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#amd

14 publicações14 participantes1 publicação hoje

#AMD's 3D #VCacheOptimizer Driver For Squeezing More Ryzen 9 #9950X3D Performance Review
Merged for the #Linux 6.13 kernel was the AMD 3D #VCache Optimizer driver for being able to influence the kernel's scheduling decisions on AMD processors where only a subset of CCDs have the larger 3D V-Cache.
Leveraging the AMD #3DVCache Optimizer Linux driver made for a very noticeable difference on the single-threaded workloads.
phoronix.com/review/amd-3d-vca

www.phoronix.comAMD's 3D V-Cache Optimizer Driver For Squeezing More Ryzen 9 9950X3D Performance Review

🧐 The #AMD Device Library Extra (ADLX) SDK lets your apps access the display, monitoring, & #GPU tuning of AMD systems.

v1.4 adds:

✅ New interfaces to control, including video upscaling
✅ Simplified use in a system service application

💾 Download now: gpuopen.com/adlx/?utm_source=m

AMD GPUOpenAMD Device Library eXtra (ADLX) SDKADLX is a modern library designed to access features and functionality of AMD systems such as Display, 3D graphics, Performance Monitoring, GPU Tuning, and more.

#Turbostat Utility Bumps 1024 #CPU Core Limit To 8192 Cores After #HPE Breaches It With a 1152 Core unnamed system.
We currently aren't aware of any server CPU configurations that can exceed this limit (in terms of physical cores), so this may be a custom or next-generation solution from #Intel or #AMD. The utility currently only supports #x86 processors, which seemingly rules out an Arm system from causing the issue.
phoronix.com/news/Linux-6.15-T

www.phoronix.comTurbostat Utility Bumps 1024 CPU Core Limit To 8192 Cores After HPE Breaches It With 1152 Cores

Something with the combination of AMD GPU drivers included in newer version of the 6.13.x kernel and recent versions of Mesa are causing some really bad graphical artifacting, screen flickering and other nasties. It gets worse under CPU/GPU usage, as even typing or moving the cursor worsens the effect.

The problem doesn't happen when I drop to the text console and it doesn't happen when booting into a Live CD image of Ubuntu 22.04.

I've had to revert back to kernel 6.13.7 and 24.2.4-1.fc41 packages for Mesa (most from Fedora and two from RPM Fusion).

#Linux#Mesa#AMD

I'm quite disappointed by subgroupRotate or any other subgroup shuffle instructions. For both RDNA3+ & Ada Lovelace+, I thought that these instructions would be faster than e.g. going back and forth to LDS, but they look super slow.
And not a single GLSL code using such instructions on GitHub... while they have been around for many years.

Are subgroup instructions just not worth? Not used? Abandoned?

RDNA3+ ISA manual says it is using LDS hardware (but not mem), and so?