Hacker News: wbsun

New comment by wbsun in "OpenAI Is Preparing to File for an IPO Soon"

wbsun — Thu, 21 May 2026 15:10:02 +0000

5 trillion IPO of three companies this year! They still need real money to buy the offered stocks, I am wondering which markets will be sold in order for investors to get the cash.

Orion PDA – A pocket device to take notes and play music

wbsun — Sat, 16 May 2026 04:08:24 +0000

Article URL: https://orionpda.org/yt

Comments URL: https://news.ycombinator.com/item?id=48156733

Points: 5

# Comments: 1

New comment by wbsun in "A couple million lines of Haskell: Production engineering at Mercury"

wbsun — Mon, 04 May 2026 17:18:17 +0000

I wish people'd report metrics like "transactions per second, 99.x% availability with N secs/mins p99 latency, ..." when describing how practically useful and how effective a real-world banking/transaction system is, which further proves the practicality of the programming language.

New comment by wbsun in "A couple million lines of Haskell: Production engineering at Mercury"

wbsun — Mon, 04 May 2026 02:28:13 +0000

> We serve over 300,000 businesses. We processed $248 billion in transaction volume in 2025 on $650 million in annualized revenue

> The system we've built has worked well for years, through hypergrowth, through the SVB crisis that sent $2 billion in new deposits our way in five day.

This is a strange way to describe a transaction processing system with total amount of money it processed. The reliability or scalability is not measured as O(n) dollars. In theory, $248bln or $2bln can be done in one transaction although I know it is not the case in reality. It would be impressive to see the typical system design properties like transactions per second, latency distribution, etc.

New comment by wbsun in "Everything old is new again: memory optimization"

wbsun — Fri, 27 Mar 2026 17:49:24 +0000

It’s less about 'old vs. new' and more about the evolving trade-offs dictated by the constraints of the era. There have always been engineers trying to squeeze every last drop of performance out of the bits available to them.

New comment by wbsun in "TurboQuant: Redefining AI efficiency with extreme compression"

wbsun — Wed, 25 Mar 2026 21:38:17 +0000

The blog is new but the paper was submitted almost one year ago: https://arxiv.org/abs/2504.19874. Anyone has ideas if this is already implemented in many models (at least Gemini, I guess)? If that's the case, can I expect cheaper RAM for my computer :D

New comment by wbsun in "BYD is seeing a flood of new EV buyers"

wbsun — Fri, 20 Mar 2026 23:14:50 +0000

In SF bay area, there are always gas cars trying to show off their horsepower especially during rush hours, no matter how slow the traffic is. That noise is more annoying than tires.

New comment by wbsun in "Palantir's secret weapon isn't AI – it's Ontology. An open-source deep dive"

wbsun — Sun, 22 Feb 2026 04:26:41 +0000

> Palantir's secret weapon is the closeness and affinity to the DoD.

Is it a secret? I got an impression that it has been well known. How could you get any big number contracts without former secretaries or retired generals in your board or in your ‘consulting’ team?

New comment by wbsun in "Google Public CA is down"

wbsun — Wed, 18 Feb 2026 02:30:51 +0000

Oh I am more than happy to tell people how I took down entire Google Cloud 11 years ago. I mean, of course to the level of details Google is comfortable with to share externally :)

New comment by wbsun in "Rivian R2: Electric Mid-Size SUV"

wbsun — Wed, 11 Feb 2026 05:06:14 +0000

No, sorry, I wouldn't buy EVs from any US company any more until they are matura enough that the model production surpasses at least Tesla Model S+X since released. Their reliability just suck. I don't want to waste my life again and again in those months-long waiting of service appointments, annoying issues every where and every day, hiring Lemon law lawyers and other BS.

Data points:

- one Model X

- one R1s

- My neighbor: one Model X, one R1t

- My collegemate: one Model X

New comment by wbsun in "SectorC: A C Compiler in 512 bytes (2023)"

wbsun — Sun, 08 Feb 2026 05:28:36 +0000

Nice, now you can dd it to your boot sector and ... Wait, it is 2026, there are 1000 ways of booting and memory mapping on so-called unified ARM architecture @,@

New comment by wbsun in "Software engineers can no longer neglect their soft skills"

wbsun — Sun, 18 Jan 2026 20:48:10 +0000

These people are not going to take your job, the people who uses tools smartly while having the knowledge and experience in highly reliable distributed systems are. If human in the loop is not required any more, nobody is going to keep their job.

New comment by wbsun in "Linux Runs on Raspberry Pi RP2350's Hazard3 RISC-V Cores (2024)"

wbsun — Fri, 09 Jan 2026 23:54:16 +0000

Making 20 y/o CPU with today's process? It is cool but yeah not really a wise business decision.

New comment by wbsun in "Linux Runs on Raspberry Pi RP2350's Hazard3 RISC-V Cores (2024)"

wbsun — Fri, 09 Jan 2026 17:59:08 +0000

Oh running Linux on a MCU without MMU.

I feel there is a gap between MCU and modern CPU, and also between the software running on top of them. The missing piece is a mid-size computer with: - A processor, single or multi-core, with computing power like 20 years ago, but modern fabrication process. Maybe without MMU for simplicity. - RAM between 100MB~1GB and DDR2/3 bandwidth. - An OS designed and implemented for this type of hardware rather than tailored Linux.

I don't think you can use it for working or your daily entertainment, so I guess not a good business to attract interests.

New comment by wbsun in "100k TPS over a billion rows: the unreasonable effectiveness of SQLite"

wbsun — Wed, 03 Dec 2025 00:31:36 +0000

My experience: customers with $$$ will always believe they are very important, so important that losing a single bit is the end of world.

So you may not want to convince customers waving huge $$$ checks that their data are not that important. But instead, providing options to keep them once they realize that: their pockets are not that deep, and they are also totally ok losing some data.

New comment by wbsun in "Tell HN: Azure outage"

wbsun — Wed, 29 Oct 2025 21:32:03 +0000

Does their status page depend on something that is down already, so the page just fails static now hence no new updates?

New comment by wbsun in "ChatGPT Atlas"

wbsun — Tue, 21 Oct 2025 17:46:36 +0000

Am I the only one who doesn't want to type a lot while browsing? (I comment on HN very rarely too...).

New comment by wbsun in "I Convinced HP's Board to Buy Palm for $1.2B. I Watched Them Kill It in 49 Days"

wbsun — Fri, 13 Jun 2025 18:33:49 +0000

Killing it so quickly after buying, it doesn’t look like the board were really convinced as the author believed.

New comment by wbsun in "DeepSeek open source DeepEP – library for MoE training and Inference"

wbsun — Thu, 27 Feb 2025 05:03:31 +0000

This feels like the 80s/90s when people hacking assembly or finding undocumented instructions to squeeze CPU for performance. Until one day either the compiler will be highly optimized enough or the GPU will be so powerful that such tricks won’t make much difference anymore, like CPUs nowadays :D

New comment by wbsun in "Nvidia’s $589B DeepSeek rout"

wbsun — Tue, 28 Jan 2025 04:38:11 +0000

I don’t understand why this is not obvious to many people: tech and stock trading are totally two different things, why on earth a tech expert is expected to know trading at all? Imagining how ridiculous it would be if a computer science graduate will also automatically get a financial degree from college even though no financial class has been taken.