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Dev tools · October 10, 2021

Parca

Open-source infrastructure-wide continuous profiling

Parca launched on October 10, 2021 with 75 votes, #808 of 2,933 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 5 years on.

What it does

Parca is a continuous profiling project for applications and infrastructure. It helps you save money, improve performance and understand incidents better.

Open Source infrastructure-wide continuous profiling

You never know at which point in time you are going to need profiling data, so always collect it at low overhead. Many organizations have 20-30% of resources wasted in easily optimized code paths. The Parca Agent aims to lower the bar of starting to profile by requiring zero-instrumentation for the whole infrastructure. Deploy in your infrastructure and get started! Using profiling data collected over time, Parca can (with confidence and statistical significance) determine hot paths to optimize. Additionally, it can show differences between any query, such as comparing versions of software or any other dimension. Profiling data provides unique insight and depth into what code a process…from parca.dev

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