Java中的性能

测试代码:

bash package com.company.benchmark;

import com.fasterxml.jackson.databind.JsonNode; import com.company.util.JsonUtil; import org.openjdk.jmh.annotations.*; import org.openjdk.jmh.runner.Runner; import org.openjdk.jmh.runner.RunnerException; import org.openjdk.jmh.runner.options.Options; import org.openjdk.jmh.runner.options.OptionsBuilder;

import java.util.concurrent.TimeUnit;

/** * Created by emacsist on 2017/6/12. */ @BenchmarkMode(Mode.SingleShotTime) @OutputTimeUnit(TimeUnit.NANOSECONDS) @State(Scope.Thread) public class BenchmarkJSON { @Benchmark public void testJSON(){ String json = “{\“id\”:\“1\“,\“user\”:{\“id\”:\“426b466fe00e698a2b718079afff962f\“},\“rule\”:[\“50284\“,\“56415\“,\“56416\“,\“56417\“,\“56418\“,\“56419\“,\“56420\“,\“56421\“,\“56422\“,\“56423\“,\“57034\“,\“57036\“,\“9078\“],\“imp\”:[{\“bidfloor\”:800,\“ext\”:{\“repeat\”:1},\“feed\”:{\“type\”:0},\“id\”:\“25263317556521\“,\“bidfloorcur\”:\“RMB\“,\“tagid\”:\“1000000002\“},{\“bidfloor\”:100000,\“ext\”:{\“repeat\”:1},\“feed\”:{\“type\”:0},\“id\”:\“25263317556522\“,\“bidfloorcur\”:\“RMB\“,\“tagid\”:\“1000000002\“}],\“app\”:{\“name\”:\“weibo\“,\“id\”:\“iamappidinwax\“},\“device\”:{\“geo\”:{},\“carrier\”:\”\“,\“model\”:\“OPPO_OPPO A37t\“,\“ua\”:\“OPPO-OPPO A37tweibo6.11.1androidandroid5.1\“,\“ip\”:\“113.227.98.236\“,\“ext\”:{},\“connectiontype\”:2,\“os\”:\“android\“,\“osv\”:\“5.1\“},\“dealid\”:\“47cd7e122ade3d12e312c5eb6e68bc6e\“,\“at\”:2}“; JsonNode node = JsonUtil.readTree(json); }

public static void main(String[] args) throws RunnerException {
    Options opt = new OptionsBuilder()
            .include(BenchmarkJSON.class.getSimpleName())
            .forks(1)
            .warmupIterations(5)
            .measurementIterations(5)
            .threads(500)
            .build();

    new Runner(opt).run();

}


结果：

bash Percentiles, ns/op: p(0.0000) = 58682.052 ns/op p(50.0000) = 61242.538 ns/op p(90.0000) = 62028.112 ns/op p(95.0000) = 62028.112 ns/op p(99.0000) = 62028.112 ns/op p(99.9000) = 62028.112 ns/op p(99.9900) = 62028.112 ns/op p(99.9990) = 62028.112 ns/op p(99.9999) = 62028.112 ns/op p(100.0000) = 62028.112 ns/op


单线程版本:即将上面的 threads 删除掉:

bash Percentiles, ns/op: p(0.0000) = 346423.000 ns/op p(50.0000) = 663625.000 ns/op p(90.0000) = 749015.000 ns/op p(95.0000) = 749015.000 ns/op p(99.0000) = 749015.000 ns/op p(99.9000) = 749015.000 ns/op p(99.9900) = 749015.000 ns/op p(99.9990) = 749015.000 ns/op p(99.9999) = 749015.000 ns/op p(100.0000) = 749015.000 ns/op


# Golang 中的性能

测试代码:

bash package test

import ( “encoding/json” “testing”

"github.com/pquerna/ffjson/ffjson"
"github.com/company/golang-dsp-bid/bean"

