github.com/polarismesh/polaris@v1.17.8/common/srand/scalable_rand_test.go (about)

     1  /**
     2   * Tencent is pleased to support the open source community by making Polaris available.
     3   *
     4   * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
     5   *
     6   * Licensed under the BSD 3-Clause License (the "License");
     7   * you may not use this file except in compliance with the License.
     8   * You may obtain a copy of the License at
     9   *
    10   * https://opensource.org/licenses/BSD-3-Clause
    11   *
    12   * Unless required by applicable law or agreed to in writing, software distributed
    13   * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
    14   * CONDITIONS OF ANY KIND, either express or implied. See the License for the
    15   * specific language governing permissions and limitations under the License.
    16   */
    17  
    18  package srand
    19  
    20  import (
    21  	"math/rand"
    22  	"testing"
    23  )
    24  
    25  func BenchmarkSingleCore(b *testing.B) {
    26  
    27  	b.Run("scalable_rand-Intn()", func(b *testing.B) {
    28  		for i := 0; i < b.N; i++ {
    29  			_ = Intn(1000)
    30  		}
    31  	})
    32  
    33  	b.Run("math/rand-Intn()", func(b *testing.B) {
    34  		for i := 0; i < b.N; i++ {
    35  			_ = rand.Intn(1000)
    36  		}
    37  	})
    38  
    39  }
    40  
    41  func BenchmarkMultipleCore(b *testing.B) {
    42  
    43  	b.Run("scalable_rand-Intn()", func(b *testing.B) {
    44  		b.RunParallel(func(pb *testing.PB) {
    45  			for pb.Next() {
    46  				_ = Intn(1000)
    47  			}
    48  		})
    49  	})
    50  
    51  	b.Run("math/rand-Intn()", func(b *testing.B) {
    52  		b.RunParallel(func(pb *testing.PB) {
    53  			for pb.Next() {
    54  				_ = rand.Intn(1000)
    55  			}
    56  		})
    57  	})
    58  
    59  }