Small Application Taking Time To Load

I have a small web application developed using Icefaces 1.8.2 and jsf 1.1 which is deployed to Oracle Application Server 10.1.3. I have noticed that it is taking a while to load the application initially and once loaded speed is satisfactory.

How can I improve the initial loading time of the application?

Update 1

I a query which takes 2-3 seconds in back end, however when I render the same in front-end it takes almost 7 seconds. Number of rows is only 1080. I am rendering these records in datatable. What could be the reason for this?

Update 2

web.xml

<web-app xmlns="http://java.sun.com/xml/ns/j2ee/web-app_2_3.xsd">
    <context-param>
        <param-name>com.icesoft.faces.debugDOMUpdate</param-name>
        <param-value>false</param-value>
    </context-param>
    <context-param>
        <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
        <param-value>server</param-value>
        <description>State saving method: "client" or "server" (= default) See JSF Specification
                     2.5.2</description>
    </context-param>
    <context-param>
        <param-name>com.icesoft.faces.concurrentDOMViews</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>com.icesoft.faces.synchronousUpdate</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>com.icesoft.faces.connectionTimeout</param-name>
        <param-value>100000</param-value>
    </context-param>
    <context-param>
        <param-name>com.icesoft.faces.standardRequestScope</param-name>
        <param-value>false</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.redirectTracker.POLICY</param-name>
        <param-value>org.apache.myfaces.custom.redirectTracker.policy.FullRedirectTrackPolicy</param-value>
    </context-param>
    <context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>app1</param-value>
    </context-param>
    <!-- Faces Servlet -->
    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet>
        <servlet-name>Persistent Faces Servlet</servlet-name>
        <servlet-class>com.icesoft.faces.webapp.xmlh开发者_高级运维ttp.PersistentFacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet>
        <servlet-name>Blocking Servlet</servlet-name>
        <servlet-class>com.icesoft.faces.webapp.xmlhttp.BlockingServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <!-- extension mapping -->
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.jsf</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>Persistent Faces Servlet</servlet-name>
        <url-pattern>*.jsf</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>Persistent Faces Servlet</servlet-name>
        <url-pattern>*.jspx</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>Persistent Faces Servlet</servlet-name>
        <url-pattern>*.iface</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>Persistent Faces Servlet</servlet-name>
        <url-pattern>/xmlhttp/*</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>Blocking Servlet</servlet-name>
        <url-pattern>/block/*</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>10000</session-timeout>
    </session-config>
    <!-- Welcome files -->
    <welcome-file-list>
        <welcome-file>index.jsf</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
    <listener>
        <listener-class>com.icesoft.faces.util.event.servlet.ContextEventRepeater</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!-- Spring Security -->
    <filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

applicationContext.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:security="http://www.springframework.org/schema/security"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd   http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.2.xsd">    
    <security:authentication-manager alias="_authenticationManager" />   
    <bean id="authenticationProvider"
          class="com.icesoft.icefaces.security.UserDetailsAuthenticationProvider">
        <security:custom-authentication-provider/>
        <property name="userDetailsService" ref="userDetailsService"/>
    </bean>
    <bean id="userDetailsService" class="com.icesoft.icefaces.security.UserDetailsServiceImpl">      
         <constructor-arg ref="userRepository"/>
    </bean>
    <bean id="userRepository"
          class="com.icesoft.icefaces.security.UserDaoImpl"/>
    <bean id="ntlmFilter" class="org.springframework.security.ui.ntlm.NtlmProcessingFilter">
        <security:custom-filter position="NTLM_FILTER"/>
        <property name="stripDomain" value="true"/>
    <property name="defaultDomain" value="XYZ"/>
    <property name="authenticationManager" ref="_authenticationManager" />
    </bean>
    <bean id="ntlmEntryPoint"
          class="org.springframework.security.ui.ntlm.NtlmProcessingFilterEntryPoint">
        <property name="authenticationFailureUrl" value="/accessDenied.jspx"/>
    </bean>
    <bean id="exceptionTranslationFilter"
          class="org.springframework.security.ui.ExceptionTranslationFilter">
        <property name="authenticationEntryPoint" ref="ntlmEntryPoint"/>
    </bean>
    <security:http access-denied-page="/denied.xhtml" entry-point-ref="ntlmEntryPoint"
                   servlet-api-provision="false">
        <security:intercept-url pattern="/accessDenied.jspx" filters="none"/>
        <security:intercept-url pattern="/**" access="ROLE_USER"/>
    </security:http>
</beans>

Appreciate any help. Thanks

Its better to use pagination at database-end rather then fetching all records at a time. The end-user will see at-most 10-20 records at a time on screen & probably will neglect most of the results.

Also you can introduce sorting on specific columns so that the user can find results better. Let user migrate to the specific result page directly of the total result pages found, without going through each result page.

This will reduce fetching unnecessary records from the database & may increase performance when accessed by many users.

Have you tried testing on a different application server? I've not used Oracle Application Server, but I have seen significantly slower start up for an app running on jetty compared to the same app running on Tomcat. I suggest trying Tomcat. Even if that's not an actual deployment option for you, this should at least help diagnosis.

I have improved the performance of the application to a satisfactory level by re-writing some code and sql statements.

Thanks to all for the help.