)

func BenchmarkJson(b *testing.B) { j := {"id":"1","user":{"id":"426b466fe00c698a2b718079efff962f"},"rule":["50284","56415","56416","56417","56418","56419","56420","56421","56422","56423","57034","57036","9078"],"imp":[{"bidfloor":100000,"ext":{"repeat":1},"feed":{"type":0},"id":"25263317556521","bidfloorcur":"RMB","tagid":"1000000002"},{"bidfloor":800,"ext":{"repeat":1},"feed":{"type":0},"id":"25263317556522","bidfloorcur":"RMB","tagid":"1000000002"}],"app":{"name":"weibo","id":"iamappidinwax"},"device":{"geo":{},"carrier":"","model":"OPPO_OPPO A37t","ua":"OPPO-OPPO A37t__weibo__6.11.1__android__android5.1","ip":"1.1.1.1","ext":{},"connectiontype":2,"os":"android","osv":"5.1"},"dealid":"47cd7e122ade3d12e312c5eb6e68bc6e","at":2} for i := 0; i < b.N; i++ { var bidRequest bean.BidRequest e := json.Unmarshal([]byte(j), &bidRequest) if e != nil { panic(e) } } }

func BenchmarkFFJsonFast(b *testing.B) { j := {"id":"1","user":{"id":"426b466fe00c698a2b718079efff962f"},"rule":["50284","56415","56416","56417","56418","56419","56420","56421","56422","56423","57034","57036","9078"],"imp":[{"bidfloor":100000,"ext":{"repeat":1},"feed":{"type":0},"id":"25263317556521","bidfloorcur":"RMB","tagid":"1000000002"},{"bidfloor":800,"ext":{"repeat":1},"feed":{"type":0},"id":"25263317556522","bidfloorcur":"RMB","tagid":"1000000002"}],"app":{"name":"weibo","id":"iamappidinwax"},"device":{"geo":{},"carrier":"","model":"OPPO_OPPO A37t","ua":"OPPO-OPPO A37t__weibo__6.11.1__android__android5.1","ip":"1.1.1.1","ext":{},"connectiontype":2,"os":"android","osv":"5.1"},"dealid":"47cd7e122ade3d12e312c5eb6e68bc6e","at":2}

for i := 0; i < b.N; i++ {
    var bidRequest bean.BidRequest
    e := ffjson.UnmarshalFast([]byte(j), &bidRequest)
    if e != nil {
        panic(e)
    }
}

}

func BenchmarkFFJson(b *testing.B) { j := {"id":"1","user":{"id":"426b466fe00c698a2b718079efff962f"},"rule":["50284","56415","56416","56417","56418","56419","56420","56421","56422","56423","57034","57036","9078"],"imp":[{"bidfloor":100000,"ext":{"repeat":1},"feed":{"type":0},"id":"25263317556521","bidfloorcur":"RMB","tagid":"1000000002"},{"bidfloor":800,"ext":{"repeat":1},"feed":{"type":0},"id":"25263317556522","bidfloorcur":"RMB","tagid":"1000000002"}],"app":{"name":"weibo","id":"iamappidinwax"},"device":{"geo":{},"carrier":"","model":"OPPO_OPPO A37t","ua":"OPPO-OPPO A37t__weibo__6.11.1__android__android5.1","ip":"1.1.1.1","ext":{},"connectiontype":2,"os":"android","osv":"5.1"},"dealid":"47cd7e122ade3d12e312c5eb6e68bc6e","at":2} for i := 0; i < b.N; i++ { var bidRequest bean.BidRequest e := ffjson.Unmarshal([]byte(j), &bidRequest) if e != nil { panic(e) } } }

````

结果:

[15:38:13] emacsist:test git:(master*) $ go test -v  -bench=.
BenchmarkJson-4         	   50000	     31739 ns/op
BenchmarkFFJsonFast-4   	  100000	     21533 ns/op
BenchmarkFFJson-4       	  100000	     21390 ns/op
PASS
ok  	github.com/company/golang-dsp-bid/test	6.682s

DSP系统中JSON解析性能对比Java 与 Golang

Contents

Java中的性能