goim is a im server writen by golang.
- Light weight
- High performance
- Pure Golang
- Supports single push, multiple push and broadcasting
- Supports one key to multiple subscribers (Configurable maximum subscribers count)
- Supports heartbeats (Application heartbeats, TCP, KeepAlive, HTTP long pulling)
- Supports authentication (Unauthenticated user can't subscribe)
- Supports multiple protocols (WebSocket，TCP，HTTP）
- Scalable architecture (Unlimited dynamic job and logic modules)
- Asynchronous push notification based on Kafka
Protocol:
Websocket: Websocket Client Demo
Android: Android
iOS: iOS
| CPU | Memory | OS | Instance |
|---|---|---|---|
| Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz | DDR3 32GB | Debian GNU/Linux 8 | 1 |
- Online: 1,000,000
- Duration: 15min
- Push Speed: 40/s (broadcast room)
- Push Message: {"test":1}
- Received calc mode: 1s per times, total 30 times
- CPU: 2000%~2300%
- Memory: 14GB
- GC Pause: 504ms
- Network: Incoming(450MBit/s), Outgoing(4.39GBit/s)
- Received: 35,900,000/s
goim is is distributed under the terms of the MIT License.