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commit f68b3f4e03a417563685da9eee97844361b2fa55
parent 8b45999ef3f3161df80d33e478c923a1e405b624
Author: Vincent Demeester <vincent@sbr.pm>
Date:   Mon, 13 May 2024 17:27:12 +0200

core: update nix daemon "scheduler" policies…

… should help not overload the laptop, and hopefully doesn't hurt
build performance too much.

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

Diffstat:
M
systems/modules/core/nix.nix
 | 
17
+++++++----------

1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/systems/modules/core/nix.nix b/systems/modules/core/nix.nix
@@ -57,16 +57,13 @@ in
           "vdemeester.cachix.org-1:eZWNOrLR9A9szeMahn9ENaoT9DB3WgOos8va+d2CU44="
         ];
       };
-      # FIXME handle this depending on the version
-      # 21.05 has the following
-      # daemonIONiceLevel, daemonNiceLevel
-      # 21.11 and above
-      # daemonCPUSchedPolicy, daemonIOSchedClass, daemonIOSchedPriority
-
-      #daemonIONiceLevel = 5;
-      #daemonNiceLevel = 10;
-      daemonIOSchedPriority = 5;
-      daemonCPUSchedPolicy = "batch";
+      # On laptops at least, make the daemon and builders low priority
+      # to have a responding system while building
+      daemonIOSchedClass = "idle";
+      daemonCPUSchedPolicy = "idle";
+      # FIXME: On servers, we may change this.
+      # daemonIOSchedPriority = 5;
+      # daemonCPUSchedPolicy = "batch";
 
       # if hydra is down, don't wait forever
       extraOptions = ''