benchmark for logging

run

run by main.go

go run main.go

run by benchmark

The lines of logging file is not equal to b.N. All logging library save the duplication logging when using benchmark.

go test -bench=.

some tips

Two type of io.Writer for Out in logrus. The first one is write to Out directly. The second one is adding the cache for Out, like bufio.Writer.

We could see the result for this two benchmark, performance have big improvement: 13.465µs vs 4.81µs for per operation.

result

logrus count:1000000, time_used: 13.465060626s, time_per_op: 13.465µs logrusOutputBufio() - logrus count:1000000, time_used: 4.810216561s, time_per_op: 4.81µs logrus parallel count:1000000, time_used: 16.971633791s, time_per_op: 16.971µs zerolog count:1000000, time_used: 9.131216964s, time_per_op: 9.131µs uber zap count:1000000, time_used: 13.219052873s, time_per_op: 13.219µs stdlog count:1000000, time_used: 9.053266913s, time_per_op: 9.053µs