Bug 1828134

Summary:	[HCI-DPDK] Configuration of isolcous (kernelargs) and IsolCpusList
Product:	Red Hat OpenStack	Reporter:	Karthik Sundaravel <ksundara>
Component:	documentation	Assignee:	mgeary <mgeary>
Status:	CLOSED CURRENTRELEASE	QA Contact:	RHOS Documentation Team <rhos-docs>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	13.0 (Queens)	CC:	cfontain, igallagh, kfida, lmarsh, mgeary
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Last Closed:	2020-08-06 09:47:52 UTC	Type:	Bug
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Description Karthik Sundaravel 2020-04-27 06:31:49 UTC

Investigation BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1817861

For HCI-DPDK deployment the below changes are recommended and needs to be updated in document

Before 

KernelArgs: default_hugepagesz=1GB hugepagesz=1G hugepages=<Number of HugePages> intel_iommu=on iommu=pt isolcpus=<all cpu’s excluding OvsDpdkCoreList>
IsolCpusList: <List of all CPU’s excluding OvsDpdkCoreList >
OvsPmdCoreList +NovaVcpuPinSet

Now
KernelArgs: default_hugepagesz=1GB hugepagesz=1G hugepages=<Number of HugePages> intel_iommu=on iommu=pt isolcpus=<OvsPmdCoreList + NovaVcpuPinSet >
IsolCpusList: < OvsPmdCoreList +NovaVcpuPinSet >