From 99bfe312fd30c8927633dce5f54a846cbd9e579f Mon Sep 17 00:00:00 2001
From: Roy Dumblauskas <roydumblauskas@gmail.com>
Date: Sat, 21 Jun 2025 12:12:28 -0500
Subject: [PATCH] new jvm opts

---
 nixos/configuration.nix | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index ed76cff..fffee58 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -110,7 +110,17 @@
       motd = "NixOS Minecraft server!";
       allow-cheats = true;
     };
-    jvmOpts = "-Xms4092M -Xmx4092M -XX:+UseG1GC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=2 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10 -Djava.net.preferIPv4Stack=true";
+    jvmOpts = "
+      -Xms4096M
+      -Xmx4096M
+      -XX:+UseG1GC
+      -XX:+UnlockExperimentalVMOptions
+      -XX:G1NewSizePercent=20
+      -XX:G1ReservePercent=20
+      -XX:MaxGCPauseMillis=50
+      -XX:G1HeapRegionSize=32M
+      -Djava.net.preferIPv4Stack=true
+    ";
   };
   
   # ================================ #