From 2fea36c19eb904125e2db5ba230b28d72dc881db Mon Sep 17 00:00:00 2001
From: Franck Cuny <franck@fcuny.net>
Date: Fri, 12 Sep 2025 13:11:20 -0700
Subject: start to refactor nixos modules

---
 profiles/core/cgroups.nix | 75 -----------------------------------------------
 1 file changed, 75 deletions(-)
 delete mode 100644 profiles/core/cgroups.nix

(limited to 'profiles/core/cgroups.nix')

diff --git a/profiles/core/cgroups.nix b/profiles/core/cgroups.nix
deleted file mode 100644
index 07dc964..0000000
--- a/profiles/core/cgroups.nix
+++ /dev/null
@@ -1,75 +0,0 @@
-# Stolen from https://git.lix.systems/the-distro/infra/src/branch/main/common/cgroups.nix
-# Relatively inspired by fbtax2:
-# https://facebookmicrosites.github.io/cgroup2/docs/fbtax-results.html
-{ ... }:
-let
-  systemCriticalSliceConfig = {
-    ManagedOOMMemoryPressure = "kill";
-
-    # guarantee availability of memory
-    MemoryMin = "192M";
-    # default 100
-    IOWeight = 1000;
-    # default 100
-    CPUWeight = 1000;
-  };
-in
-{
-  systemd.oomd = {
-    enable = true;
-    enableRootSlice = true;
-    enableSystemSlice = true;
-    enableUserSlices = true;
-  };
-
-  systemd.services.nix-daemon = {
-    serviceConfig = {
-      CPUWeight = 10;
-      IOWeight = 10;
-    };
-  };
-
-  systemd.slices.hostcritical = {
-    description = "Ensures that services to keep the system alive remain alive";
-
-    unitConfig = {
-      # required to avoid a dependency cycle on systemd-oomd. systemd will
-      # actually guess this right but we should fix it anyway.
-      DefaultDependencies = false;
-    };
-
-    sliceConfig = systemCriticalSliceConfig;
-  };
-
-  # make root logins higher priority for resources
-  systemd.slices."user-0" = {
-    sliceConfig = systemCriticalSliceConfig;
-  };
-
-  systemd.slices.system = {
-    sliceConfig = {
-      ManagedOOMMemoryPressure = "kill";
-      ManagedOOMMemoryPressureLimit = "50%";
-
-      IOWeight = 100;
-    };
-  };
-
-  systemd.services.sshd = {
-    serviceConfig = {
-      Slice = "hostcritical.slice";
-    };
-  };
-
-  systemd.services.systemd-oomd = {
-    serviceConfig = {
-      Slice = "hostcritical.slice";
-    };
-  };
-
-  systemd.services.systemd-journald = {
-    serviceConfig = {
-      Slice = "hostcritical.slice";
-    };
-  };
-}
-- 
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