Packages with the jit use flag

Global definition: Enable just-in-time compilation for improved performance. May prevent use of some PaX memory protection features in Gentoo Hardened..

app-arch / zpaq : Journaling incremental deduplicating archiving compressor

app-emulation / aranym : Atari Running on Any Machine, VM running Atari ST/TT/Falcon OS and TOS/GEM apps

  • Build Just-In-Time compiler variant with increased performance

dev-lang / gnat-gpl : GNAT Ada Compiler - GPL version

dev-lang / moarvm : A 6model-based VM for NQP and Rakudo Perl 6

  • Enable Just-In-Time-Compiler. Has no effect except on AMD64 and Darwin.

dev-lang / php : The PHP language runtime engine

  • Enable PCRE JIT support

dev-lang / ruby : An object-oriented scripting language

dev-lang / spidermonkey : SpiderMonkey is Mozilla's JavaScript engine written in C and C++

dev-libs / libpcre : Perl-compatible regular expression library

dev-libs / libpcre2 : Perl-compatible regular expression library

dev-python / pypy : A fast, compliant alternative implementation of the Python language

dev-python / pypy-exe : PyPy executable (build from source)

dev-python / pypy3 : A fast, compliant alternative implementation of the Python (3.7) language

dev-python / pypy3-exe : PyPy3 executable (build from source)

dev-qt / qtdeclarative : The QML and Quick modules for the Qt5 framework

dev-qt / qtscript : Application scripting library for the Qt5 framework (deprecated)

dev-qt / qtwebkit : WebKit rendering library for the Qt5 framework (deprecated)

dev-scheme / guile : GNU Ubiquitous Intelligent Language for Extensions

dev-scheme / racket : General purpose, multi-paradigm Lisp-Scheme programming language

mail-filter / rspamd : Rapid spam filtering system

sys-auth / polkit : Policy framework for controlling privileges for system-wide services

sys-devel / gcc : The GNU Compiler Collection

  • Enable libgccjit so other applications can embed gcc for Just-In-Time compilation. This will slow down the compiler a bit as it forces all of the toolchain to be shared libs.

www-apache / mod_security : Application firewall and intrusion detection for Apache

  • Add support for the PCRE Just-in-Time optimisation, as enabled by dev-libs/libpcre with jit USE flag enabled. Might not be available on hardened systems.

www-servers / varnish : Varnish is a state-of-the-art, high-performance HTTP accelerator