not using the 'professional' mysql connstring leads to huge garbage

plain/setup.py

@@ -10,8 +10,8 @@ def start(args):
     subprocess.check_call("./sbt.bat assembly", shell=True, cwd="plain")
   else:
     subprocess.check_call("./sbt assembly", shell=True, cwd="plain")
-      
-  subprocess.Popen("java -server -Xnoclassgc -XX:MaxPermSize=1g -XX:ReservedCodeCacheSize=384m -Xmx8g -Xss8m -Xmn4g -jar target/scala-2.10/plain-benchmark-assembly-1.0.1.jar", cwd="plain", shell=True)
+     
+  subprocess.Popen("java -server -Xnoclassgc -XX:MaxPermSize=1g -XX:ReservedCodeCacheSize=384m -Xmx8g -Xss8m -Xmn4g -Xms6g -XX:+AggressiveOpts -XX:+UseBiasedLocking -XX:+UseG1GC -XX:MaxGCPauseMillis=200 -jar target/scala-2.10/plain-benchmark-assembly-1.0.1.jar", cwd="plain", shell=True)
   time.sleep(10)
   return 0
 

plain/src/main/resources/application.conf

@@ -32,7 +32,7 @@ benchmark-mysql {
 	name = MysqlBenchmark
 	driver = mysql-5-6-12
 	datasource-settings {	
-		setUrl = "jdbc:mysql://127.0.0.1:3306/hello_world"
+        	setUrl = "jdbc:mysql://127.0.0.1:3306/hello_world?jdbcCompliantTruncation=false&elideSetAutoCommits=true&dontTrackOpenResources=true&enableQueryTimeouts=false&useLocalSessionState=true&cachePrepStmts=true&cacheCallableStmts=true&alwaysSendSetIsolation=false&prepStmtCacheSize=1024&cacheServerConfiguration=true&prepStmtCacheSqlLimit=2048&zeroDateTimeBehavior=convertToNull&traceProtocol=false&useUnbufferedInput=false&useReadAheadInput=true&maintainTimeStats=false&useServerPrepStmts&cacheRSMetadata=true&poolPreparedStatements=true&maxOpenPreparedStatements=100"
 		setUser = "benchmarkdbuser"
 		setPassword = "benchmarkdbpass"
 	}