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| package main
import ( "math/rand" "sync" "testing" "time" )
var m map[int]string var lock sync.RWMutex func init(){ rand.Seed(time.Now().Unix()) m:=make(map[int]string,100000) for i:=0;i<100000;i++{ m[i] = "helloworld" } } func Benchmark1(b *testing.B) { for i := 0; i < b.N; i++ { _ = m[rand.Int()%100000] } }
func Benchmark2(b *testing.B) { for i := 0; i < b.N; i++ { lock.RLock() _ = m[rand.Int()%100000] lock.RUnlock() } }
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