🔥Flame charts are now GA for all CPU profiles on Polar Signals Cloud. X-axis = wall-clock time, so periodic GC, phase shifts, and lock contention show up as patterns instead of getting averaged out. www.polarsignals.com/blog/posts/2...
Introducing Flame Charts for All CPU Profiles | Polar Signals
The temporal dimension flame graphs might be missing.
polarsignals.com
The Polar Signals profiler got a major upgrade. New dashboard, and everything is faster and smoother 🚀 We can’t wait for you to try it out! Here's what's new and how we did it: www.polarsignals.com/blog/posts/2...
Our new and faster profiler dashboard | Polar Signals
Learn more about our new and improved profiler dashboard.
polarsignals.com
Polar Signals@polarsignals.com · 4w agoWhat if loading a data lake was as simple as writing a SQL query? In our latest engineering deep dive, we explain how we explored loading Great Lakes tables using DataFusion SQL queries in an effort to increase performance. 🚀 🧊 Read the full post: www.polarsignals.com/blog/posts/2...
@zed.dev is by far the best editor I've ever used. It's the only one that's managed to pry vim from my hands.
This was a fun one! For @polarsignals.com's latest hackathon, I wrote an FSST decompression CUDA kernel and then optimized it by profiling with our new GPU PC sampling feature. www.polarsignals.com/blog/posts/2...
My Journey Optimizing a CUDA Kernel with Polar Signals | Polar Signals
A storage engineer's descent into warp stalls, memory throttles, and aligned stores
polarsignals.com
Ever wondered how a profiler knows which JavaScript function is hot when V8 compiles your code three different ways? Brennan went deep on unwinding and symbolizing V8 stacks across Sparkplug, Maglev, and TurboFan. The detective work behind every flame graph. 🔥 www.polarsignals.com/blog/posts/2...
Profiling Internals: JavaScript on V8 | Polar Signals
How Profilers Work: Part 3
polarsignals.com
🚀 Launching today: GPU PC sampling in production. Instruction-level profiling telling you why and where warps stall. Whether it is memory latency, scoreboard waits, or barriers. 🧊 Previously NSight-only territory. Now running in prod with low overhead. www.polarsignals.com/blog/posts/2...
Open-Source Low-Overhead NVIDIA CUDA PC Sampling | Polar Signals
And how we made it happen
polarsignals.com
New Blog Alert! Learn how we overcame eBPF limits to unwind deeply nested PyTorch training stacks and learned some cools things along the way: www.polarsignals.com/blog/posts/2...
Python Zebra Stacks | Polar Signals
Unwinding Deep PyTorch Training Stacks with eBPF
polarsignals.com
Sure MTTR is important. But have you considered MTTP (mean time to pancake)? It's the only metric my children track 🥞
Rust making me install cronjobs to perform cargo cleans is easily the second dumbest thing about the language (async #1)
🤖Using Polar Signals Cloud and Claude Code to autonomously optimize your code every day! 📈 Also: Check out our new website! What do you think? www.polarsignals.com/blog/posts/2...
Autonomous Optimization with Claude Code | Polar Signals
Optimize your infrastructure autonomously every day with Claude Code and Polar Signals
polarsignals.com
I love going to concerts in the cities because I get to experience how fucking awesome the people of Minneapolis are
I keep saying. Nix is the right idea with the wrong execution
Justin Garrison@justingarrison.com · 3mo agoIt’s been 10 days. I still have no idea what I’m doing. Every layer of nix only gets more confusing
Why can't we have bluesky but for git repos? Stop relying on GitHub to build a reliable service but have a distributed but discoverable service.
We've been working on a major schema migration at @polarsignals.com that has unlocked some pretty wild improvements. Apart from a 50% (!!) reduction in storage size thanks to logical compression in vortex.dev, there has been a dramatic improvement in query performance.
Reading the new large hadron collider particle discovery.
a man in a striped shirt is reading a menu in a restaurant
Alt: Good burger. Reading menu and responding I know some of these words
media.tenor.com
I continue to be proud to be a Minnesotan, embarrassed to be an American
Skye@simplyskye.bsky.social · 5mo agoMar Espinar, Spain’s PSOE deputy, on Isabel Díaz Ayuso’s support for Trump: “Take your mafioso chief of staff, go to Mar-a-Lago, and leave us here — because we are more like the brave ones from Minnesota”
