Experiments to benchmark implementations of a concurrent counter in Go.
Such a counter is useful to export telemetry. See Prometheus as an example for a powerful monitoring system.
You can configure concurrency and other parameters in the
benchmark_test.go file directly.
To run the benchmarks with different values for GOMAXPROCS:
go test -bench . -benchmem -cpu 1,2,4,8,16
Example output:
BenchmarkMutexCounterInc 20000000 114 ns/op
BenchmarkMutexCounterInc-2 5000000 321 ns/op
BenchmarkMutexCounterInc-4 5000000 376 ns/op
BenchmarkMutexCounterInc-8 2000000 547 ns/op
BenchmarkMutexCounterInc-16 2000000 603 ns/op
BenchmarkMutexCounterAdd 20000000 114 ns/op
BenchmarkMutexCounterAdd-2 5000000 328 ns/op
BenchmarkMutexCounterAdd-4 5000000 376 ns/op
BenchmarkMutexCounterAdd-8 5000000 349 ns/op
BenchmarkMutexCounterAdd-16 5000000 427 ns/op
BenchmarkRWMutexCounterInc 10000000 130 ns/op
BenchmarkRWMutexCounterInc-2 3000000 453 ns/op
BenchmarkRWMutexCounterInc-4 3000000 493 ns/op
BenchmarkRWMutexCounterInc-8 3000000 664 ns/op
BenchmarkRWMutexCounterInc-16 2000000 709 ns/op
BenchmarkRWMutexCounterAdd 10000000 131 ns/op
BenchmarkRWMutexCounterAdd-2 3000000 426 ns/op
BenchmarkRWMutexCounterAdd-4 3000000 524 ns/op
BenchmarkRWMutexCounterAdd-8 2000000 690 ns/op
BenchmarkRWMutexCounterAdd-16 2000000 648 ns/op
BenchmarkAtomicIntCounterInc 100000000 10.5 ns/op
BenchmarkAtomicIntCounterInc-2 30000000 37.7 ns/op
BenchmarkAtomicIntCounterInc-4 50000000 39.5 ns/op
BenchmarkAtomicIntCounterInc-8 50000000 33.6 ns/op
BenchmarkAtomicIntCounterInc-16 50000000 34.5 ns/op
BenchmarkAtomicIntCounterAdd 100000000 10.6 ns/op
BenchmarkAtomicIntCounterAdd-2 50000000 37.2 ns/op
BenchmarkAtomicIntCounterAdd-4 50000000 36.4 ns/op
BenchmarkAtomicIntCounterAdd-8 50000000 35.0 ns/op
BenchmarkAtomicIntCounterAdd-16 50000000 35.3 ns/op
BenchmarkAtomicSpinningCounterInc 100000000 16.5 ns/op
BenchmarkAtomicSpinningCounterInc-2 20000000 68.8 ns/op
BenchmarkAtomicSpinningCounterInc-4 20000000 118 ns/op
BenchmarkAtomicSpinningCounterInc-8 10000000 180 ns/op
BenchmarkAtomicSpinningCounterInc-16 10000000 175 ns/op
BenchmarkAtomicSpinningCounterAdd 100000000 16.6 ns/op
BenchmarkAtomicSpinningCounterAdd-2 20000000 68.7 ns/op
BenchmarkAtomicSpinningCounterAdd-4 20000000 119 ns/op
BenchmarkAtomicSpinningCounterAdd-8 10000000 179 ns/op
BenchmarkAtomicSpinningCounterAdd-16 10000000 177 ns/op
BenchmarkChannelCounterInc 20000000 73.3 ns/op
BenchmarkChannelCounterInc-2 10000000 164 ns/op
BenchmarkChannelCounterInc-4 5000000 333 ns/op
BenchmarkChannelCounterInc-8 3000000 463 ns/op
BenchmarkChannelCounterInc-16 3000000 472 ns/op
BenchmarkChannelCounterAdd 20000000 73.3 ns/op
BenchmarkChannelCounterAdd-2 10000000 152 ns/op
BenchmarkChannelCounterAdd-4 5000000 290 ns/op
BenchmarkChannelCounterAdd-8 3000000 473 ns/op
BenchmarkChannelCounterAdd-16 3000000 476 ns/op