PDFSystemAnalysisandTuningPDF系统与调优.pdf

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1、SystemAnalysisandTuningGuideSUSELinuxEnterpriseServer12SP3SystemAnalysisandTuningGuideSUSELinuxEnterpriseServer12SP3Anadministrator'sguideforproblemdetection,resolutionandoptimization.Findhowtoinspectandoptimizeyoursystembymeansofmonitoringtoolsandhowtoefficientlymanageresources.Alsocontainsanov

2、erviewofcommonproblemsandsolutionsandofadditionalhelpanddocumentationresources.PublicationDate:September 01, 2017SUSELLC10CanalParkDriveSuite200CambridgeMA02141USAhttps://www.suse.com/documentationCopyright©2006–2017SUSELLCandcontributors.Allrightsreserved.Permissionisgrantedtocopy,distributeand

3、/ormodifythisdocumentunderthetermsoftheGNUFreeDocu-mentationLicense,Version1.2or(atyouroption)version1.3;withtheInvariantSectionbeingthiscopyrightnoticeandlicense.Acopyofthelicenseversion1.2isincludedinthesectionentitled“GNUFreeDocumentationLicense”.ForSUSEtrademarks,seehttp://www.suse.com/compa

4、ny/legal/.Allotherthird-partytrademarksaretheprop-ertyoftheirrespectiveowners.Trademarksymbols(®,™etc.)denotetrademarksofSUSEanditsaffiliates.Asterisks(*)denotethird-partytrademarks.Allinformationfoundinthisbookhasbeencompiledwithutmostattentiontodetail.However,thisdoesnotguaranteecompleteaccura

5、cy.NeitherSUSELLC,itsaffiliates,theauthorsnorthetranslatorsshallbeheldliableforpossibleerrorsortheconsequencesthereof.ContentsAboutThisGuidexiiIBASICS11GeneralNotesonSystemTuning21.1BeSureWhatProblemtoSolve21.2RuleOutCommonProblems31.3FindingtheBottleneck41.4Step-by-stepTuning4IISYSTEMMONITORING

6、52SystemMonitoringUtilities62.1Multi-PurposeTools7vmstat7•dstat10•SystemActivityInformation:sar112.2SystemInformation15DeviceLoadInformation:iostat15•ProcessorActivityMonitoring:mpstat16•ProcessorFrequencyMonitoring:turbostat16•TaskMonitoring:pidstat17•KernelRingBuffer:dmesg17•ListofOpenFiles:ls

7、of18•KernelandudevEventSequenceViewer:udevadmmonitor182.3Processes19InterprocessCommunication:ipcs19•ProcessList:ps20•ProcessTree:pstree21•TableofProcesses:top22•z SystemsHypervisorMonitor:hyptop23•Atop-likeI/OMonitor:iotop2