jemalloc is a general purpose malloc implementation that works to avoid memory fragmentation in multithreaded applications. This buildpack makes it easy to install and use jemalloc on Scalingo and compatible platforms.
scalingo env-set BUILDPACK_URL=https://github.com/Scalingo/multi-buildpack.gitAnd in a .buildpacks file (example with ruby):
https://github.com/Scalingo/jemalloc-buildpack.git
https://github.com/Scalingo/ruby-buildpack.gitContinued development and support of the jemalloc buildpack is sponsored by Dead Man's Snitch.
Ever been surprised that a critical recurring job was silently failing to run? Whether it's backups, cache clearing, sending invoices, or whatever your application depends on, Dead Man's Snitch makes it easy to monitor heroku scheduler tasks or to add cron job monitoring to your other services.
Get started for free today with Dead Man's Snitch on Heroku
Set the JEMALLOC_ENABLED config option to true and jemalloc will be used for all commands run inside of your containers.
scalingo env-set JEMALLOC_ENABLED=trueTo control when jemalloc is configured on a per container basis use
jemalloc.sh <cmd> and ensure that JEMALLOC_ENABLED is unset.
Example Procfile:
web: jemalloc.sh bundle exec puma -C config/puma.rbSet this to true to automatically enable jemalloc.
scalingo env-set JEMALLOC_ENABLED=trueTo disable jemalloc set the option to false. This will cause the application to restart disabling jemalloc.
scalingo env-set JEMALLOC_ENABLED=falseSet this to select or pin to a specific version of jemalloc. The default is to use the latest stable version if this is not set. You will receive an error mentioning tar if the version does not exist.
Default: 5.3.0
note: This setting is only used during slug compilation. Changing it will require a code change to be deployed in order to take affect.
scalingo env-set JEMALLOC_VERSION=5.2.1| Version | Released |
|---|---|
| 3.6.0 | 2015-04-15 |
| 4.0.4 | 2015-10-24 |
| 4.1.1 | 2016-05-03 |
| 4.2.1 | 2016-06-08 |
| 4.3.1 | 2016-11-07 |
| 4.4.0 | 2016-12-04 |
| 4.5.0 | 2017-02-28 |
| 5.0.1 | 2017-07-01 |
| 5.1.0 | 2018-05-08 |
| 5.2.0 | 2019-04-02 |
| 5.2.1 | 2019-08-05 |
| 5.3.0 | 2022-05-06 |
The complete and most up to date list of supported versions and stacks is available on the releases page.
This uses Docker to build against Scalingo stack-image-like images.
make VERSION=5.3.0Artifacts will be dropped in dist/ based on Scalingo stack and jemalloc version.