Viewing profile — javierhonduco

I really love Zed and I want them to really succeed. Unfortunately it seems that they are swamped with various things and the issue tracker is not a priority for the team, which fa…

This is very sad. I bought a PS5 with disc precisely to “own” the games. End of an era, I guess.

Great write-up. As a side note (not a Googler myself and this is 100% my opinion) Lalit’s team was hiring in London, UK. If you are interested in working in low level performance t…

Super cool project! Curious on how this compares to Meticulous in terms of functionality and approach. Thanks!

Wondering to what degree this was done to support Anthropic’s web crawler. Would assume that having a whole JS runtime rather than just a HTTP client could be rather useful. Just h…

I am incredibly happy that Apple has added MTE support to the latest iPhones and perhaps the M5 chips as well (?). If that’s the case I don’t think any other personal computers hav…

Really enjoyed reading this. Thanks for writing it!

These metrics can be used in performance reviews at Facebook.

Zig 0.13 is required according to https://ghostty.org/docs/install/build

This is pretty cool work. Something that’s been on my mind recently is that there’s a need of a high-performance flame graph library for the web. Unfortunately the most popular fla…

Axum + minijinja is quite close to this I would say. Been using it for a little while and I am very happy so far.

Haven’t had the chance to play with WezTerm just yet but wanted to share that the author is an incredibly smart, friendly, and humble. Had the opportunity to work on a project toge…

Or in other parts of the kernel. It's been the case in multiple occasions that buggy locking (or more generalised, missing 'resource' release) has caused problems for perfectly saf…

It is not, programs that are accepted are proved to terminate. Large and more complex programs are accepted by BPF as of now, which might give the impression that it's now Turing c…

It’s easy to miss this in large codebases. Having to check every single struct initalisation whenever a field is added is not practical. Some folks have mentioned that linters exis…

Personally I’m not a fan of Go’s default zero-initialisation. I’ve seen many bugs caused by adding a new field, forgetting to update constructors to intialise these fields to “non-…

This looks incredibly comprehensive, thanks for sharing! Should have added that I read this book in 2016, and the first edition is even older, so there’s naturally been lots of new…

For anybody interested in this topic, “Release it!” is a pretty good read. (Not affiliated in any way, just enjoyed reading it) https://www.oreilly.com/library/view/release-it/9781…

Overall, I am for frame pointers, but after some years working in this space, I thought I would share some thoughts: * Many frame pointer unwinders don't account for a problem they…

There's always room for improvement, for example, Samply [0] is a wonderful profiler that uses the same APIs that `perf` uses, but unwinds the stacks as they come rather than dumpi…