Felix Geisendörfer (@felixge) 's Twitter Profile
Felix Geisendörfer

@felixge

Software Engineer @datadoghq working on Go Profiling, Performance, OpenTelemetry and more. Before: @Apple, Co-founder @transloadit, @nodejs core dev

ID: 9599342

linkhttps://github.com/felixge calendar_today22-10-2007 14:55:08

15,15K Tweet

13,13K Followers

1,1K Following

Felix Geisendörfer (@felixge) 's Twitter Profile Photo

My daughter has been putting all her stuffed animals “to sleep” by putting towels over their bodies (including the head) for a while. It always felt a little creepy ..., but she has now graduated to wearing medical gloves while doing it. When should I start to get worried? 😂

Jaroslav Bahorik (@bachorikj) 's Twitter Profile Photo

Recording of my (and Johannes Bechberger ) talk about advancing Java profiling at #fosdem2025 video.fosdem.org/2025/ua2118/fo… #Java #Profiling #PerformanceEngineering #JFR #eBPF

Halvar Flake (@halvarflake) 's Twitter Profile Photo

I wrote a political blog post titled "the debt brake is stupid"; and I narrowly didn't call it "the debt brake is stupid and so are you if you support it". Link in the next tweet because Twitter's ranking algorithm is also stupid.

Felix Geisendörfer (@felixge) 's Twitter Profile Photo

I'll be speaking about "The State of OpenTelemetry Profiling" with Damien Mathieu at KubeCon EU's Observability Day on April 1st in London. I'd love to meet as many people as I can while I'm there. Ping me if you're in town! I'll be around from Mon evening until Wed evening.

Felix Geisendörfer (@felixge) 's Twitter Profile Photo

The discussion around the TypeScript migration to Go has made it obvious that we need a version of this meme with another character or two who is offended at being neither the current nor future love interest 🙈.

The discussion around the TypeScript migration to Go has made it obvious that we need a version of this meme with another character or two who is offended at being neither the current nor future love interest 🙈.
cat (@_catwu) 's Twitter Profile Photo

Wrapping up our week of Claude Code updates with a much-requested feature: web fetch. This eliminates a major context-switching pain point. Here's how it works:

Wrapping up our week of Claude Code updates with a much-requested feature: web fetch.

This eliminates a major context-switching pain point. Here's how it works:
Brandur (@brandur) 's Twitter Profile Photo

Periodic callout to Jackc's Pgx, which is *absurdly* solid software. Every time I think I've found a bug in it, it turns out to actually be my fault. It just happened again for like the 50th time. github.com/jackc/pgx