# DataDog/glommio

Glommio is a thread-per-core crate that makes writing highly parallel asynchronous applications in a thread-per-core architecture easier for rustaceans.

Repository: https://github.com/DataDog/glommio
Canonical: https://ross.abutalabs.com/products/glommio
Language: Rust
License: NOASSERTION
License Family: other
Topics: rust, linux, thread-per-core, iouring, async
Last push: 2026-04-22T17:15:21+00:00

## Health v2 (maintenance only)
Score: 58/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 78, release rhythm 8, longevity 100
- inputs: {"age_days": 2191, "days_push": 133, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3642, forks 193 (observed 2026-08-28T04:08:12.849651+00:00)

## What it is
Glommio is a Rust async runtime crate implementing a cooperative thread-per-core architecture built on Linux io_uring. It lets developers write highly parallel asynchronous applications without helper threads.

## Use cases
- write async Rust applications with a thread-per-core architecture
- build high-performance network services on Linux with io_uring
- avoid multi-threaded executor overhead in latency-sensitive servers
- run async tasks pinned to individual CPU cores
- build highly parallel async applications without helper threads

## When to choose
- you target Linux 5.8+ and want io_uring-based async I/O
- you want a thread-per-core design to eliminate cross-thread synchronization
- you need a cooperative async runtime tuned for multi-core parallelism

## When to avoid
- you need cross-platform support beyond Linux
- your kernel is older than 5.8 or lacks io_uring support
- you need a general-purpose multi-threaded async runtime like Tokio

## Facets
- artifact type: library
- maturity: active
- function: concurrency, http-server, developer-tools
- domain: developer-tools, performance, microservices
- platform: rust
- tags: thread-per-core, io-uring, async-runtime, rust, linux

## Member repositories
- DataDog/glommio (main) score 58

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:12.849651+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:31:46.819549+00:00, confidence not recorded.
  - readme: https://github.com/DataDog/glommio (fetched 2026-08-28T04:08:12.849651+00:00, sha aa5c35ebd8fb)
  - registry_crates: https://crates.io/api/v1/crates/glommio (fetched 2026-08-29T09:26:05.066810+00:00, sha f1c2d4facaa6)
- Data as of 2026-08-30T08:39:29.467469+00:00.