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ID:38392902
大小:369.50 KB
页数:46页
时间:2019-06-11
《23-Appendix-OSTU》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、(Appendix)OSTuningObjectivesAftercompletingthislesson,youshouldbeabletotuneparametersin:WindowsUnixLinuxRoadMapWindowsTuningParametersUnixTuningParametersLinuxTuningParametersHKLMSystemCurrentControlSetServicesInetInfoParametersWindows2000:WebServerRegistryTheth
2、reeWebserverregistrysettingsinthatcanhaveasignificantimpactonWebserverperformanceare:MemCacheSizeObjectCacheTTLMaxCachedFileSizeMemCacheSizeHKLMSystemCurrentControlSetServicesInetInfoParametersMemCacheSizeisthesizeofthevirtualmemorythatInternetInformationService
3、s(IIS)usestocachestaticfiles.Thelargerthisvalue,themorespaceIIShastocachecontentforfasterdelivery.AsmallervaluecanresultinhighCPUusage,becausepopularfilesmightnotgetcached.Alargervaluecancauseexcessivepaging.ObjectCacheTTLHKLMSystemCurrentControlSetServicesInetIn
4、foParametersObjectCacheTTListhelengthoftimeafileremainsintheIIScachebeforebeingremoved.Thisismeasuredfromthetimewhenthefilewaslastrequested.Eachtimeafileisaccessed,thetimeisreset.Thedefaultis60seconds;increaseitifphysicalmemoryisavailable.Asmallervaluecanresultinhig
5、hCPUusagewithfilesbeingremovedfromthecacheonlytobeaddedagain.Alargervalueresultsinstalefileskeepingotherfilesfrombeingcached.MaxCachedFileSizeHKLMSystemCurrentControlSetServicesInetInfoParametersMaxCachedFileSizeisthesizeofthelargestfilethatIISwillcache.Thedefau
6、ltsettingis256KB;increaseifphysicalmemoryisavailable.Asmallervaluecanresultinlargefilesnotbeingcached,eventhoughspacemaybeavailable.AlargervaluecanresultinlargefilescrowdingoutsmallfilesintheIIScache.Windows2000:BackgroundServicesSettheApplicationResponsetoOptimizePe
7、rformanceforBackgroundServicesontheserver.Thisisthedefaultsettingandyoucanverifyitbyright-clickingthecomputericononthedesktopandselectingProperties.ThenselecttheAdvancedtabandclickthePerformanceOptionsbutton.WindowsXP:VisualEffectsChangethesettingforVisualEffectsto“A
8、djustforbestperformance.”Right-clickthecomputericononthedesktopandselectProperties.ThenselecttheAdvancedtabandclickthePerformanceSe
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