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This article provides a brief set of tips and best practices for improving performance of OpenShift Container Platform (OCP) on Power10 systems.
Network
• For pod network, use private network based on native SRIOV if LPM not required, otherwise use VNIC
• For application that require high bandwidth or low latency, consider using the SR-IOV Network Operator to assign VF directly to a pod
• For services in need of a low timeout, configure the default timeouts for an existing route
• Adjust the desired MTU size OCP's cluster network
• For pod network, use private network based on native SRIOV if LPM not required, otherwise use VNIC
• For application that require high bandwidth or low latency, consider using the SR-IOV Network Operator to assign VF directly to a pod
• For services in need of a low timeout, configure the default timeouts for an existing route
• Adjust the desired MTU size OCP's cluster network
Operating system
• Consider increasing the u-limits within the CoreOS Post-install changes
• Refer to the minimum OCP installation requirements for Power platform OCP4.8 installation on Power
Deployment
• When deploying applications , note that one vCPU is equivalent to one physical core when simultaneous multithreading (SMT), or hyperthreading, is not
enabled. When SMT enabled, a VCPU is equivalent to a hardware thread.
• Refer to minimum sizing guidelines for workers & master nodes Minimum resource requirements
• Allocate a separate dedicated storage to the built-in container image registry
• Use the following sizing guidelines for OCP’s main directories main directories that OpenShift Container Platform components write data to
• When deploying applications , note that one vCPU is equivalent to one physical core when simultaneous multithreading (SMT), or hyperthreading, is not
enabled. When SMT enabled, a VCPU is equivalent to a hardware thread.
• Refer to minimum sizing guidelines for workers & master nodes Minimum resource requirements
• Allocate a separate dedicated storage to the built-in container image registry
• Use the following sizing guidelines for OCP’s main directories main directories that OpenShift Container Platform components write data to
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Document Information
Modified date:
04 June 2024
UID
ibm17155166