heroku-buildpack-jemalloc

This Heroku buildpack installs jemalloc into a dyno slug.

The current version is built with the heroku-24 stack.

Buildpack goals

• Up-to-date. Always the latest version of jemalloc, built against the newest Heroku stack.
• Zero config. Just add the buildpack and get jemalloc for everything.

If you have other needs, such as...

• turning jemalloc on/off without adding/removing the buildpack,
• using jemalloc for only certain processes,
• building specific versions of jemalloc for specific Heroku stacks,
• using the LD_PRELOAD environment variable for something else

...then you should use one of these instead:

• https://github.com/mojodna/heroku-buildpack-jemalloc. The linked repo is the original source of this project. It requires some configuration, but allows for per-process use of jemalloc and turning jemalloc on/off with environment variables.
• https://github.com/gaffneyc/heroku-buildpack-jemalloc. This repo allows for greater configuration regarding both Heroku stacks and jemalloc versions.

Using

heroku buildpacks:add --index 1 https://github.com/brian-kephart/heroku-buildpack-jemalloc.git
git push heroku master

Building

This uses Docker to build against a Heroku stack image. Make sure you have Docker running before building, then run:

make

Artifacts will be dropped in dist/. See Dockerfiles for build options.