Top 5 Go Hashmap Projects

hashmap

8 1,713 2.9 Go

A Golang lock-free thread-safe HashMap optimized for fastest read access.
haxmap

7 832 3.3 Go

Fastest and most memory efficient golang concurrent hashmap
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
algorithms

0 764 0.0 Go

CLRS study. Codes are written with golang. (by shady831213)
swiss

3 660 4.4 Go

Golang port of Abseil's SwissTable

Project mention: One Billion Row Challenge in Golang - From 95s to 1.96s | dev.to | 2024-03-17

Time to deal with the large elephant in the room, the runtime.mapaccess2_fast64 map lookup. Despite spending some hours of research, I couldn't found any viable way to optimize the builtin map. However, there is a community alternative called Swiss Map, which sells itself as faster and more memory efficient than the builtin one. Replacing it is almost a drop-in, with just some syntax changes:

go-evmap

1 9 0.0 Go

A Go implementation of Rust's evmap which optimizes for high-read, low-write workloads and uses eventual consistency to ensure that readers and writers never block each other.
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).