From fb4d71a39fdf0ef2477870c4f720bab10bf90174 Mon Sep 17 00:00:00 2001
From: Izorkin <izorkin@elven.pw>
Date: Fri, 5 Jul 2019 22:15:38 +0300
Subject: [PATCH] nixos/netdata: increase performance

---
 nixos/modules/services/monitoring/netdata.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/nixos/modules/services/monitoring/netdata.nix b/nixos/modules/services/monitoring/netdata.nix
index 978dbd28d85..f9b7550af23 100644
--- a/nixos/modules/services/monitoring/netdata.nix
+++ b/nixos/modules/services/monitoring/netdata.nix
@@ -151,6 +151,8 @@ in {
         # Runtime directory and mode
         RuntimeDirectory = "netdata";
         RuntimeDirectoryMode = "0755";
+        # Performance
+        LimitNOFILE = "30000";
       };
     };
 
@@ -170,6 +172,11 @@ in {
       permissions = "u+rx,g+rx,o-rwx";
     };
 
+    security.pam.loginLimits = [
+      { domain = "netdata"; type = "soft"; item = "nofile"; value = "10000"; }
+      { domain = "netdata"; type = "hard"; item = "nofile"; value = "30000"; }
+    ];
+
     users.users = optional (cfg.user == defaultUser) {
       name = defaultUser;
     };