IBM 6.1.X Com.ibm.wps.model.factory.SimpleCacheKey, Com.ibm.wps.model.content.impl.ResourceCache

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Figure 29 describes the hierarchy of caches in the model component and depending portal components. The structure of the picture is identical to figure 28: The vertical axis shows caches with increasing aggregation of data. The model component only caches data at a rather high aggregation level. All data cached here hence is rather valuable, reloads can be expensive if the corresponding data is not available in the lower-level caches. Model caches are dependent upon the datastore and portal access control caches. The figure only features the most important caches.

Figure 2 Portal Model Cache Hierarchy

com.ibm.wps.model.factory.SimpleCacheKey

Default size: 2500, default lifetime: infinite, usage pattern: regular.

This cache is a helper cache for other model caches used by the portal model factory. It contains a small number of entries based on the model types available in portal. In addition there can be one entry per active user session. The size of this cache might be adapted to the number of active sessions in one portal JVM. Re-creating a cache entry is a rather cheap operation since it usually can be accomplished in memory. A cache entry is a small object.

com.ibm.wps.model.content.impl.ResourceCache

Default size: 5000, default lifetime: 5600, usage pattern: regular.

This cache contains aggregated pages. In contrast to the data store page instance cache this cache contains the complete models of pages and their content, i.e. the portlets and containers on them. The page instance cache rather holds the raw page data. This cache scales with the number of pages defined in your portal and the different

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W E BS P HE R E P O R T AL V 6 . 1 T U N I N G G U I D E

