Discover Microsoft Garnet: A High‑Performance Redis Alternative and How to Deploy It

What is Garnet

Microsoft recently open‑sourced Garnet, a cache storage system built from scratch in C# that emphasizes performance, especially thread scalability and low‑latency operation.

Garnet outperforms Redis because it is optimized for modern multi‑core processors and high‑speed networks, providing higher throughput and lower latency while efficiently using processor caches.

Installation

Garnet is currently distributed only as a NuGet package; the author has built an x86 Docker image and uploaded it to Docker Hub.

docker run -p 3278:3278 -d pig4cloud/garnet:latest

Testing the Server

Use the standard redis-cli client to connect; Garnet is compatible with the Redis protocol.

redis-cli -p 3278
info
# Server information output (excerpt)
garnet_version:1.0.0
garnet_mode:standalone
...

Basic commands:

set k1 v1
OK
get k1
"v1"

Supported Command Categories

BITMAP

CLUSTER

CONNECTION

FUNCTIONS

GENERIC

GEO

HASH

HYPERLOGLOG

KEYS

LIST

PUB/SUB

SCRIPTING

SERVER

SET

SORTED SET

STREAM

STRING

TRANSACTIONS

Java Project as a Redis Replacement

In the PIG microservice platform, simply change the Redis configuration to point to the Garnet server; the existing spring-boot-starter-data-redis (Lettuce) driver remains unchanged.

Example Key Listing

keys *
1) "k1"
2) "client:details::pig"
3) "menu_details::1"
4) "menu_details::2"
5) "user_details::admin"
...

Conclusion

The official statement says that any existing application using Redis, KeyDB, or Dragonfly as a cache can switch to Garnet to achieve higher throughput, lower latency, reduced shard management costs, and optional overflow to local disk or SSD for data exceeding memory size. Garnet is also suitable for new applications that need an ultra‑high‑performance cache layer to improve performance and lower backend storage costs.

References

Garnet: https://github.com/microsoft/garnet

PIG Microservice Platform: https://gitee.com/log4j/pig