A set of programs and Emacs packages that share same goal – making Emacs Lisp more efficient.

Lispeed = Lisp + Speed

This repository is not intended for active development.
What you can find here:

• Project overview, as a whole.
• High-level documentation.
• Bundle of sources via submodules[1].
• Utility scripts and other niceties.

[1] You may want to clone all
included repositories by yourself, from their upstreams.

Emacs Lisp is slow.
Even with byte code compilation and all optimizations byte-opt provide,
it is slow.
When code that is executed goes beyond some threshold of
execution time, Emacs will hang for awhile due to it’s
single-threaded nature.

Emacs users can benefit from better optimized Emacs Lisp.
It can reduce the amount and frequency of annoying freezes,
which in turn makes Emacs more responsive.

Lispeed is an attempt to improve builtin optimizer.
n2o.el implements additional
optimization levels after installed.

In order to do better optimizations some issues must be solved:

• Dynamic typing: typ.el library tries to infer arbitrary Emacs Lisp expression type.
• Benchmark data analysis: benchstat.el integrates benchstat, so that it can be used for Emacs Lisp.
• Idioms identification: eldb is a big Emacs Lisp corpus that can be queried.

This repository uses submodules. Use instructions below to fetch submodules.

# (1) With '--recursive' option:
git clone --recursive https://github.com/Quasilyte/emacs-lispeed/

# (2) Without '--recursive' option:
git clone https://github.com/Quasilyte/emacs-lispeed/
cd emacs-lispeed
git submodule update --init --recursive