increase huge pages size

2026-03-03 12:23:05 -05:00
parent 49e614cc8b
commit 6c4620173b
1 changed files with 3 additions and 2 deletions
--- a/configuration.nix
+++ b/configuration.nix
@@ -164,8 +164,9 @@
      # Minecraft server optimizations
      # Disable autogroup for better scheduling of game server threads
      "kernel.sched_autogroup_enabled" = 0;
-      # Huge pages for Minecraft JVM (4000MB heap / 2MB per page + ~200 overhead)
-      "vm.nr_hugepages" = 2200;
+      # Huge pages for Minecraft JVM (ZGC ZGenerational needs heap + ~15% overhead)
+      # 4000MB heap = 2000 pages, plus ~285 for ZGC metadata = ~2285 needed
+      "vm.nr_hugepages" = 2600;
    };
  };