bug#60474: 30.0.50; `write-region-inhibit-fsync' and copy-on-write file systems

[Paul Eggert]

On 2023-01-01 12:07, Eli Zaretskii wrote:

> Paul, any comments?

Sure, Emacs should do the reverse of what it's doing now. That is, Emacs 
should use fsync only in special situations, instead of avoiding it only 
in special situations. In the old days it may have made sense to use 
fsync, but nowadays most platforms don't need fsync for the sorts of 
things people use interactive Emacs.

For what it's worth I've had (setq write-region-inhibit-fsync t) in my 
init file for many years, without problems.

Proposed patch attached.

0001-Improve-interactive-file-saving-performance.patch
Description: Text Data