From 6389170b3927556ca3f2404b6525f2f57948419d Mon Sep 17 00:00:00 2001
From: talyz <kim.lindberger@gmail.com>
Date: Thu, 8 Apr 2021 19:03:44 +0200
Subject: [PATCH] nixos/gitlab: Set MALLOC_ARENA_MAX to "2"

This should reduce memory fragmentation drastically and is recommended
by both the Puma and the Sidekiq author. It's also the default value
for Ruby deployments on Heroku.
---
 nixos/modules/services/misc/gitlab.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nixos/modules/services/misc/gitlab.nix b/nixos/modules/services/misc/gitlab.nix
index 1240b3e69294..fbd5d0185b03 100644
--- a/nixos/modules/services/misc/gitlab.nix
+++ b/nixos/modules/services/misc/gitlab.nix
@@ -155,6 +155,7 @@ let
     GITLAB_REDIS_CONFIG_FILE = pkgs.writeText "redis.yml" (builtins.toJSON redisConfig);
     prometheus_multiproc_dir = "/run/gitlab";
     RAILS_ENV = "production";
+    MALLOC_ARENA_MAX = "2";
   };
 
   gitlab-rake = pkgs.stdenv.mkDerivation {