LLVM Clang 12 Merges Support For x86_64 Microarchitecture Levels

In an effort to better cater towards newer and common x86_64 instruction set extensions, open-source toolchain developers are moving ahead with the work on x86_64 micro-architecture feature levels for being able to target a handful of different "levels" beyond the base x86_64 instruction set.

5 Minutes Ago - LLVM - x86_64 Levels - Add A Comment

21 October

Linux Developers Discussing Possible Kernel Driver For Intel CPU Undervolting

While the Intel Extreme Tuning Utility (XTU) on Windows allows for undervolting laptop processors, currently on Linux there isn't any Intel-endorsed way for undervolting your CPU should you be interested in better thermal/power efficiency and other factors. But a hypothetical Linux kernel driver could be coming for filling such void.

21 October 02:00 PM EDT - Intel - Intel CPU Undervolting - 20 Comments
Windows 10 vs. Ubuntu 20.10 Performance With Intel Tiger Lake, AMD Renoir

Stemming from our initial Intel Core i7 1165G7 "Tiger Lake" benchmarks on the Dell XPS 13 9310 last week and then also discovering better single-threaded performance on Ubuntu 20.10, one of the pressing questions was whether this is expected performance on Linux or if it's coming up short of Microsoft Windows for this first tier-one notebook to market with Intel Tiger Lake. So following those earlier tests I proceeded to do a Windows 10 Pro with all available updates comparison on Ubuntu 20.10 with the i7-1165G7. For added context, the same software stack and tests were repeated on an AMD Ryzen "Renoir" notebook.

21 October 10:30 AM EDT - Operating Systems - 18 Comments
Facebook Is Looking To Upstream Their BOLT Binary Performance Optimizer Into LLVM

Facebook's BOLT is a multi-year project focused on speeding up the performance of binaries. This open-source project initially focused on being able to better optimize Linux x86_64/ARM64 ELF binaries as a post-link optimizer. BOLT has been seeing much success with even Google using it now for better performance and now there is work to upstream it as part of the LLVM project.

21 October 07:00 AM EDT - LLVM - BOLT Optimizer - 1 Comment
Intel OpenGL/Vulkan Linux Drivers Strike Another Optimization For Tiger Lake

It was just on Monday that Intel's talented open-source developers merged a hefty Tiger Lake graphics optimization into the Mesa 20.3 code that for some games/software can be around ~11% faster thanks to greater caching. Just a day later another optimization has arrived for helping these latest-generation Intel graphics.

21 October 01:45 AM EDT - Intel - Gen12 / Tiger Lake - Add A Comment
NVIDIA Ships Vulkan Driver Beta With Fragment Shading Rate Control

This week's Vulkan 1.2.158 spec release brought the fragment shading rate extension to control the rate at which fragments are shaded on a per-draw, per-primitive, or per-region basis. This can be useful similar to OpenGL and Direct3D support for helping to allow different, less important areas of the screen be shaded less than areas requiring greater detail/focus.

21 October 12:07 AM EDT - NVIDIA - NVIDIA 455.26.02 - 3 Comments

20 October

A Quick Look At Ubuntu 20.04 LTS vs. 20.10 With The Core i9 10900K

With Ubuntu 20.10 due for release this week I have begun testing near-final Ubuntu 20.10 builds on many more systems in the lab. Larger than our normal distribution/OS comparisons, here is the culmination of running hundreds of benchmarks (366 tests to be exact) under both Ubuntu 20.04 LTS with all available updates and then again on the Ubuntu 20.10 development state while testing on Intel Comet Lake.

20 October 06:13 PM EDT - Software - 3 Comments
NIR-To-TGSI Support Added To Mesa 20.3

Mesa 20.3 has merged a long work-in-progress patch series providing support for going from the modern NIR intermediate representation to TGSI as the conventional Gallium3D IR.

20 October 03:17 PM EDT - Mesa - NIR-To-TGSI - 4 Comments

19 October

Intel Lands A Hefty Tiger Lake Graphics Optimization

From my Tiger Lake testing so far with the Core i7 1165G7, the "Gen12" Xe Graphics have been quite compelling with a very nice upgrade over Gen11 and especially obvious win over the very common still Gen9 graphics. With Mesa 20.3, another measurable performance is on the way for the Intel Vulkan driver with Tiger Lake.

19 October 08:35 PM EDT - Intel - Tiger Lake - 3 Comments
Further Exploring The Intel Tiger Lake Core i7-1165G7 Performance On Ubuntu Linux

Last week I published initial benchmarks of the Intel Core i7 1165G7 "Tiger Lake" performance on Linux with the Dell XPS 13 9310 Developer Edition laptop. Of most surprise from those preliminary Linux figures were finding that for some single-threaded workloads the performance was actually worse than the previous generation Ice Lake. Since then I've been running more tests around the clock with some interesting discoveries to note today. It is possible to enhance the single-threaded performance so it's performing better than Ice Lake as would be expected, but comes with lowering the multi-threaded performance compared to the results shared last week.

19 October 10:17 AM EDT - Processors - 26 Comments

18 October

Linux 5.10 Continues Maturing The USB4 Support

Earlier this year Linux 5.6 brought initial USB4 support by leveraging Intel's existing Thunderbolt kernel support for which the updated USB specification is based. Succeeding kernels have continued maturing this USB4 implementation and that has continued with Linux 5.10.

18 October 08:24 AM EDT - Intel - Linux 5.10 + USB4 - Add A Comment
New NTFS Linux Driver Spun A Ninth Time, Still Under Review

Back in August was the surprise that Paragon Software is looking to mainline their NTFS read-write driver in the mainline Linux kernel after years of offering it as a commercial driver for those needing reliable support for this Microsoft file-system on Linux. Two months later they are now up to their ninth revision of this driver in their pursuit of mainline inclusion.

18 October 12:03 AM EDT - Linux Storage - NTFS3 v9 - 39 Comments

Past 30 Days Of News | Articles & Reviews | News Archives | RSS Feed