Red Hat OpenShift on IBM Z and IBM LinuxONE - Performance

Find information and tips about the performance of Red Hat® OpenShift® on IBM Z® and IBM® LinuxONE.

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Unleashing the Network of Red Hat OpenShift Container Platform on z/VM and RHEL KVM for IBM Z & LinuxONE

Red Hat OpenShift Container Platform, as a highly automated hybrid cloud platform, supports both traditional and micro-service applications in the cloud. In such systems, the network is one of the critical resources, especially when performance of the overall application is critical. Having a network that efficiently and quickly exchanges data between services, external systems, and customers allows short application response times and efficient data processing.

With Multus CNI on IBM Z and IBM LinuxONE, RHOCP 4.10 supports a number of additional network plug-ins that bring along different quality attributes. This chart deck introduces the basics of these plug-ins and highlights their advantages and drawbacks. For different scenarios and conditions, learn which plug-in and further tuning can help to optimize the network performance of RHOCP on IBM Z and LinuxONE.

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Unleashing the Network of Red Hat OpenShift Container Platform on z/VM® and RHEL KVM for IBM Z & LinuxONE

Creation date
July 2022

Red Hat OpenShift Container Platform on Z & LinuxONE - Capacity Planning: Five Checkmarks You Don't Want to Miss

Capacity panning is an essential step for implementing any OpenShift on IBM Z solution to avoid possible pitfalls during the proof-of-concept or production stage. For your estimates, you must factor in resource sharing, virtualization, overcommitment, LPAR weights, entitlements, polarization, and relative shares.

This presentation explores LPAR performance concepts and walks you through z/VM and KVM virtualization best practices - always keeping a sharp focus on OpenShift on IBM Z as the solution platform. The "Five Checkmarks" address some of the most common misconceptions in OpenShift on IBM Z capacity planning.

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Red Hat OpenShift Container Platform on Z & LinuxONE - Capacity Planning: Five Checkmarks You Don't Want to Miss

Creation date
February 2022

Red Hat OpenShift Container Platform on Z - Performance, Quality & Best Practices

Red Hat OpenShift Container Platform as a highly automated hybrid cloud platform supports both traditional and micro-service applications in the cloud. Learn what OCP does to maintain a high service quality and how the quality attributes interact. This presentation examines the OCP quality attributes with a focus on performance when running on IBM Z. Also, find tips for tuning OCP on IBM Z for best performance.

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Red Hat OpenShift Container Platform on Z - Performance, Quality & Best Practices

Creation date
October 2021

Red Hat OpenShift Container Platform on Z - CPU Consumption Demystified

Learn about CPU virtualization on IBM Z, how OpenShift handles these virtualized CPUs, and about performance tips and best practices. Also, find the answers to questions like:
  • Does OpenShift distinguish IFLs from regular CPUs?
  • Why can a cluster consume IFLs if no workload is deployed?
  • Why do the OpenShift and z/VM dashboards show different utilization values?

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Red Hat OpenShift Container Platform on Z - CPU Consumption Demystified

Creation date
May 2021

Red Hat OpenShift Container Platform on Z Networking Performance

Cloud-native applications can use high-performance network connections to achieve high throughput and low latency. This presentation analyzes the performance of the network stack of Red Hat OpenShift on IBM Z in detail and uses this knowledge as a basis for performance tuning of hybrid cloud platforms.

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Red Hat OpenShift Container Platform on Z Networking Performance

Creation date
November 2020

Red Hat OpenShift on IBM Z - Performance Experiences, Hints and Tips

Red Hat OpenShift enables Hybrid Cloud solutions on the IBM Mainframe. This presentation summarizes the experiences of the Linux® on IBM Z performance team when evaluating OpenShift on IBM Z. It also provides hints and tips for improving the performance of an OpenShift cluster for typical cloud-native applications.

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Red Hat OpenShift on IBM Z - Performance Experiences, Hints and Tips

Creation date
October 2020