Polar Signals Blog

Polar Signals Cloud is an always-on, zero-instrumentation continuous profiling for CPU, GPU, and Memory that helps improve performance, understand incidents, and lower infrastructure costs.

Popular posts: 4
Total points: 525
HN comments: 139
Rank: #2,587 company

Visit polarsignals.com → On Hacker News May 2022 – Nov 2025

Systems & Performance 2 Infrastructure & DevOps 2 Web & Frontend 1 Software Engineering 1 Programming Languages 1 Databases & Data 1

Most points Most discussed Most cited Newest

A Walk with LuaJIT

2024152 points26 comments Systems & Performance details

How we scrape callstack information from the LuaJIT engine for profiling

DWARF-Based Stack Walking Using eBPF

2022140 points66 commentscited by 3Systems & Performance details

Deep dive into the new DWARF-based stack unwinder using eBPF.

Introducing ArcticDB: A Database for Observability

2022126 points31 comments Databases & Data details

Continuous profiling needed a columnar database, so we built it.

How devtools map minified JS code back to your TypeScript source code

2025107 points16 comments Web & Frontend details

A deep dive into how JavaScript source maps work under the hood, with examples showing how all the pieces fit together.