Our Blog

Welcome to the Polar Signals blog where we write about profiling, performance, and company culture.

Our new and faster profiler dashboard

Learn more about our new and improved profiler dashboard and how we made the switch from SVG to Canvas

July 14, 2026 | Yomi Eluwande, Manoj Vivek

Profiling

Data Visualization

Flame Graphs

Loading Lakes

Optimizing loading Great Lake tables with DataFusion

July 7, 2026 | Thor Hansen

Delta Lake

Databases

Datafusion

Iteratively explore your flame graphs with the MCP sandwich tool

Don't bloat your LLM's context. Let it iteratively explore the parts of your flame graphs that actually matter.

June 30, 2026 | Matthias Loibl

Performance Analysis

Performance

Observability

MCP

My Journey Optimizing a CUDA Kernel with Polar Signals

A storage engineer's descent into warp stalls, memory throttles, and aligned stores

June 24, 2026 | Alfonso Subiotto Marqués

GPU

Databases

Vortex

Profiling Internals: JavaScript on V8

How Profilers Work: Part 3

June 18, 2026 | Brennan Vincent

JavaScript

Node.Js

Parca Agent

Open-Source Low-Overhead NVIDIA CUDA PC Sampling

And how we made it happen

June 10, 2026 | Tommy Reilly

GPU

Profiling

NVIDIA

CUDA

Python Zebra Stacks

Unwinding Deep PyTorch Training Stacks with eBPF

May 20, 2026 | Tommy Reilly

GPU

PyTorch

profiling

Python

Autonomous Optimization with Claude Code

Optimize your infrastructure autonomously every day with Claude Code and Polar Signals

May 6, 2026 | Frederic Branczyk

Claude Code

Profiling