower than call-process?

The fact that it goes through pselect, and only accepts the process
output when Emacs is idle?

> this obviously requires a more in-depth dive into process.c.

Agreed.





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