packages/libs/pcre/Config.in
Christian Lachner 6c40db7e9f pcre: Add JIT-support for select architectures
- This commit adds a config-option for JIT in libpcre(1).

  According to research published on
  https://rust-leipzig.github.io/regex/2017/03/28/comparison-of-regex-engines/
  this should give a 10x performance increase on JIT operations
  which can be desireable for high performance Apache mod_rewrite
  or haproxy reqrep operations.

  This option is available on all officially supported architecutres
  which are listed on https://pcre.org/original/doc/html/pcrejit.html#SEC3.
  Furthermore, it is enabled by default on the following
  architectures: arm, i686, x86_64.

Signed-off-by: Christian Lachner <gladiac@gmail.com>
2019-11-22 09:08:33 +01:00

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config PCRE_JIT_ENABLED
bool
depends on PACKAGE_libpcre && (arm || i386 || i686 || x86_64 || mips || mipsel || powerpc || sparc)
default y if (arm || i686 || x86_64)
prompt "Enable JIT compiler support"
help
Enable JIT (Just-In-Time) compiler support.
Enabling this option can give an about 10x performance increase on JIT operations. It can be desireable for e.g. high performance Apache mod_rewrite or HA-Proxy reqrep operations.
However, JIT should _only_ be enabled on architectures that are supported. Enabling JIT on unsupported platforms will result in a compilation failure. A list of supported architectures can be found here: https://pcre.org/original/doc/html/pcrejit.html#SEC3 .