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Contents IBM WebSphere Portal software family Your world. Your way IBM WebSphere PortalContents Web Server Tuning Portlet Caching General Information Figures About this Document Performance Tuning Overview Environment Considerations Base Portal Tuning How to get to Admin Console Application Server TuningInitial 1792 2048 ParameterLinux Solaris Windows 2003POWER5 Parameter Value Additional Information New Area Size Xmn320m Xmn256m Xmn768m Xmn1024mTimeout Session MinutesWeb Container Thread pool Size Propagation Name ValueContext Pool Setting Default Value How to SetDefault Value Definition Used WebSphere Portal ServicesG I S T R Y S E R V I C E Cache Name Default Value Value UsedDatabase Database name Datasource name Database Tuning2 O N a I X S E T U P Db2 reorgchk update statistics on table all Db2 reorgchk current statistics on table all reorgchk.txt A C L E D a T a B a S E S E R V E R T U N I N G Parameter Value AIXTHREADSCOPE=SExecute Db2 update db config for idsldap using dbheap Directory Server TuningLinux Windows Additional Information Web Server TuningMinSpareThreads MaxSpareThreads Operating System Tuning N U T W O R K T U N I N G How-to-Setndd -set /dev/tcpPARAMETER Value L a R I S C O N T a I N E R Maxthreadtasks Required FixesJVM Initial and Maximum Heap Size WEB 2.0 Theme TuningNavigator Service Properties Parameter Setting UsedCaching Proxy Tuning Parameter Setting Used Additional InformationInternet Explorer Support of Vary Header # set cache-control public for various static content # uncommented these to enable statics to be cachedExpiresActive On Portlet CachingMany Pages Tuning DB2 Database TuningRelease DB Parameter Cache Manager Service WEB Content Management Tuning Cache Name WebSphere Portal Service PropertiesWCM Object Cache JCR Text Search WCM Configuration ServiceDB2 Tuning Authoring Environment DB2 BP4 Cache Manager Service Properties Composite Applications TuningComposite Applications Best Practices BS P HE R E P O R T AL V 6 T U N I N G G U I D E Value true Cluster TuningHow-To Set ThreadLimit ServerLimit Parameter Setting Additional Details Session Persistence To Database TuningVertical Cluster Tuning IBM Tivoli Directory Server Tuning Improving Portal Startup Performance Other Performance Tuning OptionsManaging the Retrieval of User Attributes BS P HE R E P O R T AL V 6 T U N I N G G U I D E Use of Dynamic Content Features Real-World Network Considerations BrowserMatch Mozilla/4 gzip-only-text/html General Information Websphere Portal CachesBS P HE R E P O R T AL V 6 T U N I N G G U I D E BS P HE R E P O R T AL V 6 T U N I N G G U I D E Pattern invalidation checking Cache Usage PatternsCache Instances Com.ibm.wps.ac.PermissionCollectionCache Portal Access Control Cache HierarchyCom.ibm.wps.ac.RolesCache Com.ibm.wps.ac.AccessControlUserContextCacheCom.ibm.wps.ac.ProtectedResourceCache Com.ibm.wps.ac.OwnedResourcesCacheCom.ibm.wps.ac.ExternalOIDCache Com.ibm.wps.ac.ChildResourcesCache Com.ibm.wps.ac.ApplicationRoleOIDCacheCom.ibm.wps.ac.ApplicationRoleDescriptorCache Com.ibm.wps.puma.DNOIDCache / com.ibm.wps.puma.OIDDNCache Com.ibm.wps.ac.ApplicationRolesForPrincipalCacheCom.ibm.wps.ac.ContainedRolesCache Com.ibm.wps.ac.ApplicationRoleChildrenCacheCom.ibm.wps.datastore.PortalIdCache.vpPerLpid.cache Com.ibm.wps.datastore.PortalIdCache.explicitLpidPerVPCom.ibm.wps.datastore.pageinstance.OIDCache Com.ibm.wps.datastore.pageinstance.DynamicNodeCache Com.ibm.wps.datastore.pageinstance.DerivationCacheCom.ibm.wps.model.factory.SimpleCacheKey Com.ibm.wps.model.content.impl.ResourceCacheCom.ibm.wps.model.factory.ContentModelCache.live Com.ibm.wsp.mode.content.impl.TopologyCacheCom.ibm.wps.model.factory.URLMappingCache.live Com.ibm.wps.model.factory.ContentModelCache.isolatedCom.ibm.wps.model.factory.MultiModelCache.isolated Com.ibm.wps.model.content.impl.DynamicLoadCacheCom.ibm.wps.model.factory.URLMappingCache.isolated Com.ibm.wps.model.factory.MultiModelCache.liveWps.mappingurl.LookupCache Com.ibm.wps.services.vpmapping.VirtualPortalIDToRealmCacheCom.ibm.wps.model.impl.RuntimeClientMap.userAgent2client Wps.mappingurl.ContextsCacheCom.ibm.wps.services.vpmapping.VirtualPortalIDToURLCache Com.ibm.wps.services.vpmapping.URLToVirtualPortalIDCacheWsrp.cache.portletdescription Wsrp.cache.portlet.window Wsrp.cache.servicedescriptionWsrp.cache.portlet.instance Wsrp.cache.producer.userWp.te.transformationAssociationCache Wsrp.producer.portletpool.popsWsrp.producer.portletpool.ccps Processintegration.PendingTasksCacheCom.ibm.wps.policy.services.UserPolicyNodeCacheManager Com.ibm.wps.policy.services.PolicyCacheManagerCom.lotus.cs.services.directory.wmm.WMMDirectoryService Com.lotus.cs.services.UserEnvironmentCom.lotus.cs.services.domino.DominoService Wp.xml.configitems Com.ibm.wps.pe.portletentityPortletMenuCache Com.ibm.workplace.searchmenu.helper.SearchMenuCacheHelper RegistryServiceExample Scenarios BS P HE R E P O R T AL V 6 T U N I N G G U I D E R T a L S W I T H L O N G S E S S I O N T I M E O U T S BS P HE R E P O R T AL V 6 T U N I N G G U I D E WCM Cache Instances WEB Content Management CachesServices/cache/iwk/strategy WCM Item caching Services/cache/iwk/objectsummary WCM SummaryServices/cache/iwk/module Services/cache/iwk/processing Advanced and Resour cesServices/cache/iwk/session Session Services/cache/iwk/missed Missed Items Services/cache/iwk/menu MenuServices/cache/iwk/nav Navigator Services/cache/iwk/abspath Absolute pathServices/cache/iwk/libparent Library Parent Services/cache/iwk/draftSummary Draft SummaryUser cache Appendix A. References Lee Backstrom, Document Coordinator Mark Alkins, ManagerBS P HE R E P O R T AL V 6 T U N I N G G U I D E