Added support for optimized SIMD operations (#1570)

README.md

@@ -1570,6 +1570,14 @@ To enable the JVM flags required to fully support the [Flare profiling suite](ht
     
 Flare is built-in to Airplane/Pufferfish/Purpur, and is available in [plugin form](https://github.com/TECHNOVE/FlarePlugin) for other server types.
 
+### Enable support for optimized SIMD operations
+
+To enable support for optimized SIMD operations, the JVM flag can be set with the following variable:
+
+    -e USE_SIMD_FLAGS=true
+
+SIMD optimized operations are supported by Pufferfish and Purpur.
+
 ### Enable timestamps in init logs
 
 Before the container starts the Minecraft Server its output is prefixed with `[init]`, such as

scripts/start-finalExec

@@ -186,6 +186,12 @@ if isTrue "${USE_FLARE_FLAGS}"; then
   "
 fi
 
+if isTrue "${USE_SIMD_FLAGS}"; then
+  JVM_XX_OPTS="${JVM_XX_OPTS}
+  --add-modules=jdk.incubator.vector
+  "
+fi
+
 if isTrue "${DEBUG_MEMORY}"; then
   log "Memory usage and availability (in MB)"
   uname -a