Intel Sends Out Revised Linux Patches For Directed Package Thermal Interrupts
Intel has released a second iteration of Linux patches for Directed Package Thermal Interrupts, a feature for recent Intel CPUs. This update allows thermal interrupts to be directed to a specific CPU core, reducing resource contention and avoiding waking idle cores. The patches also include bug fixes and code clean-ups, with potential support for upcoming Intel processors.
- ▪The initial patch series for Directed Package Thermal Interrupts was released in March.
- ▪The new patches allow thermal interrupts to be directed to a single CPU core instead of all cores.
- ▪Support for this feature is expected in newer Intel CPUs, including Nova Lake and Diamond Rapids.
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| Original publisher | Phoronix |
| Canonical URL | https://www.phoronix.com/news/Intel-Directed-Pkg-Therm-Inter |
| Publication time | Thu, 28 May 2026 20:51:33 -0400 |
| Retrieval time | 2026-05-29T00:59:38.922Z |
| Last seen | 2026-05-29T00:59:38.922Z |
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| Cluster | CYQEhYU_uPJP · 2 stories |
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| Publisher visit | Yes — open original |
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Intel Sends Out Revised Linux Patches For Directed Package Thermal Interrupts Written by Michael Larabel in Intel on 28 May 2026 at 08:51 PM EDT. Add A Comment Back in March was an initial patch series out of Intel for Linux support for Directed Package Thermal Interrupts as a new feature of recent Intel CPUs. There wasn't much to report over the past three months on this work but today a second iteration of the patches emerged on the Linux kernel mailing list. As opposed to the current behavior of package-level thermal interrupts being broadcast to all CPU cores, Directed Package Thermal Interrupts allow for broadcasting to just one CPU core tasked for handling the package-wide events.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Phoronix.