dalvrosa

Over the last decade I’ve been playing with dozens of servers from multiple providers. These are the steps I’ve been perfecting to get up to speed fast and feel right at home on a new machine. Wrote it down here mostly as a personal reference, but hopefully useful to someone else too.

Glad that you like it :)

Very. Very nice

Thanks for bringing some intuition!

Fair, sorry about that

Great example

Here is used in the Lebesgue measure theory sense

Already replied :)

The source code of the website is open if you wanna check it out!

There is some geometric intuition in wikipedia page for this theorem you may like :)

Fair

Fair, but agentic tooling can benefit quite a lot from this

Opencode, ClaudeCode, etc, feel slow. Whatever make them faster is a win :)

Lol. Funny story :)

Thanks for the explanation :)

Thanks!

I'm not sure about the single-core scenario, but would love to learn if someone else wants to add something

In reality multiple threads for single core doesn't make much sense right?

Thanks. Do you happen to know why hyperthreading should be disabled?

In prod most trading companies do disable it, not sure about generic benchmarks best practices

Nice one!

Codeberg vs selfhosted Gitlab. What do you think?

Agreed. For benchmarking I used this <https://github.com/david-alvarez-rosa/CppPlayground/blob/mai...> which relies on GoogleBenchmark and pins producer/consumer threads to dedicated CPU cores

What else could be improved? Would like to learn :)

Maybe using huge pages?

Exactly, that's right

Thanks! That's not ensured, optimizations are only valid due to the constraints

- One single producer thread

- One single consumer thread

- Fixed buffer capacity

So to answer

Are they ensuring two threads can't push to the same slot nor pop the same value from the ring?

No need for this usecase :)

Thanks for the feedback <3

100% agree +1

Interesting, I've never heard about anybody using this. Maybe a bit unreadable? But yeah, should work :)

Indeed that's true. That extra constraint enables further optimization

It's mentioned in the post, but worth reiterating!

Glad that it helps :)

Actually I'm not sure. GPL was for source code of the website itself

I guess the code samples inside post are under https://david.alvarezrosa.com/LICENSE

But feel free to ping me if you need different license, quite open about it

Yeah, different languages will have different syntaxes and ways of using atomics

But at the hardware level all are kindof the same

Sorry, but that's not actually true. There are no data races, the atomics prevent that (note that there are only one consumer and one producer)

Regarding the style, it follows the "almost always auto" idea from Herb Sutter

Nice one, thanks for sharing. Do you wanna share the ring buffer code itself?