CPACT：云处理器可访问性合规性工具.pdf

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1、Alex Akesson,MicrosoftRajat Madhusudan,MicrosoftCPACT:Cloud Processor Accessibility Compliance ToolCPACT:Cloud Processor Accessibility Compliance ToolAlex Akesson,MicrosoftRajat Madhusudan,MicrosoftTEST&VALIDATIONHyperscale CPU StandardsIntegrating multiple vendors of CPUs(x86,ARM)products and featu

2、res at hyperscale requires standardization.Challenges arise in adopting vendor-specific technologies in CPU hardware Debug,Diagnostics&RAS,and Impactless Firmware Updates.These challenges are not differentiating and are not hyperscaler-specific.Problem StatementWork collaboratively between hyperscal

3、ers and CPU suppliers to identify pain points and define clear requirements.ApproachExpansion MomentumFrequent updates are necessary,but Downtimes are painful and expensivePerformance can be impactedUpdate scheduling and coordination can be inefficientDivergent firmware update architectures induce p

4、rocess complexitiesStandardize impactless updates for processor firmware:Impactless FW UpdatesPain pointsSolutionPhase 1Phase 2Phase 3Integrating complex,multi-supplier CPUs in Hyperscale environments presents significant challenges:Lack of standards creates engineering toil and delaysChallenges deb

5、ugging workload-specific problems at scaleDebug features and tools do not scale wellSupplier-based custom solutions lead to fragmentationNumber of operational nodes(NIS)Standardized Debug&Diagnostics WorkflowsDebug:(1)Monitor,(2)Configure,(3)CollectDiagnostics:(1)Environment,(2)Tools,(3)Recipe Debug

6、,RAS&DiagnosticsPain pointsSolutionThe CPACT compliance tool ensures suppliers adhere to:oHyperscale CPU Impactless Firmware Update SpecificationoHyperscale CPU RAS,Debug&Diagnostic SpecificationWho benefits?oHyperscalersoCPU Suppliers Scope of CPACToAll x86 and non-x86 processor-based platforms oMu