Posts
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n00b Kernel Hacker
- Ex-Intern @ NVIDIA Korea (Security System Software) (2024.06-2024.11)
- Ex-Intern @ Panmneisa (CXL emulation stuff) (~2023.12)
- Undergraduate majoring CSE (estimated graduation: Feb. 2025)
- Working as reviewer at Linux Slab subsystem
- Born in August 6, 2000

Opinions are my own.

My interests are:
Memory Management,
Computer Architecture,
Circuit Design,
Virtualization
when @ljs is low on cat
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@Andi @krzk What a coincidence! life is so unpredictable...
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Edited 1 year ago
@vbabka @ljs @lkundrak
yeah I don't (try not to) care
It's now just an empty bottle :)
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@vbabka @ljs @lkundrak I did not insult anyone, no?
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@lkundrak @vbabka my back just started hurting after reading this
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@Andi *sending a screenshot of the picture you've sent to GM being sent to me*
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@ljs @lkundrak @vbabka oh... didn't know it's a rock band :)

just judged it only by its picture...
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@ljs @lkundrak @vbabka
what is it lol, looks like a long hair nerds club in Hogwarts?
"We don't get a haircut, by the way"
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@Andi He's such a nice guy, we have weekly kernel study group meeting together!
Had you worked with him before?
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Edited 1 year ago
@vbabka I hope no one is scared even without reading the code
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At OSS Festival last week (in Seoul)
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War and Peace
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How QR codes are made:

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Shared bicycles (not a biker gang)
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But (hopefully) the length of a development cycle is long enough to review/test all of them
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the number of slab patches in this cycle is quite larger than usual...
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HAMMER SMASHED FILESYSTEM πŸ‡ΊπŸ‡¦

patch review process finally moving on from mailing lists

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Christian Brauner 🦊🐺

Edited 1 year ago

Hey people. Last year we had the first Devroom at . And we're running the Devroom for in 2024 as well!

2024 is taking place over the weekend of the 3 & 4 February in Brussels, Belgium!

It is a wonderful event that's very close to my and a lot of people's hearts!

Join @rppt, Daniel Borkmann, and @stgraber, and myself and make this another great !

We're very excited for your submissions!

https://lists.fosdem.org/pipermail/fosdem/2023q4/003536.html

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For the 2023 ClangBuiltLinux meetup, I decided to revisit my benchmarks comparing how building LLVM with different optimizations such as LTO, PGO, and BOLT can impact how fast it can build Linux kernels:

https://github.com/ClangBuiltLinux/cbl-meetup-2023/blob/9b399fe8f3b886d549105a82068e3a441e496b46/nathan_making_llvm_faster_with_build_time_optimization_technologies.pdf

TL;DR: PGO and BOLT can give huge wins, LTO not so much.

It was pretty wild to see how much PGO made a difference, almost twice as fast in some cases... The kernel.org LLVM toolchains I provide are built with PGO and BOLT for this reason:

https://mirrors.edge.kernel.org/pub/tools/llvm/

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