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n00b Kernel Hacker
- Pre-Intern @ NVIDIA Korea (Security System Software) (2024.06 ~)
- 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
Edited 1 month ago
Implementing FAST-9: Image Corner Detection algorithm using Verilog (AI-SOC Design homework)
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Edited 1 month ago
There are a few remaining things I want to learn while I'm still an undergraduate:
Compilers, Electronic Circuit and VLSI

The latter two are tough and confusing...
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Got a new job
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OK, here's a take for you:

PDFs are not a document format. Instead, as they encapsulate an executable (postscript) and a set of resources that are accessed in a sandboxed environment, they constitute a container.

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Thorsten Leemhuis (acct. 1/4)

Announcing : Streamlining performance optimization

https://netflixtechblog.com/announcing-bpftop-streamlining-ebpf-performance-optimization-6a727c1ae2e5

"'"bpftop provides a dynamic real-time view of running eBPF programs. It displays the average execution runtime, events per second, and estimated total CPU % for each program. This tool minimizes overhead by enabling performance statistics only while it is active."'"

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Edited 3 months ago
Visiting Scholar at Purdue University, West Lafayette, Indiana State (2024.01.04 ~ 2024.02.24)
Good bye Purdue University!

It has been so intense, now suffering from jet lag and getting back to real life.
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Edited 4 months ago
Was working out today wearing this tshirt, suddenly someone asked me "You use Linux? I use Arch by the way..."
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At this point obviously I'm here to drink more
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First week at purdue
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My friend told me to play Minecraft together (It's been 4 years since last played) but I can't because Microsoft threw away my Mojang account 😠 😠

```As of December 18, 2023, the post-migration process for Mojang accounts has officially ended```
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Edited 5 months ago
Yesterday, my internship finally finished. It was fun and inspiring to look at a project (QEMU) other than Linux, and learn how PCIe/CXL/ACPI/UEFI works in general.

Now trying to do some work (a little) on CXL emulation in QEMU, though I'm not sure how far I want to pursue as my heart is still in MM.

https://lore.kernel.org/linux-cxl/20231222090051.3265307-1-42.hyeyoo@gmail.com/T
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This link captures the confusion about how to pronounce "fsck":

https://lwn.net/Articles/190223/

Here's the truth. Ted Kowalski, username frodo, may he rest in peace, was the original author, just down the hall from my office in Murray Hill, and his name for the program had a 'u' where there is now an 's'. Management made him change it for distribution, but they couldn't make him change his pronunciation.

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Interesting post from the Android Rust compiler team:

https://android-developers.googleblog.com/2023/12/faster-rust-toolchains-for-android.html

Seems to line up with my benchmarks for performing a lot of the same optimization techniques to LLVM and clang and it is cool to see the amount of savings that this translates to for CI. Reminds me that I should look at integrating my kernel.org LLVM builds into tuxmake so that we can use them with tuxsuite…

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when @ljs is low on cat
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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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the number of slab patches in this cycle is quite larger than usual...
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HAMMER SMASHED FILESYSTEM 🇺🇦

patch review process finally moving on from mailing lists

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