# PSRT - industrial Pub/Sub for WAN
<img src="https://raw.githubusercontent.com/alttch/psrt/main/psrt-logo.png"
width="100" />
## What is PSRT
PSRT is a pub/sub real-time telemetry protocol, optimized for industrial needs:
providing low latency, dealing with slow channels and large payloads.
PSRT can process 100K+ messages on a single node with very low latencies
(<1ms). Speeds are reasonable (1K+ ops/sec) even with enormous (1MB+) payloads.
Topic subscriptions in PSRT are processed with B-tree algorithms, which allows
the server to handle hundred thousands subscriptions without any speed
loss.
## Technical documentation
<https://info.bma.ai/en/actual/psrt/>
## About the authors
[Bohemia Automation](https://www.bohemia-automation.com) /
[Altertech](https://www.altertech.com) is a group of companies with 15+ years
of experience in the enterprise automation and industrial IoT. Our setups
include power plants, factories and urban infrastructure. Largest of them have
1M+ sensors and controlled devices and the bar raises higher and higher every
day.
