PDF | Emacs Lisp (Elisp) is the Lisp dialect used by the Emacs text editor family. Like every major Emacs release, 27.1 packs a lot of new features. The long wait is over!1 Emacs 27.1 was finally released a couple of days ago! The native-compiled benchmarks are run under Emacs compiled and bootstrapped at comp_speed 2 from the same revision of the codebase. This is an issue with DOOM, and maybe specifically with Emacs 28. master branch (Emacs 28.x) feature/native-comp branch (Emacs 28.x) For reference, my machine is: 13-inch MacBook Pro (2020), 10th-gen 2.3 GHz Quad-Core Intel Core i7 (4c/8t) macOS 10.15.6 (19G2021) Xcode 12.0; Limitations. I also recommend checking out emacs-pgtk-native-comp-git, this combines native compilation with a new rendering engine for an even faster Emacs. I want to compile the gccemacs branch of Emacs. With modus-themes (modus-operandi-theme and modus-vivendi-theme on MELPA), setting the modus-vivendi-theme-override-colors-alist and modus-operandi-theme-override-colors-alist has no effect. When I run ./configure, the configure script errors with: cd emacs git checkout feature/native-comp ./autogen.sh ./configure --with-nativecomp configure: error: Installed libgccjit has failed passing the smoke test. I’ve been using Emacs 27 since around late January. The main development continues in the master branch (as 28.0.50) whereas the emacs-27 branch will only receive bugfix commits. I’ve taken the liberty of writing a Dockerfile that demonstrates how to do it with Ubuntu 20.04 . The build produced does have some limitations: It is not a universal application. It’s very likely this feature will make it into Emacs 28, but that is years away. Main reasons are native JSON parsing which speeds up lsp-mode, and the new built-in display-fill-column-indicator-mode to replace the fill-column-indicator package (fci-mode) which I’d been using for years.The new built-in mode performs better and doesn’t conflict with some packages like fci-mode does. As the feature’s not mainlined yet, you’ll have to compile it yourself. vgivanovic commented on 2020-08-24 05:09 No matter what I did, I kept on failing the libgccjit smoke test because I had installed gcc-10.2.0-1 and gcc-libs-10.2.0-1 when libgccjit was only at 10.1.0.-1. I'm using Emacs 28/native-comp on Debian Stable. Emacs 28 from master branch against their native-compiled ver-sions at comp_speed 3. Native compilation of Emacs Lisp on track to be merged into master, maintainers 'would like to see it in Emacs 28' The optimized native-code allows all the benchmarks to run at least two times faster, with most of them reaching much higher They compare the execution time of the benchmarks when byte-compiled and run under the vanilla Emacs 28 from master branch against their native-compiled versions at comp_speed 3. The native-compiled benchmarks are run under Emacs compiled and bootstrapped at comp_speed 2 from the same revision of the codebase. Now there's a separate branch for emacs 27 which is going to be released anytime soon (in emacs terms).