New Release: Linux Kernel 5.5


Linux kernel 5.5 (available here) has been released. Here are the highlights from a Linux on Z perspective:
  • OSA Express/qeth Device Driver: Improve invalid frame handlingPreviously, a single invalid frame in a receive buffer would trigger discarding the entire buffer. With this addition, we are able to sort out and process valid frames within receive buffers containing invalid ones
  • HiperSockets/qeth Device Driver: Support Multi-WriteSend multiple frames for the same target in one go. This reduces CPU utilization, speeds up the data transfer, and reduces receiver-side interrupts.

Webinar: Linux on IBM Z - What's New

Abstract
The session will start with a brief overview of available Linux distributions on the IBM Z platform, before existing and upcoming features that are currently under development by IBM and the open source community are covered. The presentation will address both IBM Z-specific features and platform-independent developments which are relevant to Linux on IBM Z. Further topics include Linux features in support of IBM z15 (including performance benchmarks), the KVM hypervisor, as well as container support.

Speaker
Stefan Raspl, Linux on IBM Z & Virtualization Development, IBM Germany.

Registration
Register here. You can check the system requirements here.
After registering, you will receive a confirmation email containing information about joining the webinar.

Replay & Archive
All sessions are recorded. For the archive as well as a replay and handout of this session and all previous webcasts see here.

New Release: qclib v2.0.1

qclib v2.0.1 is now available for download here (MD5: 0a782ecb994f3f099bb82ff283b57b69).
This is a bugfix release, and we recommend users of v2.0 to upgrade.

For more information see the included README.

New Release: SLES 12 SP5 on IBM Z

SLES 12 SP5 is out! See this section in the release notes for an in-depth look on IBM Z support, and this blog post for z15 support in particular.

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