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Aujourd’hui — 29 octobre 2024Phoronix
Hier — 28 octobre 2024Phoronix

Intel Core Ultra 9 285K Linux Memory DDR5 Performance Testing

28 octobre 2024 à 19:28
Following last week's launch testing of the Intel Core Ultra 9 285K and Core Ultra 5 245K Arrow Lake desktop processors, the next area I've been exploring deeper has been the DDR5 memory performance including with CUDIMMs. Here's a closer look at the Core Ultra 9 285K performance under Linux while testing several different sets of memory and running Ubuntu 24.10.
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PCIe TPH Coming With Linux 6.13 To Further Enhance 5th Gen AMD EPYC Performance

28 octobre 2024 à 17:56
Going back to earlier in the year AMD Linux engineers have been prepping the kernel for PCI Express TLP Processing Hints (TPH) support that allows for hints that can be injected to improve latency and lowering traffic congestion when there are several possible cache locations on the server with the TPH noting the optimal location of a Transaction Layer Packet (TLP). This PCIe TPH support is set to be merged upstream with the forthcoming Linux 6.13 cycle...
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Sched_ext Scheduler Idle Selection Being Extended For LLC & NUMA Awareness

28 octobre 2024 à 15:12
While the sched_ext extensible scheduler code was merged for Linux 6.12, work on sched_ext itself it is not over. New patches this weekend continue working on NUMA awareness for it with its default idle selection policy while similar work on CPU last level cache (LLC) awareness are slated for the upcoming Linux 6.13 cycle...
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Intel Preps Linux Driver For Upgraded Display Capabilities With New Hardware

28 octobre 2024 à 13:28
While the Linux 6.12 kernel enables Intel Xe2 Battlemage discrete GPU support out-of-the-box as a sign of its maturing state, there are a number of patches for the open-source Battlemage driver support that are ongoing. One of the areas seeing some patches recently are around enhancing the display features with Battlemage's upgraded capabilities. Plus there's ongoing work around next-gen Xe3 graphics too...
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À partir d’avant-hierPhoronix

Linux 6.12-rc5 Disabling Intel's Linear Address Masking "LAM" Due To Security Concerns

27 octobre 2024 à 12:30
Intel merged Linear Address Masking into the Linux kernel last year as a means of allowing user-space to store metadata within some bits of pointers without masking it out before use. LAM can be useful for virtual machines, sanitizers / profiling / memory tagging, and other uses. While the brand new Intel Arrow Lake and Lunar Lake CPUs support LAM, the Linux kernel is now disabling LAM out of security concerns...
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Intel's PCIe Cooling Driver Ready For Linux 6.13 To Reduce Bandwidth When Running Hot

27 octobre 2024 à 12:01
For the past year Intel software engineers have been developing a PCIe cooling driver to reduce the PCIe link speed to cope with thermal issues. In the future with PCI Express 6.0 this driver may be further adapted to also reduce the PCIe link width when encountering thermal problems. This cooling driver is now ready for merging with the upcoming Linux 6.13 kernel...
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ASUS WMI Fix Submitted For Linux 6.12-rc5 To Handle Lunar Lake Performance Issue

26 octobre 2024 à 15:21
Submitted today were a set of x86 platform driver fixes for merging ahead of the Linux 6.12-rc5 release due out on Sunday. For the most part mostly mundane fixes. But notable is an ASUS WMI fix to address the Core Ultra 200V "Lunar Lake" performance issue I've pointed out now in several articles...
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