3 Replies Latest reply on Nov 27, 2007 6:08 AM by Orsier Adrien

    Enhance s:cache performances

    Orsier Adrien Newbie

      Hi!

      I'm currently working on a big page displaying a topic and every of its children hierarchically.
      Since these topics can have a lot of children, I figured out I should cache my page to enhance my performances.

      I actually managed to cache it, jumping from a poor 40s~ page generation time to a big but-still-not-great enhancement to 6s.
      I actually don't understand why it takes so much time, since as far as I understood, the whole page should be cached, so it should basically result to a 'static page', ie. almost an instant loading.

      Here's the code:

      <!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      <ui:composition xmlns="http://www.w3.org/1999/xhtml"
       xmlns:s="http://jboss.com/products/seam/taglib"
       xmlns:ui="http://java.sun.com/jsf/facelets"
       xmlns:f="http://java.sun.com/jsf/core"
       xmlns:h="http://java.sun.com/jsf/html"
       xmlns:rich="http://richfaces.ajax4jsf.org/rich"
       xmlns:a4j="https://ajax4jsf.dev.java.net/ajax"
       xmlns:c="http://java.sun.com/jstl/core"
       template="/layout/template.xhtml">
      
      
       <ui:define name="body">
       <s:cache key="#{topicHome.instance}" region="/Topic" enabled="true">
       <h:form>
       <s:link value="#{messages['lrb.message.back_to_main_list']}" view="/Thesaurus.xhtml"/>
       <h:outputText value=" | " />
       <h:inputText value="#{searchTopic}" />
       <h:commandButton value="#{messages['lrb.action.search']}"
       action="#{thesaurusManager.searchTopic()}" />
       <br />
       <br />
       <h:commandLink action="#{thesaurusManager.showTopic(topicHome.instance)}"
       value="#{topicHome.instance.name}" />
       <h:commandLink
       action="#{thesaurusManager.selectTopic(topicHome.instance)}"
       value="(#{topicHome.instance.relatedBooks} #{messages['lrb.thesaurus.hits']})"
       rendered="#{topicHome.instance.relatedBooks.intValue() != 0}" />
       <br />
       <ui:include src="/layout/alphabetLinks.xhtml"/>
       <br />
       <ul>
       <table id ="thesaurusResultTable">
       <tr>
       <c:forEach items="#{topicHome.instance.sortedColumnedChildren}"
       var="superList">
       <td>
       <c:forEach items="#{superList}" var="list">
       <c:forEach items="#{list}" var="t">
       <a name="#{t.name.substring(0,1)}" />
       <f:subview >
       <li><s:link view="/showTopic" value="#{t.name}" propagation="nest"> <f:param name="topicId" value="#{t.id}" /> </s:link>
       (<s:link value="#{t.relatedBooks} #{messages['lrb.thesaurus.hits']}" view="/showBooks" propagation="nest"> <f:param name="topicId" value="#{t.id}"/> </s:link>)</li>
       <ui:include src="/showChild.xhtml">
       <ui:param name="topic" value="#{t}" />
       </ui:include>
       </f:subview>
       </c:forEach>
       <br />
       </c:forEach></td>
       </c:forEach>
      
       </tr>
       </table>
      
       </ul>
       </h:form>
       </s:cache>
       </ui:define>
      
      </ui:composition>
      


      This page is the main one, the one I surrounded with s:cache tag.
      Then showChild is called recursively to load every children:
       <c:forEach items="#{topic.children}" var="t">
       <f:subview>
       <ul>
       <li><s:link view="/showTopic" value="#{t.name}" propagation="nest"> <f:param name="topicId" value="#{t.id}" /> </s:link> (<s:link value="#{t.relatedBooks} #{messages['lrb.thesaurus.hits']}" view="/showBooks" propagation="nest"> <f:param name="topicId" value="#{t.id}"/> </s:link>)</li>
      
       <ui:include src="/showChild.xhtml">
       <ui:param name="topic" value="#{t}" />
       </ui:include>
      
       </ul>
       </f:subview>
       </c:forEach>



      Then, finally, my treecache.xml config file:
      <?xml version="1.0" encoding="UTF-8"?>
      
      <!-- ===================================================================== -->
      <!-- -->
      <!-- PojoCache Service Configuration -->
      <!-- -->
      <!-- ===================================================================== -->
      
      <server>
      
       <!-- Used inside JBoss AS
       <classpath codebase="./lib" archives="jboss-cache.jar, jgroups.jar"/>
       -->
      
       <!-- ==================================================================== -->
       <!-- Defines configuration -->
       <!-- ==================================================================== -->
      
       <mbean code="org.jboss.cache.aop.PojoCache" name="jboss.cache:service=testPojoCache">
      
       <!-- Used inside JBoss AS -->
       <depends>jboss:service=Naming</depends>
       <depends>jboss:service=TransactionManager</depends>
      
       <!--
       Configure the TransactionManager
       <attribute name="TransactionManagerLookupClass">org.jboss.cache.DummyTransactionManagerLookup</attribute>
       -->
      
       <!--
       Node locking scheme:
       OPTIMISTIC
       PESSIMISTIC (default)
       -->
       <attribute name="NodeLockingScheme">PESSIMISTIC</attribute>
      
       <!--
       Note that this attribute is IGNORED if your NodeLockingScheme above is OPTIMISTIC.
      
