3:58 a.m.
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.
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