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-rw-r--r--machines/wolfram/devices.nix8
1 files changed, 8 insertions, 0 deletions
diff --git a/machines/wolfram/devices.nix b/machines/wolfram/devices.nix
index 18ed3af..3c5dd01 100644
--- a/machines/wolfram/devices.nix
+++ b/machines/wolfram/devices.nix
@@ -5,6 +5,14 @@
   boot = {
     kernelPackages = pkgs.linuxPackages_latest;
 
+    kernelParams = [
+      # checking for cache splitting destroys performance on some
+      # windows games running via wine/proton, disable it and
+      # tank their performance impact, which is lower than checking
+      # and handling the splits.
+      "split_lock_detect=off"
+    ];
+
     # do not use default kernel module (r8169) for the realtek rtl8125 ethernet
     # controller, as it has issues with packet loss and can't keep up with the high
     # 2.5g link speed.