Enhance s:cache performances
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.
