Hacker News: sleepydog

New comment by sleepydog in "Google Hits 50% IPv6"

sleepydog — Sun, 21 Jun 2026 12:52:29 +0000

HE has a lot of points of presence in North America and Europe: https://pop.he.net/ , so latency should be negligible there. Elsewhere, yes you might see higher latency.

New comment by sleepydog in "The history of butterfly swimming"

sleepydog — Tue, 16 Jun 2026 16:40:26 +0000

The modern Olympics is at least as much for entertainment as it is for measuring human ability, and the butterfly is simply an awe-inspiring technique. The line of swimmers repeatedly shooting out of the water like flying fish is mesmerizing. Who cares if they're not going as fast as freestyle?

New comment by sleepydog in "Trump signs downsized AI order after weeks of reversals"

sleepydog — Tue, 02 Jun 2026 18:44:53 +0000

You're absolutely right, abs-o-lutely, everybody says so. A lot, lot lot of people have been saying, you know they come to me and they say, "Mr. Claude, I can't believe the stuff I'm hearing, everybody is telling me he's right, is it true?" And I tell 'em, I say you're goddam right, that's what I say, but honestly folks, despite the negative press covfefe we've had a hell of a year, and that's really what it is with the nuclear folks, you can't trust em as far as you can throw em if you ask me, and believe me I've been throwing them around a LO

New comment by sleepydog in "Martin Scorsese Is Embracing A.I."

sleepydog — Tue, 02 Jun 2026 14:15:10 +0000

We could invade other countries and take their actors. We could reinstate the actor's draft or do mandatory 1-2 years actor's service like some other countries do

New comment by sleepydog in "PCB devboard the size of a USB-C plug"

sleepydog — Mon, 09 Mar 2026 06:09:18 +0000

https://tomu.im/somu.html

This is an stm32l432kc in the form of a yubikey nano.

New comment by sleepydog in "QUIC and the end of TCP sockets"

sleepydog — Thu, 09 Oct 2025 13:56:43 +0000

I guess you are referring to the TLS requirement? I guess I could see how on a more restrictive platform like a phone you could conceivably be prevented from accepting alternate CAs or self signed certificates.

New comment by sleepydog in "Google's Liquid Cooling"

sleepydog — Mon, 25 Aug 2025 19:26:28 +0000

AWS had a similar article a couple months ago:

https://www.aboutamazon.com/news/aws/aws-liquid-cooling-data...

In either case I cannot find out how they dump the heat from the output water before recycling it. That's a problem I find far more interesting.

New comment by sleepydog in "GitHub pull requests were down"

sleepydog — Tue, 05 Aug 2025 16:36:19 +0000

... or get out.

New comment by sleepydog in "QUIC for the kernel"

sleepydog — Thu, 31 Jul 2025 21:51:02 +0000

Encryption gets you data integrity "for free". If a bit is flipped by faulty hardware, the packet won't decrypt. TCP checksums are not good enough for catching corruption in many cases.

New comment by sleepydog in "Two guys hated using Comcast, so they built their own fiber ISP"

sleepydog — Mon, 14 Jul 2025 18:32:39 +0000

The EU is better on average, but isn't universally great either. I pay 60 EUR for 200Mbit down/20Mbit up ADSL in Amsterdam, after my 6-month discount ran out. No fiber in my neighborhood yet. There's one gigabit provider in my neighborhood (Ziggo) and they have a bad reputation. For the same price I was getting FiOS gigabit in NYC.

New comment by sleepydog in "At Amazon's biggest data center, everything is supersized for AI"

sleepydog — Fri, 11 Jul 2025 12:36:34 +0000

For very hot data centers, evaporative cooling is still popular. This is from 2012 but I doubt much has changed.

https://blog.google/outreach-initiatives/sustainability/gett...

New comment by sleepydog in "OpenAI to buy AI startup from Jony Ive"

sleepydog — Wed, 21 May 2025 18:10:08 +0000

Don't sell yourself short. If you have eyes and a voice, you can learn to read sheet music and hum a tune.

New comment by sleepydog in "Changes since congestion pricing started in New York"

sleepydog — Wed, 14 May 2025 22:28:02 +0000

The traffic has a negative effect on more than just car owners--smog, noise, accidents, slower taxis, to name a few. Why should only car owners, who are a minority in Manhattan, vote on a problem that affects everyone?

New comment by sleepydog in "Ask HN: What are you working on? (April 2025)"

sleepydog — Mon, 28 Apr 2025 14:25:06 +0000

I'm working on a multicast dns implementation in OCaml. It's a library allowing one to build custom queries/responders, plus a conventional querier that can be used as a stub resolver for .local to get the resolver functionality of avahi.

My main motivation was to implement a service that publishes the addresses of containers and vms that I run on my workstation to my local network, but it gradually has grown into a full-blown implementation of RFC 6762, which has been fun.

New comment by sleepydog in "Understanding DNS Resolution on Linux and Kubernetes"

sleepydog — Wed, 26 Mar 2025 22:18:17 +0000

I didn't dig into it too deeply at the time, but I think part of it was that you don't need to open and write to a socket, so that's avoiding some system calls (socket(), bind(), sendto(), close()). IIRC we had nscd set up so clients directly read from shared memory that nscd kept updated, rather than getting requests over a socket.

There's also probably some savings around not having to convert between the structures used by gethostbyname and DNS questions&answers.

New comment by sleepydog in "Understanding DNS Resolution on Linux and Kubernetes"

sleepydog — Wed, 26 Mar 2025 14:56:38 +0000

I used to work for a huge email sender (constant contact). Our mail servers needed to perform an absurd number of lookups while receiving and validating mail. When I was there, we used dnscache, running locally, on all our mail servers. But even with a local dnscache, the overhead of making DNS requests and handling their responses was high enough that adding nscd made a noticeable improvement in CPU usage.

New comment by sleepydog in "A Sneaky Phish Just Grabbed My Mailchimp Mailing List"

sleepydog — Tue, 25 Mar 2025 10:04:39 +0000

For the read-only, newsletter-type mailing lists, this makes sense and I do it too. But for mailing lists that are used more as a forum, I like posting with a recognizable, memorable email address. I've gotten some really sweet emails from people who read a post I made and reached out to me directly in the past. I wouldn't want to miss those, spam be damned.

New comment by sleepydog in "AMC Theatres will screen a Swedish movie 'visually dubbed' with the help of AI"

sleepydog — Sun, 23 Mar 2025 01:11:19 +0000

I noticed Netflix doing this while watching this series: https://about.netflix.com/news/beyond-goodbye-premieres-nove...

It was so jarring I couldn't watch it and switched to Japanese with subtitles. Their mouths looked so stiff and unnatural and out of sync with their expressions that all me and my wife could talk about was how bad it looked.

New comment by sleepydog in "Avoid ISP Routers (2024)"

sleepydog — Sun, 02 Feb 2025 10:26:17 +0000

I got a monthly discount (small, between 5 and 10$) for using my own cable modem in Sunnyvale. I was using Comcast business, though.

New comment by sleepydog in "Stanley Kubrick's the Shining Maps of the Overlook"

sleepydog — Wed, 11 Dec 2024 11:15:08 +0000

I remember enjoying this video essay on the shining and the spacial anomalies in the overlook hotel. It contains snippets of a recreation of the impossible hotel in a Duke Nukem 3D map.

https://www.collativelearning.com/the%20shining.html