Failing both the "misleading or clickbait" and the "please use original title" guidelines[0]. The article admits the image-stamp-ruse in the second paragraph:

This benchmark is, of course, unfair. It is only measuring the time to encode and decode a message in memory. Cap’n Proto gets a perfect score because there is no encoding/ decoding step.

Title: "Cap'n Proto: Introduction" H1: "Introduction"

Submitted many times 2016[1][2][3], 2018[4], 2020[5][6], 2021[7], 2022[8][9], 2023[10][11]

[0]: https://news.ycombinator.com/newsguidelines.html [1]: https://news.ycombinator.com/item?id=10825233 [2]: https://news.ycombinator.com/item?id=11229153 [3]: https://news.ycombinator.com/item?id=12471266 [4]: https://news.ycombinator.com/item?id=16397346 [5]: https://news.ycombinator.com/item?id=23924978 [6]: https://news.ycombinator.com/item?id=24065123 [7]: https://news.ycombinator.com/item?id=27061046 [8]: https://news.ycombinator.com/item?id=31189502 [9]: https://news.ycombinator.com/item?id=32468581 [10]: https://news.ycombinator.com/item?id=35128998 [11]: https://news.ycombinator.com/item?id=36913680

To be fair protobufs are not purely focused on speed. And what speed exactly? Speed to parse, read, transfer?

Flatbuffers are purely fast read/write by storing buffers that can be mmap’d right into memory. At the cost of some size bloat (slower to transfer over the wire).

Protobufs are a mix of speed but also size over the wire being reduced which does reduce speed of parsing but increases speed transferring over the wire.

I think capnproto is a fantastic project, but considering google is built on top of grpc/protobufs, they will be around for effectively ever which gives it a lot of reliability in my book.

I had a shitty manager 20 years ago that constantly used “infinitely” literally and unironically (and also without qualification or very “gracious” caveats in his favor), thanks for the PTSD!

In my testing I’ve found protobuf to be a bit faster.

Happy to see capnproto on the front page!

Fyi - kentonv, its creater, is on here and is usually super responsive.

This has been around since 2013. It's good, but it's not new.