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florianl

@florianl.bsky.social
96 followers 63 following 7 posts

looking into bits and bytes

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Kelsey Hightower @kelseyhightower.com · 19/02/2026
This version of the future isn't appealing to me.
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Charlotte Brandhorst-Satzkorn 🇨🇦 @catzkorn.dev · 16/02/2026
Just a small PSA, don't give your significant other ideas 20 minutes before going to see a comedy show. The Internet is forever @jbrandhorst.com 😘😂🦵🏻 youtube.com/shorts/_MHAS...
youtube.com
We just had to have a free sample #Shorts
YouTube video by Carisa Hendrix & Lucy Darling
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Kelsey Hightower @kelseyhightower.com · 21/01/2026
Any president that starts a war must be on the frontline to fight in it.
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Daniel Martí @handle.invalid · 21/01/2026
I'll be at #FOSDEM next week! Haven't been since 2014, which feels like a lifetime ago. If we have met or collaborated in the past, or you'd like to say hi, my DMs are open :) #golang #cuelang
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florianl @florianl.bsky.social · 17/01/2026
With #FlightRecorder #Go introduced a powerful tool. As I'm involved in the #OTel Profiles signal, I have created an OTel receiver that transforms Go's FlightRecorder format into the OTel Profiles signal. Now you can analyze Go diagnostics in your own favorite backend/UI! github.com/florianl/fli...
github.com
GitHub - florianl/flightrecorderreceiver: The FlightRecorder receiver collects Go Flight Recorder traces and transforms them into OTel Profiles
The FlightRecorder receiver collects Go Flight Recorder traces and transforms them into OTel Profiles - florianl/flightrecorderreceiver
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Felix Geisendörfer @felixge.de · 16/12/2025
The talk @florianl.bsky.social and I submitted has been accepted at KubeCon 2026 in Amsterdam. 🎉 Small wrinkle: The talk says that the profiling signal is in alpha … which is not true yet. Fear driven development will continue until reality and talk description are aligned!
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Stefan Marr @stefan-marr.de · 15/10/2025
Can We Know Whether a Profiler is Accurate? Spoiler: yes we can! But it took us figuring out a way to work around the fundamental observer effect. stefan-marr.de/2025/10/can-... If you're at SPLASH, don't miss our talk at VMIL today and at OOPSLA on Saturday!
stefan-marr.de
Can We Know Whether a Profiler is Accurate?
Measuring causes profiles to change, so is there a way to work around it and know whether a profile is accurate?
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florianl @florianl.bsky.social · 06/09/2025
I'm excited to see that github.com/florianl/go-tc reached 500 stars on GitHub! It all began as a way for me to explore loading an eBPF program in pure Go via the traffic control API of the Linux kernel, and it's awesome to see so many people finding it useful. Thanks everyone!
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Klaus Post @klauspost.com · 26/08/2025
Whoever did #golang "modernize" - thank you! pkg.go.dev/golang.org/x...
pkg.go.dev
modernize package - golang.org/x/tools/gopls/internal/analysis/modernize - Go Packages
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Felix Geisendörfer @felixge.de · 20/07/2025
Is anybody here able to put me in touch with somebody at Apple who could help with fixing setitimer(2) on macOS or figure out another approach to CPU profiling for Go and other user space programs? github.com/golang/go/is...
github.com
cmd/pprof: macOS 12.6.1 profile overcounts system calls (again) · Issue #57722 · golang/go
What version of Go are you using (go version)? $ go version go version go1.19.4 darwin/arm64 This is on macOS 12.6.1 with an M1 chip, but the problem seems to affect Intel as well. Does this issue ...
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Nicholas Nethercote @nnethercote.bsky.social · 18/07/2025
New blog post: I am a Rust compiler engineer looking for a new job nnethercote.github.io/2025/07/18/l...
nnethercote.github.io
I am a Rust compiler engineer looking for a new job
For the past 3.75 years I have been fortunate to work on Futurewei’s Rust team, where I had enormous freedom to “make Rust better” however I see fit. It has been the highlight of my career and I am gr...
