News › performance
By Zayden R., July 16, 2026
The Ubuntu Kernel Team has alerted users of an impending performance regression in AMD GPUs, potentially reducing compute-heavy workload performance by up to 42x in the next kernel update for Ubuntu 26.04 and 24.04 LTS.
The Ubuntu Kernel Team has issued a cautionary note to users of Ubuntu 26.04 and 24.04 LTS, highlighting a significant performance regression affecting AMD GPUs in the next kernel point release. This regression, originating from an upstream issue in the Linux 7.0 series, could lead to a staggering 42x slowdown in compute-heavy tasks.
This issue is particularly impactful for users relying on AMD hardware for intensive computational work. According to the Ubuntu team, the regression has been traced back to changes in the upstream kernel, which have already been shipped by other Linux distributions that adopt newer code bases more rapidly.
While the news might be concerning, the silver lining is that the issue is recognized and being actively addressed by upstream stakeholders. As the regression is part of an upstream release, it isn't isolated to Ubuntu alone. This means that other distributions and the broader Linux community are also working to rectify it.
For sysadmins and engineers relying on AMD GPUs for high-performance tasks, this warning is crucial. It provides a heads-up to anticipate potential disruptions and plan accordingly. The Ubuntu Kernel Team's proactive communication is a reminder of the collaborative nature of open-source development, where transparency and community involvement are key.
In the meantime, users are advised to keep an eye on updates from the Ubuntu team and consider holding off on upgrades until a fix is confirmed. This is a solid example of the challenges and dynamism inherent in maintaining a leading-edge open-source operating system.
The Linux Camp teaches these topics as hands-on labs on real virtual machines, verified as you type.