minecraft java settings

#Settings
SERVICE='minecraft_server.jar'
USERNAME='minecraft'
WORLD='world'
MCPATH='/home/minecraft/server'
WEBPATH='/home/minecraft/public_html'
BACKUPPATH='/home/minecraft/backups'
HACKLOG='/home/minecraft/HACKLOG.minecraft'
MAXHEAP=8192
MINHEAP=4096
MAXPERM=256
MINPERM=128
HISTORY=1024
CPU_COUNT=2
INVOCATION="java -server -d64 \
-Xmx${MAXHEAP}M -Xms${MINHEAP}M -XX:PermSize=${MINPERM}M -XX:MaxPermSize=${MAXPERM}M \
-XX:ParallelGCThreads=$CPU_COUNT \
-XX:+UseG1GC \
-XX:+AggressiveOpts \
-XX:+UseFastAccessorMethods \
-XX:+UseNUMA \
-XX:+DisableExplicitGC \
-XX:SurvivorRatio=15 \
-XX:TargetSurvivorRatio=90 \
-XX:MaxGCPauseMillis=200 \
-jar $SERVICE nogui"