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Linux Kernel Patches To Use AMD INVLPGB Instruction Show Huge Speed-Up (www.phoronix.com)

submitted 2 years ago by Sunshine@lemmy.ca to c/linux@programming.dev

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[–] onlinepersona@programming.dev 33 points 2 years ago* (last edited 2 years ago) (2 children)

More surprising is that it's taken ~4 years for these Linux kernel patches to materialize with Zen 3 having first debuted in late 2020.

Reminder: Linux kernel funding is 2% of the Linux foundation's 200M$/year budget.

Anti Commercial-AI license

[–] grue@lemmy.world 34 points 2 years ago (1 children)

the Linux kernel hasn't widely made use of INVLPGB... In part because Intel engineers typically carry out much of the new x86 instruction optimizations within the Linux kernel and Intel processors do not currently support INVLPGB.

Sounds like AMD needs to fund more kernel development.

[–] Swedneck@discuss.tchncs.de 2 points 2 years ago* (last edited 2 years ago)

especially considering how they went into the server market again; like what, are they expecting people to shove a 256 thread processor into a windows server?

[–] taaz@biglemmowski.win 10 points 2 years ago (3 children)

whats the rest then?

[–] Zachariah@lemmy.world 39 points 2 years ago

$196,000,000

[–] onlinepersona@programming.dev 8 points 2 years ago

https://news.ycombinator.com/item?id=38797213

https://www.linuxfoundation.org/hubfs/Reports/2023_lf_annual_report_122123a.pdf?hsLang=en

- Cloud, Containers, & Virtualization 25%

- Networking & Edge 13%

- AI, ML, Data & Analytics 12%

- Web & Application Development 11%

- Cross-Technology 8%

- Privacy & Security 4%

- IoT & Embedded 4%

- Blockchain 4%

- DevOps, CI/CD, & Site Reliability 3%

- Open Source & Compliance Best Practices 3%

- System Administration 2%

- Linux Kernel 2%

- System Engineering 2%

- Storage 2%

- Open Hardware 1%

- Safety-Critical Systems 1%

- Visual Effects 1%

[–] sour@feddit.org 5 points 2 years ago

Without doing research, but the Linux Foundation is also the parent of the CNCF, the foundation that funds Kubernetes and many adjacent projects. I can imagine that they get a lot more money as there are probably more developers handling CNCF projects than the Linux Kernel.