VOLATILE EVENT INGESTION ROUTING DISPATCH STREAMING UNLEASHED.

To saturate the bandwidth of the next generation of hardware.

$ _ VERY ALPHA - CHILL OUT

# Download and run
curl -fsSL https://bustermq.dev/install.sh | sh
bustermq --host 0.0.0.0 --port 4222

# Or with Docker
docker run -p 4222:4222 bustermq/bustermq

BUILT FOR WHAT YOU BUILD.

From edge devices to planet-scale systems.

Performance →

IoT / Edge millions of devices

Microservices event-driven

Real-time Analytics stream processing

Gaming low-latency sync

Ad Tech real-time bidding

Financial market data feeds

PERFORMANCE. AT THE SPEED OF SILICON.

128 clients. 50M messages. 8 cores. No tricks.

Benchmarks →

BusterMQ 2.3x 230%

NATS (Go) baseline 100%

Redis Streams 29%

AWS Kinesis 4%

Google Pub/Sub 0.8%

DETAILED BENCHMARKS.

Fan-out benchmark: 128 publishers, 10 subscribers each, 50M messages, 128-byte payload.
AMD Ryzen 9 9950X, localhost. More benchmarks incoming.

Metric	Standard	+BusyPoll	+Route	+Route+BusyPoll	Go NATS
Duration	9.510s	9.105s	9.344s	8.448s	19.577s
Pub Rate	5.56M	5.82M	5.66M	6.30M	2.62M
Delivery Rate	52.56M	54.90M	53.20M	58.74M	25.53M
Bandwidth	7.34 GB/s	7.66 GB/s	7.43 GB/s	8.20 GB/s	3.56 GB/s
Fan-out	10.00x	10.00x	9.94x	9.92x	10.00x
p50 Latency	8.48 ms	8.16 ms	6.16 ms	6.58 ms	73.59 ms
p90 Latency	12.78 ms	11.15 ms	9.33 ms	10.26 ms	81.68 ms
p99 Latency	58.25 ms	13.07 ms	18.71 ms	15.66 ms	92.51 ms
p99.9 Latency	65.49 ms	14.33 ms	23.65 ms	20.36 ms	99.05 ms

Standard — Default io_uring

+BusyPoll — Spin-loop mode

+Route — Shard-aware routing

+Route+BusyPoll — Best config

Protocol →

NATS PROTOCOL COMPATIBLE.

Use your existing clients. More features coming.

Drivers →

CORE PROTOCOL

Publish / Subscribe PUB, SUB, UNSUB

Wildcard Subscriptions *, >

Queue Groups load balancing

Request / Reply INBOX pattern

CONNECTORS COMING SOON

Redpanda kafka protocol

VictoriaMetrics metrics sink

gRPC Stream bidirectional

ClickHouse analytics sink

Webhook HTTP POST

CHOOSE YOUR DRIVERS. UNLOCK PERFORMANCE.

We ship native drivers in Go, Rust, and Zig to unlock shard-aware routing and real load balance. Same protocol, real scale.

Go Rust Zig

Backend →

NATS Compatible

PROTO V1

Drop-in compatible with NATS. Use your existing clients and the protocol still works. Nothing breaks, nothing rewrites.

Shard-Aware Drivers RECOMMENDED

GO / RUST / ZIG

But our native drivers unlock shard-aware routing and server-guided load balancing, keeping traffic local and cores evenly fed. That is where the real throughput comes from.

CHOOSE YOUR I/O BACKEND.

Same architecture. Different syscalls. Pick what fits.

Roots →

io_uring RECOMMENDED

--io-backend=io_uring

Kernel-bypass I/O. Zero syscall overhead, batched completions. Linux 5.1+.

Throughput: 6M msg/s Latency: ~8µs

DPDK COMING Q2 2025

--io-backend=dpdk

Full kernel bypass. Userspace networking. Dedicated NIC required.

Throughput: 20M+ msg/s Latency: ~1µs

INSPIRED BY GREATNESS.

Standing on the shoulders of giants.

Next →

TigerBeetle

tigerbeetle.com

Pioneered deterministic simulation testing. We adopted their VOPR approach because finding bugs before production is the only way.

VOPR — Deterministic simulation testing

Redpanda

redpanda.com

Proved that thread-per-core architecture delivers. No locks, no contention, just raw throughput.

thread-per-core — This is the way

ZML

zml.ai

Relentless pursuit of speed. Pushing boundaries, never settling. The mindset that faster is always possible.

performance — No ceiling, only horizons

Zig

ziglang.org

A language for system programming that prioritizes performance and correctness. No hidden allocations, no hidden control flow.

comptime — Zero-cost abstractions done right