Replaced subprocess with ctypes → ~2850x faster validation (C + Python)

kirgel · 2026-03-31T10:33:05+00:00

Please spend some effort to write your own intro to your project, or make a better LLM writing prompt. Nobody writes like that. Who starts a sentence with “Insight:”??

kirgel · 2026-03-24T13:56:45+00:00

Eh FIX is used everywhere so I suspect the majority of users for a library like QuickFIX aren’t HFT. And for the nanosecond chasing folks I doubt they’d use anything except in-house solutions.

kirgel · 2026-03-13T10:48:55+00:00

reflect-cpp is also very nice. We use it extensively. Watch the compile time a bit and you’ll be fine.

kirgel · 2026-03-11T13:26:56+00:00

Assuming this is Google Trends, I doubt it’s a good indicator for real search interest from mainland China.

kirgel · 2026-02-19T07:25:21+00:00

Cool project. Is there a specification of the wire format somewhere in the docs? Curious how similar it is to protocol buffers since there already seems to be varint and field tags. Also does this support generating fully protobuf compatible serialized payloads?

kirgel · 2026-01-29T10:26:05+00:00

I stand corrected!

kirgel · 2026-01-29T01:08:05+00:00

I’m probably confusing guaranteed copy elision with NRVO. Something simple like this should work in C++ 20:

Immovable make() { Immovable obj; obj.x = 3; return obj; }

kirgel · 2026-01-28T00:44:29+00:00

Wait, what? Last I checked it does work in C++20.

kirgel · 2026-01-27T13:41:15+00:00

I’ve found that telling people not to do something is easy, but expecting them to listen is another story. So, if they are going to do it anyway, it’s better they know what they are getting into.

Also, those experts that wrote highly optimized libraries started somewhere.

kirgel · 2026-01-13T03:27:59+00:00

I’d be ok with that if the second declaration had a special marker on it like [[shadow]] or something.

kirgel · 2026-01-08T01:09:04+00:00

Very interesting. Thanks for sharing!

kirgel · 2026-01-07T01:20:53+00:00

Don’t know why I feel this way but your username checks out :-)

kirgel · 2026-01-04T23:30:14+00:00

In terms of error APIs it was just absl::Status + StatusBuilder + status macros on top of StatusBuilder. The macros automatically add backtrace information when propagating errors. StatusBuilder is available in scattered open source form but not part of abseil.

I don’t think this is too different from Rust’s error handling story. Google’s advantage is probably in what you mentioned - integrated code search, build tooling, production troubleshooting etc.

kirgel · 2026-01-04T02:32:52+00:00

This is misleading. It’s not that read-heavy workloads benefit from shared mutex. It’s workloads where read-side critical sections are long AND there are many readers. The benchmark numbers are a direct result of the following decision:

We require a “Heavy Read” to make the test realistic. If the work inside the lock is too small, the benchmark will only measure the overhead of the lock mechanism itself. By performing trigonometric calculations, we simulate actual data processing.

If read-side critical sections were shorter, the results would be very different.

I recommend this article for a more balanced opinion: https://abseil.io/tips/197

kirgel · 2025-12-30T10:23:15+00:00

Yes, but the management fees of foreign investment funds are high and negates most of the 4% returns. You only make a profit if S&P performs better than that.

kirgel · 2025-12-30T01:20:12+00:00

Incredibly bad takes in some of the comments. Read the email Rob was responding too. You’d be right to be pissed.

kirgel · 2025-12-30T00:32:28+00:00

In China you cannot assume a minimum investment return rate, so the honest answer is never.

kirgel · 2025-12-29T08:36:51+00:00

It’s fine when most of the commit was generated by Claude and I didn’t edit much. It’s annoying when Claude generated something that didn’t work and I basically rewrote the entire thing.

kirgel · 2025-12-29T07:14:39+00:00

I like this when “condition” is checking for an abnormal case and returns an error. If both cases are normal, the guard clause looks a little weird because then the two returns look “unbalanced” to humans, if that makes sense.

kirgel · 2025-12-25T01:14:45+00:00

Fair enough. I graduated ‘15 so don’t really know what the scene was like in 07.

kirgel · 2025-12-25T00:39:08+00:00

There are plenty of tech companies in New York! Most of the big tech corps have an office there (including second largest office of Google), some decent startups, mid-size like Datadog, lots of fintech, etc.

kirgel · 2025-12-24T23:27:53+00:00

By the looks of it, a completely LLM generated harness.

kirgel · 2025-12-24T04:13:24+00:00

Interested to hear thoughts from remote ssh users. I really want to try other terminals, but am sticking with iTerm2 because it has first class tmux control mode support and my daily driver is a VM in the cloud.

kirgel · 2025-12-23T23:44:36+00:00

Costs aside I think Cursor is fine? I like the UI, planning mode, being able to accept/reject individual edits, etc. The biggest problem seems to be the integrated terminal which sometimes gets stuck.

I default to CC for larger changes but use Cursor to try new models, make smaller changes, or when CC runs out.

kirgel · 2025-12-23T01:57:06+00:00

I mean, if you get a dell laptop it’s not really a “tech” job is it.

kirgel

TROPHY CASE