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Michael (compiler-errors) Goulet @errs.io · 02/07/2025
Howdy all. I'm unfortunately not going to be with my employer for much longer due to team relocation. If anyone has any info on roles that would allow me to continue my Rust compiler work (in New York City), they'd be greatly appreciated.
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Daniel Martí @handle.invalid · 20/06/2025
I'll be speaking at GopherCon UK in London this August! Comment below or drop me a message if you'd like to chat about #cuelang or #golang :) Odd that they're not posting on Bluesky though - such a missed opportunity.
gophercon.co.uk
GopherCon UK is an annual event with two multi-track conference days and one workshop day, held in the Brewery, in the heart of London.
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Felix Geisendörfer @felixge.de · 17/06/2025
I’m at #gopherconEU this week. Let’s chat if you’re here as well! #golang
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halvarflake.bsky.social @halvarflake.bsky.social · 11/06/2025
I have a Thinkpad X1 Carbon 13th Gen Aura -- with an Intel ARC GPU that I'd like to use to compute. I also am using Debian. Now, Intel seems to only publish their drivers for Ubuntu - is there a way to get their hardware to run on Debian? Also, why are all GPU vendors so bad with their drivers?
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Daniel Martí @handle.invalid · 09/06/2025
At least for #golang, avoid using deps.dev for now. It seems to be reporting security advisories based on outdated information, and the project seems unmaintained, as I reported this two weeks ago but got nothing at all.
github.com
Go dependency versions are wrong or outdated for a tagged module version · Issue #251 · google/deps.dev
https://deps.dev/go/cuelang.org%2Fgo/v0.13.0 shows that cuelang.org/go@v0.13.0 is vulnerable to https://deps.dev/advisory/osv/GO-2025-3488. This is because it thinks we depend on golang.org/x/oauth...
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David Buchanan @retr0.id · 31/05/2025
cut my heap into pieces, this is my crash report: allocation, no alignment don't give a fuck if it faults on assignment this is fatal abort()
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halvarflake.bsky.social @halvarflake.bsky.social · 02/05/2025
www.zymtrace.com/article/zero... Cool stuff :-)
zymtrace.com
Unlocking Efficient AI: zymtrace distributed GPU Profiler, now publicly available
Trace GPU performance issues from kernel stalls or memory bottlenecks—directly to the PyTorch code, CUDA kernels, native code, or scheduler threads that launched them—with zero friction
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Eric 🍁 @eroc.bsky.social · 18/04/2025
Gemini, draw me a diagram of standard TCP headers
An incredibly fucked diagram, it’s useless
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florianl @florianl.bsky.social · 03/04/2025
If you are at #Kubecon, focused on #observability and interessted in other use cases for #eBPF than metrics and traces, ping me :)
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halvarflake.bsky.social @halvarflake.bsky.social · 27/03/2025
Do not allow Amthor to abolish the German Freedom of Information law! fragdenstaat.de/artikel/exkl...
fragdenstaat.de
Lex FragDenStaat: Union will Informationsfreiheitsgesetz abschaffen
In den Koalitionsverhandlungen drängen CDU und CSU darauf, das Recht auf staatliche Informationen abzuschaffen. Angetrieben wird das Vorhaben von Philipp Amthor – der wegen seiner umstrittenen Nebentä...
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Kelsey Hightower @kelseyhightower.com · 25/03/2025
I don't like using tools when I don't understand how they work.
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florianl @florianl.bsky.social · 20/03/2025
I was wondering what "docker buildx build ..." is doing on my system. It turns out most CPU time is spent on updating the progressbar. Yes, sampling based on CPU profiling does not paint a full picture of the performance of an application. Maybe I get some real output from this process at some point
flamegraph showing that most CPU time is spent on updating the UI progressbar
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Dr. Kate @radkat.fitzpat.com · 19/03/2025
Why there's no board game like Monopoly but for software industry? "You landed on the reorg square, you lose your turn unless you have an internal transfer card"
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Eliot Higgins @eliothiggins.bsky.social · 10/03/2025
It's not a matter of it can't happen here, or it could happen here, we're at it's happening here.
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Felix Geisendörfer @felixge.de · 07/03/2025
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 Monday evening until Wednesday evening.
