github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/workload/workloadimpl/random_test.go (about)

     1  // Copyright 2019 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 workloadimpl_test
    12  
    13  import (
    14  	"testing"
    15  
    16  	"github.com/cockroachdb/cockroach/pkg/util/timeutil"
    17  	"github.com/cockroachdb/cockroach/pkg/workload/workloadimpl"
    18  	"golang.org/x/exp/rand"
    19  )
    20  
    21  func BenchmarkRandStringFast(b *testing.B) {
    22  	const strLen = 26
    23  	rng := rand.NewSource(uint64(timeutil.Now().UnixNano()))
    24  	buf := make([]byte, strLen)
    25  
    26  	for i := 0; i < b.N; i++ {
    27  		workloadimpl.RandStringFast(rng, buf, `0123456789abcdefghijklmnopqrstuvwxyz`)
    28  	}
    29  	b.SetBytes(strLen)
    30  }