cyub / ringbuffer

Lock-free ring buffer in Go, support SPSC/SPMC/MPSC/MPMC implementations.

ringbuffer

Lock-free ring buffer in Go, support SPSC/SPMC/MPSC/MPMC implementations.

• SPSC - Single Producer/Single Consumer
• SPMC - Single Producer/Multi-Consumer
• MPSC - Multi-Producer/Single Consumer
• MPMC - Multi-Producer/Multi-Consumer

Features

• Lock-free operations - they succeed or fail immediately without blocking or waiting.
• Thread-safe direct access to the internal ring buffer memory.
• Support SPSC/SPMC/MPSC/MPMC implementations. You can choose the best performing implementation based on your business scenario

Benchmark

Machine information for benchmarks:

Apple M1 Pro 8 core

MPMC ringbuffer vs channel

go test  -benchmem -run=^$ -bench="^BenchmarkRingMPMC|BenchmarkChanMPMC$" . github.com/cyub/ringbuffer

goos: darwin
goarch: arm64
pkg: github.com/cyub/ringbuffer
BenchmarkRingMPMC/100P100C-8         	12364594	        95.92 ns/op	       7 B/op	       0 allocs/op
BenchmarkRingMPMC/4P4C_1CPU-8        	36860979	        28.96 ns/op	       8 B/op	       1 allocs/op
BenchmarkChanMPMC/100P100C-8         	 9417372	       110.0 ns/op	       7 B/op	       0 allocs/op
BenchmarkChanMPMC/4P4C_1CPU-8        	31175139	        36.84 ns/op	       8 B/op	       1 allocs/op
PASS
ok  	github.com/cyub/ringbuffer	4.899s

MPSC ringbuffer vs channel

go test  -benchmem -run=^$ -bench="^BenchmarkRingMPSC|BenchmarkChanMPSC$" . github.com/cyub/ringbuffer

goos: darwin
goarch: arm64
pkg: github.com/cyub/ringbuffer
BenchmarkRingMPSC/100P1C-8         	13354032	        88.34 ns/op	       8 B/op	       1 allocs/op
BenchmarkRingMPSC/4P1C_1CPU-8      	38775084	        29.59 ns/op	       8 B/op	       1 allocs/op
BenchmarkChanMPSC/100P1C-8         	12371011	       104.6 ns/op	       8 B/op	       1 allocs/op
BenchmarkChanMPSC/4P1C_1CPU-8      	28364574	        38.06 ns/op	       8 B/op	       1 allocs/op
PASS
ok  	github.com/cyub/ringbuffer	5.113s

SPMC ringbuffer vs channel

go test  -benchmem -run=^$ -bench="^BenchmarkRingSPMC|BenchmarkChanSPMC$" . github.com/cyub/ringbuffer

goos: darwin
goarch: arm64
pkg: github.com/cyub/ringbuffer
BenchmarkRingSPMC/1P100C-8         	15812037	        76.08 ns/op	       7 B/op	       0 allocs/op
BenchmarkRingSPMC/1P4C_1CPU-8      	52281694	        20.65 ns/op	       8 B/op	       1 allocs/op
BenchmarkChanSPMC/1P100C-8         	 4912020	       437.0 ns/op	       7 B/op	       0 allocs/op
BenchmarkChanSPMC/1P4C_1CPU-8      	29503178	        36.53 ns/op	       8 B/op	       1 allocs/op
PASS
ok  	github.com/cyub/ringbuffer	6.033s

SPSC ringbuffer vs channel

go test  -benchmem -run=^$ -bench="^BenchmarkRingSPSC|BenchmarkChanSPSC$" . github.com/cyub/ringbuffer

goos: darwin
goarch: arm64
pkg: github.com/cyub/ringbuffer
BenchmarkRingSPSC/1P1C-8         	16629625	        68.52 ns/op	       7 B/op	       0 allocs/op
BenchmarkRingSPSC/1P1C_1CPU-8    	44770410	        24.89 ns/op	       8 B/op	       1 allocs/op
BenchmarkChanSPSC/1P1C-8         	 8335009	       286.3 ns/op	       7 B/op	       0 allocs/op
BenchmarkChanSPSC/1P1C_1CPU-8    	31815259	        36.12 ns/op	       8 B/op	       1 allocs/op
PASS
ok  	github.com/cyub/ringbuffer	6.204s