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AMD + IBM Team Up To Tackle Confidential Computing

AMD and IBM are this morning announcing a multi-year, joint development agreement focused on "building upon open-source software, open standards, and open system architectures to drive Confidential Computing in the cloud and support a broad range of accelerators across high-performance computing (HPC), and enterprise critical capabilities such as virtualization and encryption."

13 Hours Ago - AMD - Confidential Computing - 20 Comments

10 November

exFAT File-System Performance On Linux 5.9

Now that the Samsung-contributed open-source exFAT file-system kernel driver has matured quite nicely since being merged earlier this year as a replacement to the short-lived staging exFAT driver based on an older code-base, here is a look at how exFAT is performing on the Linux 5.9 kernel compared to EXT4 and F2FS as well as the existing exFAT FUSE file-system implementation.

10 November 01:05 PM EST - Software - 10 Comments
Compute Express Link 2.0 Specification Published

Just a year after the Compute Express Link 1.0 and 1.1 interconnect specifications were published, CXL 2.0 is being announced this morning for this high-speed, data center minded specification built atop the PCI Express interface.

10 November 09:09 AM EST - Standards - CXL 2.0 - 4 Comments
Qt 6.0 Beta 4 Released

For those on the Qt 5.12 LTS series the Qt 5.12.10 point release is out today with 30 new bug fixes. But for those looking ahead to Qt 6 also out today is Qt 6.0 Beta 4.

10 November 08:38 AM EST - Qt - Qt 6 - 8 Comments
AMD Renoir Running Smooth On Linux 5.10

After last week sharing some Intel Tiger Lake benchmarks on Linux 5.10, the tables have turned and here are some similar tests when running Linux 5.10 on an AMD Ryzen 4000 series "Renoir" notebook.

10 November 06:38 AM EST - AMD - AMD Renoir + Linux 5.10 - 6 Comments
Oracle Proposing Change To Linux's KPTI Meltdown Mitigation

A proposal and set of patches have been sent out around the Linux kernel's Page Table Isolation (PTI/KPTI) implementation to defer switching from the user page-table to kernel page-table until later in the kernel entry sequence. There are possible performance benefits and code improvements that would stem from this change.

10 November 06:13 AM EST - Linux Security - Kernel Page Table Isolation - 9 Comments

9 November

Optimized Compiler Builds Are Well Worth It For Intel Tiger Lake

Making use of "-march=tigerlake" for building optimized binaries catering to Intel's latest-generation processors is well worth it on the likes of GCC 11. Out of the new instruction set extensions on Tiger Lake is more uplift than we have seen out of recent Intel generations and comparing the different "-march=" targets shows significant performance benefits if you don't mind compiling your own software from source.

9 November 12:50 PM EST - Software - 32 Comments
Arm Neoverse V1 Support Added To LLVM Clang 12 Compiler

Announced by Arm back in September was the Neoverse V1 "Zeus" platform with 50%+ performance uplift over the Neoverse N1. Neoverse V1 also supports Scalable Vector Extensions (SVE) and other features in catering the platform for machine learning, cloud, HPC, and similar use-cases.

9 November 08:49 AM EST - Arm - neoverse-v1 - Add A Comment

8 November

Intel "coIOMMU" Can Help With Performance For VMs When Using Direct I/O Access

Currently when directly assigning I/O devices to virtual machines the guest memory needs to be statically pinned unless using a vIOMMU setup in which case it does not but there are performance implications there as well. Intel engineers though have been working on a virtual IOMMU implementation with DMA buffer tracking to overcome these limitations.

8 November 09:39 AM EST - Intel - coIOMMU - 9 Comments

7 November

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