From 97019fee71f269fd705eb473055eb2ff79284378 Mon Sep 17 00:00:00 2001
From: Christoph Cullmann <cullmann@kde.org>
Date: Mon, 3 Jun 2024 22:29:25 +0200
Subject: sync config

some ZFS tuning and more packages for KDE
---
 common.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'common.nix')

diff --git a/common.nix b/common.nix
index 3e88570..fc0f150 100644
--- a/common.nix
+++ b/common.nix
@@ -29,6 +29,17 @@ in
   boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
   boot.supportedFilesystems = [ "zfs" ];
 
+  # don't check for split locks, for KVM and Co.
+  boot.kernelParams = [ "split_lock_detect=off" ];
+
+  # tweak ZFS
+  boot.extraModprobeConfig = ''
+    options zfs zfs_prefetch_disable=1
+    options zfs zfs_arc_max=4294967296
+    options zfs zfs_arc_min=134217728
+    options zfs zfs_arc_meta_limit_percent=75
+  '';
+
   # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
-- 
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