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deadfa11 | 9 months ago | on: Rust compiler performance

I was working on a zig project recently that uses some complex comptime type construction. I had bumped to the latest dev version from 0.13, and I couldn't believe how much improvement there has been in this area. I am very appreciative of really fast iteration cycles.

deadfa11 | 9 months ago | on: An Interactive Guide to Rate Limiting

Ahh this has a name! I started doing this years ago and figured this must be used frequently because it’s so simple, elegant and can be done lock free. Thanks for calling it the name!

deadfa11 | 1 year ago | on: 1-800-ChatGPT

Zombo.com really had everything, way ahead of its time. It's been a while... maybe since the last time I lost the game.

deadfa11 | 1 year ago | on: New iMac with M4

I've been using the Sabrent one for a year or so. It's worked quite reliably once I got the cables sorted. I was unintentionally using one TB3 cable in the mix, and that made it pretty flakey. It has been pretty solid since swapping that for a TB4 cable.

deadfa11 | 2 years ago | on: Durable Coroutines for Go

Eh, this one seems a reasonable trade-off to me at this point. If you try to handle every potential issue upfront, you'll never release, and this seems entirely fixable down the road. Persistent coroutines is a pretty challenging area to explore (tried this with Lua in a previous venture), and this seems a pretty minor point in that overall complexity. I'm curious, what else have you come across that justifies the "really brittle" conclusion?

deadfa11 | 3 years ago | on: It's legal to hit children in school in 19 American states

I lived in Tennessee for a bit as a kid until about 7. The principal had this paddle hanging in his office, just menacingly looming there all the time. Every once in a while he'd hold these school-wide assemblies where the "worst" 2 or 3 kids would get paddled in front of everyone, adding this awful public humiliation. He had this fully bald head, and I have this distinct memory of his sweaty fucking face in that hot gym... I shave my head now due to some prior health issues. Every once in a while when I'm shaving, that image comes to mind and just that thought makes me boil a bit. I don't have kids, but I can't imagine how I'd react were someone doing this to them now.

deadfa11 | 5 years ago | on: Photon – a live demo of a natural language interface to databases

> What singer sang in the most stadiums?

    SELECT singer.Name FROM singer JOIN singer_in_concert ON singer.Singer_ID = singer_in_concert.Singer_ID GROUP BY singer.Singer_ID ORDER BY COUNT(*) DESC LIMIT 1
It is close... sort of? It figured out it needed to join, group, and order, but it only drew the relation to the concert, not the venue. Correctness seems a huge challenge here. Even knowing SQL, I feel I'm double checking my results at times. But I can see how this might be incredibly useful someday for Salesforce if there's confidence in the results.

deadfa11 | 12 years ago | on: OpenSSL vulnerable to timing attack?

Basically, measure the time difference in the memory comparison. Typically, comparisons will short-circuit. That is, stop as soon as a difference is detected. But this is a problem for security situations like key comparisons. If 10 out of 20 bytes match, it will take a little bit longer to compare then if 5 out of 20 bytes match. With enough iterations, the key can be recovered due to these differences in time. The correct solution is to use a constant time comparison that always runs through the entire sequence of bytes.

deadfa11 | 12 years ago | on: Warp, a fast preprocessor for C and C++

Sure, but is that using PCHs? And how much of that time is preprocessing? I don't think the parent question is whether clang can compile any project in less than 3 hours. I think the interesting question is if warp is more compelling than clang from a preprocessing perspective.
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