↩ Accueil

Vue lecture

Intel Arc B580 Linux Graphics Driver Performance One Month After Launch

Yesterday I looked at how the Intel OpenCL GPU compute performance evolved for the Arc Graphics B580 in the one month since that first Battlemage graphics card premiered. There were nice Intel GPU compute optimizations merged over the past month to improve the experience. Here are some Linux graphics/gaming benchmarks for the Intel Arc B580 comparing the prior launch day Linux driver performance to where the Mesa performance is at now...

GCC Developers Consider Deprecating ARM64 ILP32 Support

ARM64 ILP32 is the Armv8 architecture with a 32-bit ABI rather than 64-bit -- akin to the "x32" x86 effort that never really took off on Linux. ARM64 ILP32 support never ended up making it into the mainline Linux kernel or GNU C Library but did appear within the GNU Compiler Collection. But years later and little use, GCC developers are consider deprecating ILP32 support ahead of its eventual removal...

Intel IPU6 Web Camera Support Still Poses A Challenge For Linux Laptops

Back in 2022 there were Linux kernel developers like Linux's second-in-command Greg Kroah-Hartman recommending that Intel Alder Lake laptops be avoided. This was due to the Intel web camera support in those new-at-the-time laptops yet to be properly upstreamed and relying on binary bits. Over time that Intel IPU6 MIPI camera support has seen portions of the code upstreamed into the mainline Linux kernel and distributions like Fedora taking extra steps to make them work but still in 2025 those with newer Intel laptops boasting the latest web camera technology are often facing a challenging experience...

Intel Battlemage Showing Off Nice OpenCL Gains With Newest Open-Source Compute Stack

Last month with the launch of Intel Battlemage with the Arc B580 graphics card, there was fairly nice open-source GPU compute performance but with some outliers... Today it's a pleasure to report that with the newest open-source GPU compute stack as of this past week, there are some nice Xe2 / Battlemage improvements for enhancing the performance of some OpenCL workloads and also correcting the performance of some workloads that were in poor standing on launch day.

NTSYNC Driver Ready For Enhancing Windows Gaming With Linux 6.14

Set to make the upcoming Linux 6.14 kernel cycle even more exciting is that it looks like the completed NTSYNC driver will be ready for merging. The NTSYNC driver enhances Wine / Proton (Steam Play) gaming by better matching the Windows NT synchronization primitives to allow for better gaming performance. The NTSYNC code has long been a work-in-progress but this week the revised code made it into the relevant "-next" branch ahead of Linux 6.14...

Fedora 42 Looks To Ship Optimized Executables For Different x86_64 Capabilities

Fedora Linux has already supported making use of glibc HWCAPs for allowing libraries to be built for different x86_64 micro-architecture feature levels for performance-sensitive code where it can pay off when leveraging AVX/AVX2 or other newer Intel/AMD CPU instruction set extensions. For Fedora 42 is now a proposal to extend that further to allow binary executables to also leverage glibc HWCAPs for better performance...

Intel Xe Driver Adding "RPa" Frequency Reporting With Linux 6.14

This week Intel engineers sent out a number of kernel graphics driver pull requests of new code for the upcoming Linux 6.14 cycle. In addition to the UHBR for Panther Lake and lower Alchemist GPU power use with whitelisted GPUs and fixing old Intel Haswell era graphics platforms, on Friday another (smaller) pull request was sent in for the modern Xe kernel driver...

Experimental Linux Address Space Isolation "ASI" v2 Patches: I/O Throughput Lower By 70%

Google engineers and others have been talking about Address Space Isolation "ASI" for the Linux kernel to better deal with speculative execution attacks and other CPU vulnerabilities. Last summer there were some new "request for comments" patches working on Linux Address Space Isolation and today a second iteration of those RFC patches were published. They are now out for review but they are unlikely to see much use: the I/O throughput as measured by FIO takes a 70% hit...
❌