github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/util/stringarena/arena_test.go (about)

     1  // Copyright 2018 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  package stringarena
    12  
    13  import (
    14  	"context"
    15  	"fmt"
    16  	"testing"
    17  )
    18  
    19  func BenchmarkStringArena(b *testing.B) {
    20  	const count = 1024
    21  	vals := make([][]byte, count)
    22  	for i := range vals {
    23  		vals[i] = []byte(fmt.Sprint(i))
    24  	}
    25  
    26  	b.Run("arena", func(b *testing.B) {
    27  		a := Make(nil /* acc */)
    28  		m := make([]string, count)
    29  
    30  		for i := 0; i < b.N; i++ {
    31  			j := i % count
    32  			s, err := a.AllocBytes(context.Background(), vals[j])
    33  			if err != nil {
    34  				b.Fatal(err)
    35  			}
    36  			m[j] = s
    37  		}
    38  	})
    39  
    40  	b.Run("noarena", func(b *testing.B) {
    41  		m := make([]string, count)
    42  
    43  		for i := 0; i < b.N; i++ {
    44  			j := i % count
    45  			m[j] = string(vals[j])
    46  		}
    47  	})
    48  }