From 6d4021a6d113cd3a0995b328dc0a36b21663ae81 Mon Sep 17 00:00:00 2001
From: Nathan McCarty <nathan@mccarty.io>
Date: Sun, 4 Jun 2023 21:51:44 -0400
Subject: [PATCH] postgres tuning

---
 machines/pendulum/configuration.nix | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/machines/pendulum/configuration.nix b/machines/pendulum/configuration.nix
index d177f52..1bbefb8 100644
--- a/machines/pendulum/configuration.nix
+++ b/machines/pendulum/configuration.nix
@@ -57,8 +57,16 @@
   };
   # State version
   system.stateVersion = "23.05";
-  # Postgres version
-  services.postgresql.package = pkgs.postgresql_15;
+  # Postgres version and tuning
+  services.postgresql = {
+    package = pkgs.postgresql_15;
+    settings = {
+      shared_buffers = "4GB";
+      effective_cache_size = "8GB";
+      work_mem = "64MB";
+      maintenance_work_mem = "128MB";
+    };
+  };
   # Configure bootloader
   boot.loader.grub.enable = true;
   boot.loader.grub.device = "/dev/sda";