Our Blog

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

Deterministic Simulation Testing in Rust: A Theater Of State Machines

How we designed our database for complete control over concurrency, time, randomness, and failure injection.

July 8, 2025 | Alfonso Subiotto Marqués

Testing

Deterministic Simulation Testing

Rust

Databases

Distributed Systems

How Continuous Profiling reduces Engineering Debt and increases Application Performance

Application Performance engineering debt could live a long time without noticed and cause a significant overhead in developing new features, performance and the cost of operation.

June 30, 2025 | Batuhan Uslu

Continuous-Profiling

Cloud Cost

Profiling

GPU

New year new database

Bringing what we've learned to our next generation database.

June 18, 2025 | Thor Hansen

Column Database

Databases

Best Laid Plans

What we learned from building a database

June 10, 2025 | Thor Hansen

Column Database

FrostDB

Databases

Design

Latest in Continuous Profiling for GPUs

Attending ai.engineer 2025 in San Francisco

June 4, 2025 | Matthias Loibl, Brennan Vincent

Profiling

Correlation

GPU

Flame Charts: The Time-Aware Sibling of Flame Graphs

A deep dive into the time-aware visualization that complements traditional flame graphs in performance profiling.

May 28, 2025 | Manoj Vivek

Flame Charts

Data Visualization

Performance Analysis

Icicle Graphs

Flame Graphs

Sampling PGO

Exploring how well the various forms of PGO work

May 20, 2025 | Tommy Reilly

Rust

PGO

Profiling

Enhancing Our Writing Workflow: Adding Markdown Support to Sanity CMS

How we added a Markdown editor to our Sanity setup and other improvements

May 15, 2025 | Yomi Eluwande

Sanity

Markdown