panjf2000/ants

Health v2 · maintenance only

Adoption not part of the score

14510 stars · 1438 forks observed · 2026-09-24

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

ants is a high-performance goroutine pool library for Go that manages and recycles a massive number of goroutines with a fixed-capacity pool. It helps developers limit concurrency, handle panics gracefully, and reduce memory overhead in concurrent programs.

Use cases

• limit the number of goroutines in a Go program
• reuse goroutines to reduce memory allocation overhead
• submit tasks to a fixed-capacity worker pool
• gracefully recover from panics in concurrent task execution
• dynamically tune pool capacity at runtime
• process large batches of jobs with bounded concurrency

When to choose

• your Go application spawns huge numbers of short-lived goroutines and suffers memory pressure
• you need bounded concurrency with a simple, battle-tested API
• you want panic-safe task execution without crashing the process

When to avoid

• your workload has few long-running goroutines where pooling adds little value
• you need full-featured job queues with persistence or distributed scheduling
• you are not programming in Go

Facets

library · maturity stable

concurrency developer-tools developer-tools performance backend go cross-platform goroutine-pool worker-pool task-scheduling high-concurrency

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