While cleaning a storage room, our staff found this tape containing #unix v4 from Bell Labs, circa 1973 Apparently no other complete copies are known to exist: https://gunkies.org/wiki/UNIX_Fourth_Edition We have arranged to deliver it to the Computer History Museum #retrocomputing

Just like all the 5th of november, I am watching V for Vendetta once again, and every year I see more and more similitudes with the current state of the world. Quite the dystopia we have now...

The new, slightly less patient, Daniel strikes.

Asking people why do they self-host is like asking why they cook at home when there are so many good restaurants out there. #selfhosting

First training workout at 5:30 completed!

First walnut harvest!

Best Irish ballad ever: https://www.youtube.com/watch?v=_5UhRcpyLyc Jim McCann is such a singer!

One of the highlights of my day is poring a cup of coffee and listening to this playlist: https://open.spotify.com/playlist/37i9dQZF1DX17GkScaAekA?si=9e2f484b641e467b while I check what my plans are for the day and how the calendar looks like.

And now for this episode of first world problems: this new house that we started renting is too big for us, and has some expenses that are completely superfluous, unfortunately this was the only one that we could while still in Germany so we need a smaller house but we are tied here for 2 years :(

Hey serious question, what do you do to coexist with this massive existential dread about the current state of the world?

Charlie Kirk always said that gun deaths was the price to pay for the 2nd ammendment, he died by a gun shot at 31 years old. You cannot deny he was consequential with his ideas.

Built docscandroid.app - a privacy-first document scanner PWA! Scan docs with your camera Auto edge detection + manual adjustment Perspective correction for straight documents Multi-page PDFs at 300 DPI Works offline, installs like native app 100% client-side - docs never leave your device! […]

New article: NUMA allocators for high-performance systems Ever wondered why your trading system has inconsistent latencies? Memory placement matters more than you think! Remote NUMA access = 2x slower than local (120ns vs 60ns). For sub-microsecond HFT systems, that's huge. My beginner guide […]

Can someone explain to me why in 2025 we still cannot create desktop zones in MacOS? #apple #applefail

Orgulloso de compartir este artículo del diario sobre mi esposa: https://www.elpais.com.uy/el-empresario/es-montevideana-emigro-a-europa-y-hoy-trabaja-en-hubspot-la-compania-de-sus-suenos

I have submitted to draft a Wikipedia article on Tail latency: https://en.wikipedia.org/wiki/Draft:Tail_latency Please, help me to make it more complete! #software #computer #science

New HFT article: Why P99.9 latency > average performance Your system: 100ns avg latency ✅ Reality: 10μs P99.9 = losing money In trading, that 0.1% tail determines profitability. Key optimization strategies: • Zero-alloc hot paths • Wait-free data structures• Pre-allocated buffers • Monitor […]

Very interesting discussion happening now on HN regarding hardware benchmarking: https://news.ycombinator.com/item?id=45021078 #rustlang #benchmark #software #hardware

It's incredibly frustrating when you make a mistake in very old legacy code and a coworker publicly calls you out as being sloppy. Instead, the focus should be on the processes that allow mistakes to happen in untested code. We need constructive feedback and systemic improvements to prevent […]

Check out how neat the generated documentation looks for my benchmarking suite: https://deepwiki.com/sh4ka/hft-benchmarks #rustlang #hft #benchmark

If you want your HFT operations perform up to the limit of the metal, you need to bypass the kernel for network, this paper is a solid base in uderstanding this solution: https://dl.acm.org/doi/pdf/10.1145/3689031.3696083 #hft #rustlang #trading #network

I believe this should be shared, be seen, and be heard: https://youtu.be/2_Dtmpe9qaQ?si=iu6brU565mBC32he I believe people should have the right to repair. I hate it when I have to throw a device away just because the battery died or because the USB connection has stopped working, or even […]

Article about my benchmarking framework using CPU timestamp counters for cycle-level accuracy. • Cross-platform timing (x86_64 + ARM64) • Statistical analysis focused on tail latency • ~35ns (~42 in aarm64) measurement overhead • Automated performance regression detection We can detect changes […]

I am currently open for opportunities in systems programming in #rustlang, if you think I could be valuable for some role, please forward it to me, I will be very grateful! #job #software