       Isolation level : SERIALIZABLE
       REPEATABLE_READ (default)
       READ_COMMITTED
       READ_UNCOMMITTED
       NONE
       -->
       <attribute name="IsolationLevel">REPEATABLE_READ</attribute>
      
       <!--
       Valid modes are LOCAL
       REPL_ASYNC
       REPL_SYNC
       INVALIDATION_ASYNC
       INVALIDATION_SYNC
       -->
       <attribute name="CacheMode">LOCAL</attribute>
      
       <!-- Name of cluster. Needs to be the same for all clusters, in order
       to find each other
       -->
       <attribute name="ClusterName">Sample-Cluster</attribute>
      
       <!-- JGroups protocol stack properties. Can also be a URL,
       e.g. file:/home/bela/default.xml
       <attribute name="ClusterProperties"></attribute>
       -->
      
       <attribute name="ClusterConfig">
       <config>
       <!-- UDP: if you have a multihomed machine,
       set the bind_addr attribute to the appropriate NIC IP address -->
       <!-- UDP: On Windows machines, because of the media sense feature
       being broken with multicast (even after disabling media sense)
       set the loopback attribute to true -->
       <UDP mcast_addr="228.1.2.5" mcast_port="45577" ip_ttl="64" ip_mcast="true" mcast_send_buf_size="150000"
       mcast_recv_buf_size="80000" ucast_send_buf_size="150000" ucast_recv_buf_size="80000" loopback="false" />
       <PING timeout="2000" num_initial_members="3" up_thread="false" down_thread="false" />
       <MERGE2 min_interval="10000" max_interval="20000" />
       <FD shun="true" up_thread="true" down_thread="true" />
       <VERIFY_SUSPECT timeout="1500" up_thread="false" down_thread="false" />
       <pbcast.NAKACK gc_lag="50" retransmit_timeout="600,1200,2400,4800" up_thread="false" down_thread="false" />
       <pbcast.STABLE desired_avg_gossip="20000" up_thread="false" down_thread="false" />
       <UNICAST timeout="600,1200,2400" window_size="100" min_threshold="10" down_thread="false" />
       <FRAG frag_size="8192" down_thread="false" up_thread="false" />
       <pbcast.GMS join_timeout="5000" join_retry_timeout="2000" shun="true" print_local_addr="true" />
       <pbcast.STATE_TRANSFER up_thread="false" down_thread="false" />
       </config>
       </attribute>
      
      
       <!--
       The max amount of time (in milliseconds) we wait until the
       initial state (ie. the contents of the cache) are retrieved from
       existing members in a clustered environment
       -->
       <attribute name="InitialStateRetrievalTimeout">20000</attribute>
      
       <!--
       Number of milliseconds to wait until all responses for a
       synchronous call have been received.
       -->
       <attribute name="SyncReplTimeout">15000</attribute>
      
       <!-- Max number of milliseconds to wait for a lock acquisition -->
       <attribute name="LockAcquisitionTimeout">10000</attribute>
      
       <!-- Name of the eviction policy class. We have commented it off to disable eviction.
       -->
       <attribute name="EvictionPolicyClass">org.jboss.cache.aop.eviction.AopLRUPolicy</attribute>
      
       <!-- Specific eviction policy configurations. This is LRU -->
       <attribute name="EvictionPolicyConfig">
       <config>
       <attribute name="wakeUpIntervalSeconds">5</attribute>
       <!-- Cache wide default -->
       <region name="/_default_">
       <attribute name="maxNodes">5000</attribute>
       <attribute name="timeToLiveSeconds">5</attribute>
       </region>
       <region name="/aop">
       <attribute name="maxNodes">5</attribute>
       <attribute name="timeToLiveSeconds">4</attribute>
       </region>
       <region name="/pojo">
       <attribute name="maxNodes">100</attribute>
       <attribute name="timeToLiveSeconds">4</attribute>
       </region>
       <region name="/Topic">
       <attribute name="maxNodes">5000</attribute>
       <attribute name="timeToLiveSeconds">10000</attribute>
       <attribute name="maxAgeSeconds">1800</attribute>
       </region>
       </config>
       </attribute>
       </mbean>
      
      </server>


      I guess there's something wrong with my config file or something, though I'm not sure and couldn't find something related to it in the 'not-so-friendly' jboss cache's documentation.

      Thanks for your help.