Hacker News: NkVczPkybiXICG

New comment by NkVczPkybiXICG in "Wi-Wi is wireless time sync at 1 nanosecond"

NkVczPkybiXICG — Fri, 22 May 2026 22:53:50 +0000

Why does the title say 1ns but the body of the article says 30ns (with hopes to eventually get it down to 5)?

New comment by NkVczPkybiXICG in "The fastest Linux timestamps"

NkVczPkybiXICG — Mon, 27 Apr 2026 16:33:22 +0000

Hint for more wins if you want it: which numa node is the vvar page on? Which numa node are you on?

New comment by NkVczPkybiXICG in "When Small Parquet Files Become a Big Problem (and How I Wrote a Compactor)"

NkVczPkybiXICG — Tue, 07 Apr 2026 17:35:14 +0000

In what way, exactly, was the gzip compression “clean”?

New comment by NkVczPkybiXICG in "The Shape of Inequalities"

NkVczPkybiXICG — Fri, 20 Mar 2026 23:31:31 +0000

I was confused by this because pi is not between 1 and sqrt(1/2). But I found https://www.cs.miami.edu/home/burt/manuscripts/gaussagm/agma... and it clarifies that this AGM is used in the course of approximating pi not that it’s sufficient on its own to do so.

New comment by NkVczPkybiXICG in "Fatbikes are wreaking havoc in Sydney's wealthy beach suburbs"

NkVczPkybiXICG — Sun, 08 Mar 2026 09:14:05 +0000

55kph is about how fast Remco Evenepoel just did a flat 12km time trial in the UAE tour, to win it. I think you’re being a touch overconfident if you think you can hold that for an hour.

New comment by NkVczPkybiXICG in "Intel Underestimates Error Bounds by 1.3 quintillion (2014)"

NkVczPkybiXICG — Sun, 18 Jan 2026 14:49:34 +0000

You’re aren’t x, you’re just y llm slop

New comment by NkVczPkybiXICG in "Tenstorrent's Blackhole chips boast 768 RISC-V cores and almost as many FLOPS"

NkVczPkybiXICG — Wed, 28 Aug 2024 00:21:24 +0000

I think they mean TFLOPS, not FLOPS

New comment by NkVczPkybiXICG in "One problem with America's chip ambitions: Not quite enough staff"

NkVczPkybiXICG — Thu, 27 Jul 2023 01:39:12 +0000

Have they tried paying more? I know lots of people that would rather make chips than software but software pays better.

New comment by NkVczPkybiXICG in "How to Build an Exchange (2017)"

NkVczPkybiXICG — Fri, 06 Jan 2023 17:57:32 +0000

FTX didn’t make any of the architectural decisions presented in this talk.

New comment by NkVczPkybiXICG in "Ask HN: How’s iCloud Private Relay?"

NkVczPkybiXICG — Sun, 24 Apr 2022 17:32:32 +0000

Been great for me. Gets out of my way and I mostly don’t have to think about it. I’ve gone months without having an affirmative thought about it one way or another.

New comment by NkVczPkybiXICG in "I will be moving to the Netherlands"

NkVczPkybiXICG — Mon, 07 Jun 2021 21:14:57 +0000

Two words: spider rain

https://www.nationalgeographic.com/animals/article/150518-sp...

New comment by NkVczPkybiXICG in "Dyad: Minimal, portable async networking library for C"

NkVczPkybiXICG — Wed, 20 Aug 2014 03:15:05 +0000

It uses select, which is notorious for poor performance (although is relatively portable). Try not to use this project for anything high-load.

New comment by NkVczPkybiXICG in "Tracing Ebola’s Breakout to an African 2-Year-Old"

NkVczPkybiXICG — Mon, 11 Aug 2014 00:53:36 +0000

...or just move to Madagascar.

New comment by NkVczPkybiXICG in "First taste of Rust"

NkVczPkybiXICG — Thu, 31 Jul 2014 20:09:09 +0000

http://doc.rust-lang.org/num/

New comment by NkVczPkybiXICG in "Still Starting Up"

NkVczPkybiXICG — Mon, 28 Apr 2014 18:40:52 +0000

How about 500 USD to be settled in bitcoin (or similar virtual currency)? The metric for winning will be where the top (by market cap) 10 finance companies are headquartered at midnight Apr 28, 2034. If more are in NYC, I win. If more are in San Francisco, you win. If it's a tie, the "next highest" will be added until it isn't a tie.

Deal?

New comment by NkVczPkybiXICG in "Michael Lewis hits back"

NkVczPkybiXICG — Sat, 12 Apr 2014 03:33:51 +0000

When the orders were added, there was a modification to the FIX specification for the exchange. For example: http://www.directedge.com/Portals/0/docs/Direct%20Edge%20Nex.... It is everyone who trades on that exchange's responsibility to stay up to date with what's available, and how it interacts with their trading strategy.

"concealed", in this context, just means "too lazy to carefully read the documentation".

New comment by NkVczPkybiXICG in "Michael Lewis hits back"

NkVczPkybiXICG — Sat, 12 Apr 2014 02:35:57 +0000

Sorry. I said some pretty silly things.

See the new version of the posts. Hopefully it's a bit more coherent now.

New comment by NkVczPkybiXICG in "Michael Lewis hits back"

NkVczPkybiXICG — Sat, 12 Apr 2014 02:28:21 +0000

Everyone on that exchange has the same access to the same types of orders. HFTs only get priority if someone gives them priority. If these order types are so powerful, why aren't everyone using them?

Also, I will reiterate: HFTs NEVER get fills on quotes that are worse than any other participant on the same exchange. That violates RegNMS, and is straight up illegal.

New comment by NkVczPkybiXICG in "Michael Lewis hits back"

NkVczPkybiXICG — Sat, 12 Apr 2014 02:18:40 +0000

Sorry, that was vague. My point was that market participants who make many trades will rapidly converge on their mean return, with little fluctuation. If you sample a normal distribution 10M times with a mean of 0.01%, you will very rarely see a negative sum of the samples.

New comment by NkVczPkybiXICG in "Michael Lewis hits back"

NkVczPkybiXICG — Sat, 12 Apr 2014 02:16:36 +0000

Undocumented? http://cdn.batstrading.com/resources/membership/BATS_FIX_Spe...

The "public price that everyone else sees" is the same price as the HFTs see. These are available on the direct feeds from the various exchanges, and there's no discrimination against non-HFTs. Anyone who pays for it can get it. It's an equivalent advantage to having a Bloomberg - more data, faster.