RailsMallocTrim

Drop-in library for RAILS app to save some memory.

Gem will call malloc_trim after every GC run. This gem solves the problem with the minimum possible effort. It will check if malloc_trim is available and then enables trimming along with loading your Rails app

Just put it in your Gemfile:

  gem 'rails_malloc_trim', '~> 0.2'

Done!

• 99th percentile performance is slightly impacted
• CPU is very slightly higher

The gem is available as open source under the terms of the MIT License.

• https://www.joyfulbikeshedding.com/blog/2019-03-14-what-causes-ruby-memory-bloat.html
• https://github.com/tessi/malloc_trim