Kernel

Linux Kernel 6.9 is Released: This is What's New for Compute Express Link (CXL)

Linux Kernel 6.9 is Released: This is What's New for Compute Express Link (CXL)

The Linux Kernel 6.9 release brings several improvements and additions related to Compute Express Link (CXL) technology.

Read More
Linux Kernel CXL Feature Tracker

Linux Kernel CXL Feature Tracker

I’m always watching the Linux Kernel for new and exciting features that are merged for Compute Express Link (CXL).

Read More
Using Linux Kernel Tiering with Compute Express Link (CXL) Memory

Using Linux Kernel Tiering with Compute Express Link (CXL) Memory

In this blog post, we will walk through the process of enabling the Linux Kernel Transparent Page Placement (TPP) feature with CXL memory mapped as NUMA nodes using the system-ram namespace.

Read More

How To Install a Mainline Linux Kernel in Ubuntu

By default, Ubuntu systems run with the Ubuntu kernels provided by the Ubuntu repositories.

Read More
Using Linux Kernel Memory Tiering

Using Linux Kernel Memory Tiering

In this post, I’ll discuss what memory tiering is, why we need it, and how to use the memory tiering feature available in the mainline v5.

Read More
How To Emulate CXL Devices using KVM and QEMU

How To Emulate CXL Devices using KVM and QEMU

What is CXL? Compute Express Link (CXL) is an open standard for high-speed central processing unit-to-device and CPU-to-memory connections, designed for high-performance data center computers.

Read More
How to Boot Linux from Intel® Optane™  Persistent Memory

How to Boot Linux from Intel® Optane™ Persistent Memory

Introduction In this article, I will demonstrate how to configure a system with Intel Optane Persistent Memory (PMem) and use part of the PMem as a boot device.

Read More
How to Boot Linux from Intel® Optane™  Persistent Memory

How to Boot Linux from Intel® Optane™ Persistent Memory

Introduction In this article, I will demonstrate how to configure a system with Intel Optane Persistent Memory (PMem) and use part of the PMem as a boot device.

Read More
How to build an upstream Fedora Kernel from source

How to build an upstream Fedora Kernel from source

I typically keep my Fedora system current, updating it once every week or two.

Read More
Linux Device Mapper WriteCache (dm-writecache) performance improvements in Linux Kernel 5.8

Linux Device Mapper WriteCache (dm-writecache) performance improvements in Linux Kernel 5.8

The Linux ‘dm-writecache’ target allows for writeback caching of newly written data to an SSD or NVMe using persistent memory will achieve much better performance in Linux Kernel 5.

Read More

Intel Optane Persistent Memory Modules report "Non-functional" state in ipmctl

Issue Executing ipmctl show-dimm to get device information shows the persistent memory modules in a ‘Non-functional’ health state, eg:

Read More
How To Verify Linux Kernel Support for Persistent Memory

How To Verify Linux Kernel Support for Persistent Memory

Linux Kernel support for persistent memory was first delivered in version 4.

Read More
How To Extend Volatile System Memory (RAM) using Persistent Memory on Linux

How To Extend Volatile System Memory (RAM) using Persistent Memory on Linux

Intel(R) Optane(TM) Persistent Memory delivers a unique combination of affordable large capacity and support for data persistence.

Read More