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Server: IBM, 'DevOps', Kubernetes, and OpenStack

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  • Big Blue levels up server sextet with POWER9 for IBM i, AIX, HANA, Linux

    IBM is bashing out a set of go-faster POWER9 servers in the face of mounting competition from Xeon SP systems.

  • Your DevOps attempt will fail without these 7 departments buying in

    When DevOps was coined by Andrew Shafer and Patrick Debois, the goal was to bring developers and operators closer to achieve customer value together. DevOps is a culture of continuous learning and improvement. While automation and tools can garner some improvements, having the right culture drives larger impacts. The sharing of knowledge and ideas resulting in cultural growth is the value creator in DevOps.

  • Kubernetes The Smart Way

    Kelsey Hightower, Developer Advocate at Google, kicked off the KubeCon + CloudNativeCon event in Austin with an opening keynote in which he demonstrated Kubernetes' ease of use with the help of his smartphone. Apart from commending the audience for making Kubernetes the boring-in-a-good-way framework it is today, Hightower also warned about how Kubernetes should not be considered the end game, but a means to an end.

    In his talk, Hightower first addressed the misconception that Kubernetes is difficult to install. He did so by installing an eight-node Kubernetes cluster in less than two minutes just by giving verbal instructions to the Kubernetes Engine assistant through his smartphone, thus proving tha Kubernetes generally gets out of the way quickly.

  • OpenStack: Open source community collaboration needed to overcome edge computing adoption barriers

    In a whitepaper co-authored by a number of open source advocates, the OpenStack Foundation makes the case for taking a teamwork approach to tackling the barriers to widespread edge computing adoption

    The open source cloud community is being urged to pull together and overcome the barriers preventing widespread adoption of edge computing practices becoming a reality.

  • Apache CloudStack 4.11 Boosts Open-Source Cloud Features

    Apache CloudStack v4.11 was officially released by the open-source Apache Software Foundation (ASF) on Feb. 12, after eight months of development.

    "This release has been driven by the people operating CloudStack clouds," Rohit Yadav, Apache CloudStack v4.11 Release Manager stated. "Along with great new features, v4.11 brings several important structural changes such as better support for systemd and Java 8, migration to embedded Jetty, and a new and optimized Debian 9 based systemvm template."

    CloudStack has been part of the ASF since April 2012, when Citrix donated the technology to the open-source foundation. Citrix had originally acquired from cloud.com in July 2011. The first official Apache CloudStack release was version 4.0 which debuted in November 2012.

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The Spectre/Meltdown Performance Impact On Linux 4.20, Decimating Benchmarks With New STIBP Overhead

As outlined yesterday, significant slowdowns with the Linux 4.20 kernel turned out to be due to the addition of the kernel-side bits for STIBP (Single Thread Indirect Branch Predictors) for cross-HyperThread Spectre Variant Two mitigation. This has incurred significant performance penalties with the STIBP support in its current state with Linux 4.20 Git and is enabled by default at least for Intel systems with up-to-date microcode. Here are some follow-up benchmarks looking at the performance hit with the Linux 4.20 development kernel as well as the overall Spectre and Meltdown mitigation impact on this latest version of the Linux kernel. Some users have said AMD also needs STIBP, but at least with Linux 4.20 Git and the AMD systems I have tested with their up-to-date BIOS/microcode, that hasn't appeared to be the case. Most of the AMD STIBP references date back to January when Spectre/Meltdown first came to light. We'll see in the week ahead if there is any comment from AMD but at this time seems to be affecting up-to-date Intel systems with the Linux 4.20 kernel. Read more

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