throttle nix daemon on high mem

2026-09-20 14:58:59 +02:00 · 2026-09-20 14:58:59 +02:00 · 5339721b50
commit 5339721b50
parent 349f2a3a71
1 changed files with 7 additions and 0 deletions
--- a/nixosConfigurations/muede-lpt2/default.nix
+++ b/nixosConfigurations/muede-lpt2/default.nix
@ -29,6 +29,13 @@
        "i686-linux"
      ];

+      # Global default (nixosModules/distributed-builds.nix) is MemoryMax=90%,
+      # which isn't tight enough on this machine's 31GiB to avoid OOM.
+      systemd.services.nix-daemon.serviceConfig = {
+        MemoryHigh = "60%";
+        MemoryMax = lib.mkForce "80%";
+      };
+
      services.xserver.xkb = {
        # Configure keymap in X11
        layout = "de";