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Kelsey Hightower @kelseyhightower.com · 03/03/2025
Most of what we call "tech" is about getting the right information into a database and trying to prevent the wrong person from reading or updating it.
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Eliot Higgins @eliothiggins.bsky.social · 01/03/2025
Estonia has a mandatory high school course called "Media and Manipulation," where students analyse persuasion techniques, fact-check claims, and recognise propaganda.
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Azeria @azeria-labs.com · 28/02/2025
I can’t believe it, I finally got my O1A visa!! It also means I can finally accept training requests again and deliver onsite trainings in the US. First stop: @re-verse.io. Hope to see some of you at the conference today!
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halvarflake.bsky.social @halvarflake.bsky.social · 31/01/2025
With Yandex also open-sourcing a multi-runtime eBPF profiler, I am very proud that we were directionally *extremely* right with optimyze/prodfiler. What we built in 2021 is the sort of technology that will run everywhere by 2030.
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Daniel Martí @handle.invalid · 31/01/2025
The #golang encoding/json/v2 proposal is live! Huge props to Joe Tsai for the hundreds of hours he poured into this project. github.com/golang/go/is...
github.com
proposal: encoding/json/v2: new API for encoding/json · Issue #71497 · golang/go
Proposal Details This is a formal proposal for the addition of "encoding/json/v2" and "encoding/json/jsontext" packages that has previously been discussed in #63397. This focuses on just the newly ...
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Patrick Walton @pcwalton.turbofishstudios.com · 27/01/2025
Landed experimental GPU occlusion culling in @bevyengine.org. This is the modern 2-phase occlusion culling system. It's fully dynamic, runs entirely on GPU, and requires no baking and no artist-defined occlusion volumes.
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Liz Rice 💛💙🐝 @lizrice.com · 17/01/2025
🗳️ Votes are open for #CNCF governing board Silver member reps, and I’d love to continue representing this group ⚖️ We need to balance the needs of vendors, maintainers, projects, community, and end users. Cloud Native is not a zero-sum game, there is room for growth and success for all!
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jub0bs @jub0bs.com · 15/01/2025
💡 Performance-optimisation bounties! "Send us a changeset that demonstrably improves the performance of this area of our OSS project by n% and we'll reward you with $m." I wish there were such a thing... #bugbounty
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Kelsey Hightower @kelseyhightower.com · 13/01/2025
What's the point of being rich if you can't afford to do the right thing.
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halvarflake.bsky.social @halvarflake.bsky.social · 23/12/2024
New continuous profiling play which promises GPU profiling and better data analysis: www.zymtrace.com/article/intr... (not mine, but I am investor & advisor)
zymtrace.com
Introducing zymtrace, world’s first distributed profiler for GPU & CPU workloads
Introducing zymtrace - the world’s first distributed profiler for GPU & CPU workloads
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Sebastian Seiffert @sci-ffert.bsky.social · 20/12/2024
Vor drei Wochen gab's in Mainz eine besondere Vorlesung. In 90 Minuten ging es um die Physik & Chemie des Klimas; und noch um weit mehr. Ein Video davon ging diese Woche ziemlich rum. Hier dessen wichtigste Inhalte in 9 Minuten. Im Grunde reicht ein Satz: Klimaschutz ist Emissionsreduktion pro Zeit!
youtube.com
Was ist Klimaschutz; und was bleibt davon?
YouTube video by Prof. Sebastian Seiffert
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Jonathan W. Gray @elmcitytree.blacksky.app · 03/12/2024
A few important fact to remember: S. Korea lived under some form of military dictatorship from 1965-1988! Brazil lived under a military dictatorship from 1964-1985! Democracy is not an abstraction to these folk, it's a vulnerable thing that they want to protect.
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Filippo Valsorda @filippo.abyssdomain.expert · 13/06/2023
Sigh. I really wish we all agreed vulnerabilities in unused portions of dependencies are not worth wasting developer time on. Instead, here's a LOW finding for a vulnerability in x/text that doesn't affect x/crypto. [ from github.com/ConsenSys/gnark-crypto/b… ]
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