GNU bug report logs - #78465
[PATCH] * src/lread.c (load): Try reuse the fd if it was opened in binary mode

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Lin Sun <sunlin7 <at> hotmail.com>
To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org>
Subject: [PATCH] * src/lread.c (load): Try reuse the fd if it was opened in
 binary mode
Date: Sat, 17 May 2025 07:09:06 +0000

[Message part 1 (text/plain, inline)]

This patch will let Emacs avoid always close the fd then open the file with desired fmode in the "Fload" function on windows. It will reduce the counts on calling the "CreateFile" api.

On my dev windows environment, Emacs startup time reduces from 4.551s to 4.378s with 352 packages. 

[0001-src-lread.c-load-Try-reuse-the-fd-if-it-was-open-on-.patch (text/x-patch, attachment)]

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