Hyeonggon Yoo
Posts
469Following
90Followers
94- 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
@vbabka @ljs
JD: Sr. Stealing Technician
Are you a seasoned master of stealth and subterfuge? Do you thrive on high-risk challenges and the thrill of the heist? We have an exciting opportunity for an experienced Senior Stealing Technician to lead our elite team of technical professionals.
What you will bring:
* Plan and execute complex theft operations with precision.
* Recruit and manage a skilled team of thieves.
Who you are:
* Minimum 3 years of non-internship experience in successful heists.
* Strong leadership and problem-solving skills.
Benefits:
* Competitive compensation in untraceable currencies.
* Flexible work hours and travel opportunities.
Don't hesitate to apply!
p.s. ChatGPT helped writing this job description
JD: Sr. Stealing Technician
Are you a seasoned master of stealth and subterfuge? Do you thrive on high-risk challenges and the thrill of the heist? We have an exciting opportunity for an experienced Senior Stealing Technician to lead our elite team of technical professionals.
What you will bring:
* Plan and execute complex theft operations with precision.
* Recruit and manage a skilled team of thieves.
Who you are:
* Minimum 3 years of non-internship experience in successful heists.
* Strong leadership and problem-solving skills.
Benefits:
* Competitive compensation in untraceable currencies.
* Flexible work hours and travel opportunities.
Don't hesitate to apply!
p.s. ChatGPT helped writing this job description
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Hyeonggon Yoo
hyeyoo
Edited 7 months 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...
Compilers, Electronic Circuit and VLSI
The latter two are tough and confusing...
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Hyeonggon Yoo
repeated
repeated
Fi, infosec-aspected 🏳️⚧️
munin@infosec.exchangeOK, 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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Hyeonggon Yoo
repeated
repeated
Thorsten Leemhuis (acct. 1/4)
kernellogger@fosstodon.orgAnnouncing #bpftop: Streamlining #eBPF performance optimization
"'"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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This is what I've been developing at Purdue: detecting where the last reference to a memory was lost, aiming to help fix memory leaks. It's written on top of the LLVM compiler infrastructure.
It's still in development as an out-of-tree project and needs some more work :)
However, I believe this could help in resolving memory leaks.
It's still in development as an out-of-tree project and needs some more work :)
However, I believe this could help in resolving memory leaks.
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Hyeonggon Yoo
hyeyoo
Edited 8 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.
Good bye Purdue University!
It has been so intense, now suffering from jet lag and getting back to real life.
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Hyeonggon Yoo
hyeyoo
Edited 9 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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@ptesarik @lkundrak @ljs @sj @vbabka @Aissen
I got a reply from Lenovo HW team. For a reason that I don't understand, he said a part of 32GB DIMM belongs to a dual channel with 8GB DIMM and the remaining part belongs to a single channel thus a separate NUMA node.
```
[...]
the summary is that the performance for the two nodes is different. Node 0 is dual channel interleaved whereas Node 1 is single channel - so this is working as designed.
[...]
```
https://forums.lenovo.com/t5/ThinkBook-Laptops/BIOS-problem-Bogus-NUMA-configuration-on-thinkbook/m-p/5260517?page=1#6212698
I got a reply from Lenovo HW team. For a reason that I don't understand, he said a part of 32GB DIMM belongs to a dual channel with 8GB DIMM and the remaining part belongs to a single channel thus a separate NUMA node.
```
[...]
the summary is that the performance for the two nodes is different. Node 0 is dual channel interleaved whereas Node 1 is single channel - so this is working as designed.
[...]
```
https://forums.lenovo.com/t5/ThinkBook-Laptops/BIOS-problem-Bogus-NUMA-configuration-on-thinkbook/m-p/5260517?page=1#6212698
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