Linux 6.9 kernel official version released: supports AMD P-State preferred core, optimizes Core Ultra processor performance

This site reported on May 13 that the first official version of the Linux 6.9 kernel was released, and the 6.10 version merging window is about to open.

Linux 6.9 mainly brings the following improvements:

• Support AMD P-State preferred core features

• Intel P-State EPP default value adjustment to optimize Core Ultra processor performance

• Support Intel FRED (Flexible Return and Event Delivery)

• AMD GPU Graphics driver update

• Loongson LoongArch architecture supports more kernel features

• Remove old version of NTFS driver

• Core Network Update

• KVM Virtual Machine Optimization

• Bringing a larger console to high-resolution (4K) displays Font

• Driver updates for new hardware

Notable new hardware support includes:

• Intel RAPL driver support for Lunar Lake M and Arrow Lake processors

• Clock controller support for Qualcomm Snapdragon X1E80100

• MediaTek MT7981B "Filogic 820" and MT7988A "Filogic 880" network SoC support

• Ten Chromebooks using MediaTek MT8186 processor receive mainline kernel support

# When the ##6.9-rc1 version was released, Linus pointed out:

Linux kernel 6.9 looks to be a "pretty normal" version. The timer subsystem has undergone a considerable rewrite, adding support for timer wheels per CPU core to improve timer performance, which is especially important for networking. The workqueue (workqueue) subsystem adds BH work queue support, getting rid of the old tasklet mechanism.

Linus said he now has a more powerful arm64 device from Ampere,

so there were almost as many arm64 builds last week as x86-64 and will be merged in future ones As the window continues, it's more of a "weekly test" than the previous M2 MacBook Air laptop.

I don't expect this to actually show any problems - the laptop tests never found any issues, but I feel like I'd be happier with a little more coverage.

The original text of Linus Torvalds’ email attached to this site is as follows:

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