From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.devel Subject: Re: The Emacs master is much slower than the emacs-27 branch. 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:260366 Archived-At: > -Og is the recommended setting for the edit/build/debug cycle [1], > because it *improves* debug info accuracy over -O0 *and* also runs > faster, which is a significant bonus. So IMHO it is a good thing to not > regress -Og too much. -O0, on the other hand, shouldn't be a concern. > > 1. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html Apparently I currently can't use -Og when comparing benchmarks of older Emacsen with Emacs 28 ones because the former don't use static inlines. I just wanted to know whether -O0 builds of Emacs 28 are also affected by Paul's change because it's those I use for debugging. Neither -O0 nor -Og builds are useful for normal editing here. martin