Hacker News: moggi

New comment by moggi in "Can AI design circuit boards yet?"

moggi — Sat, 05 Sep 2026 07:47:44 +0000

I have had good success with Claude Code combined with https://github.com/mixelpixx/Konnect. I still need to do routing manually but it is quite useful for reviews of the design and even of the final PCB.

New comment by moggi in "Ask HN: How can I learn about performance optimization?"

moggi — Sun, 03 Mar 2024 05:52:28 +0000

If you want to learn how to understand the performance of the whole system I can recommend Brendan Gregg's Systems Performance: Enterprise and the Cloud (https://www.brendangregg.com/blog/2020-07-15/systems-perform...). It is a good book that teaches a lot of basics and techniques and gives a good understanding of the impact different system components can have on performance.

New comment by moggi in "Nvidia's "Grace" Arm CPU holds its own against x86 for HPC"

moggi — Thu, 08 Feb 2024 07:39:39 +0000

A really good presentation showing why the Xeon Max can't reach full HBM bandwidth: https://www.ixpug.org/images/docs/ISC23/McCalpin_SPR_BW_limi...

THC can transfer to milk when hemp is fed to dairy cows

moggi — Wed, 16 Nov 2022 12:36:05 +0000

Article URL: https://www.nature.com/articles/s43016-022-00623-7

Comments URL: https://news.ycombinator.com/item?id=33622060

Points: 35

# Comments: 34

Chinese GPU claiming to be faster than Nvidia A100

moggi — Tue, 23 Aug 2022 11:09:43 +0000

Article URL: https://wccftech.com/birentech-china-most-powerful-gpu-biren-br100-architecture-disclosed-2-8x-faster-than-nvidia-ampere/

Comments URL: https://news.ycombinator.com/item?id=32563074

Points: 5

# Comments: 0

New comment by moggi in "Australian activist can't use encrypted apps, must let police access phone"

moggi — Sun, 31 Jul 2022 23:54:53 +0000

Even in the US the case law around self-incrimination due to forced password disclosure does not seem to be settled. There have been multiple cases were judges have considered passwords foregone conclusions, e.g. [1]

[1] https://www.reuters.com/business/legal/us-supreme-court-nixe...

Binary bisection with Git as part of LibreOffice QA

moggi — Sat, 30 Jul 2022 01:45:54 +0000

Article URL: https://wiki.documentfoundation.org/QA/Bibisect

Comments URL: https://news.ycombinator.com/item?id=32283591

Points: 1

# Comments: 0

New comment by moggi in "Ask HN: Is it worth it to learn C to better understand Python?"

moggi — Sun, 30 Jan 2022 19:30:30 +0000

I can recommend https://realpython.com/products/cpython-internals-book/ as a decent initial documentation of cpython. I have a copy of this book at my desk for the few cases when I need to debug GIL or memory allocator related issues in cpython.

Split of LibreOffice Online from the Document Foundation

moggi — Thu, 01 Oct 2020 15:38:32 +0000

Article URL: https://www.mail-archive.com/board-discuss@documentfoundation.org/msg04727.html

Comments URL: https://news.ycombinator.com/item?id=24652148

Points: 2

# Comments: 0

New comment by moggi in "Ask HN: What's the best resource for learning modern x64 assembly?"

moggi — Sun, 09 Feb 2020 05:37:19 +0000

Especially if you need x64 assembly for performance optimization or during profiling a combination of godbolt (https://godbolt.org/) and Agner Fog's incredible PDFs at https://agner.org/optimize/ (especially parts 2, 3 and 4) are helpful.

The other useful step has been to write C functions and compile the code with a good compiler (good experiences with Intel, gcc and llvm) first at -O0 and later at -O2 or -O3 to understand how high level concepts can be translated to assembly.

This requires to have at least a basic understanding of registers and basic assembly concepts but at least has helped me apply the concepts to real code.

New comment by moggi in "How Germany is able to run the world’s second largest export economy"

moggi — Tue, 21 Jan 2020 15:15:50 +0000

Interesting choice to use 1993 as the start for the comparison of Germany's trade surplus: https://tradingeconomics.com/germany/balance-of-trade

New comment by moggi in "x86 Assembly Guide (2018)"

moggi — Sat, 06 Apr 2019 17:46:26 +0000

Also the awesome pdfs by Agner Fog that everyone doing x86-64 programming should read: https://agner.org/optimize/

Performance benchmark on mdds R-tree

moggi — Sat, 16 Feb 2019 04:31:13 +0000

Article URL: http://kohei.us/2019/02/15/performance-benchmark-on-mdds-rtree/

Comments URL: https://news.ycombinator.com/item?id=19177082

Points: 3

# Comments: 0

Statistics about automated testing in LibreOffice

moggi — Tue, 20 Nov 2018 21:35:11 +0000

Article URL: https://mmohrhard.wordpress.com/2018/11/20/statistics-about-automated-testing-in-libreoffice/

Comments URL: https://news.ycombinator.com/item?id=18497981

Points: 1

# Comments: 0