GNOME Sushi fans, rejoice: the spacebar preview feature is being fixed in Ubuntu 26.04. If you’re not familiar with it, GNOME Sushi is a file preview tool similar to Quick Look on macOS. Select a file in Nautilus, press space and a floating preview window appears. It works with images, video and audio files, PDFs, plain text files and more. GNOME’s Sushi isn’t preinstalled in Ubuntu but many users install it themselves as it makes it easier to find specific files when rooting through folders filled with samey-seeming documents, audio files and video clip. —Well, except it doesn’t (or rather, […]
The kernel's page cache is charged with maintaining pages (or, more correctly, folios) containing copies of data from files in the filesystem; its performance has a big effect on the performance of the system as a whole. One of the key decisions the kernel must make is when to evict folios from the page cache. At the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, Tal Zussman ran a memory-management-track session on how the page cache could be better customized for specific workloads. It will not be much of a spoiler to say that it involves BPF.
A major page fault occurs when a process attempts to access a page that is not currently present in RAM; satisfying such faults usually involves I/O, and can thus take some time. When many threads sharing an address space are generating page faults, the result can be significant lock contention while that I/O takes place. During the memory-management track at the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, Barry Song led a session to try, yet again, to find an enduring solution to this problem.
Released earlier this month was the OpenCL 3.1 specification with a focus on enhancing AI and HPC workloads for this long-time Khronos specification. Out today is OpenCL 3.1.1 as a point release with an emphasis on addressing a possible performance regression of OpenCL 3.1...
Last month with the new AMD Zen 5 "Dual Edition" 3D V-Cache CPU, the AMD Ryzen 9 9950X3D2 Dual Edition showed great performance on Linux across a range of workloads. Curious if the operating system was playing into the greater benefit of Ryzen 9 9950X3D2 versus just the workloads tested, this article is looking at both the AMD Ryzen 9 9950X3D and Ryzen 9 9950X3D2 on Microsoft Windows 11 and Ubuntu 26.04 LTS Linux across a range of native benchmarks.
For those with a new Core Ultra Series 3 "Panther Lake" laptop from HP or considering one of these new systems, the Intel ISH firmware has now been upstreamed to linux-firmware.git for enhancing the out-of-the-box support...
A new proposal volleyed today among LLVM developers is for Multi-Thread Parallel Compilation "MTPC" for the ThinLTO link-time optimization code. This is great news for today's high core count CPUs when looking to compile very large LLVM modules...
A set of 42 patches were posted on Thursday for the AMDGPU kernel driver and associated AMDKFD compute driver code for enabling pipe reset capabilities for compute workloads...
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