github.com/cloudwego/hertz@v0.9.3/pkg/common/stackless/func_timing_test.go (about)

     1  /*
     2   * Copyright 2022 CloudWeGo Authors
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   * The MIT License (MIT)
    17   *
    18   * Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
    19   *
    20   * Permission is hereby granted, free of charge, to any person obtaining a copy
    21   * of this software and associated documentation files (the "Software"), to deal
    22   * in the Software without restriction, including without limitation the rights
    23   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    24   * copies of the Software, and to permit persons to whom the Software is
    25   * furnished to do so, subject to the following conditions:
    26   *
    27   * The above copyright notice and this permission notice shall be included in
    28   * all copies or substantial portions of the Software.
    29   *
    30   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    31   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    32   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    33   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    34   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    35   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    36   * THE SOFTWARE.
    37   *
    38   * This file may have been modified by CloudWeGo authors. All CloudWeGo
    39   * Modifications are Copyright 2022 CloudWeGo Authors.
    40   */
    41  
    42  package stackless
    43  
    44  import (
    45  	"sync/atomic"
    46  	"testing"
    47  )
    48  
    49  func BenchmarkFuncOverhead(b *testing.B) {
    50  	var n uint64
    51  	f := NewFunc(func(ctx interface{}) {
    52  		atomic.AddUint64(&n, *(ctx.(*uint64)))
    53  	})
    54  	b.RunParallel(func(pb *testing.PB) {
    55  		x := uint64(1)
    56  		for pb.Next() {
    57  			if !f(&x) {
    58  				b.Fatalf("f mustn't return false")
    59  			}
    60  		}
    61  	})
    62  	if n != uint64(b.N) {
    63  		b.Fatalf("unexpected n: %d. Expecting %d", n, b.N)
    64  	}
    65  }
    66  
    67  func BenchmarkFuncPure(b *testing.B) {
    68  	var n uint64
    69  	f := func(x *uint64) {
    70  		atomic.AddUint64(&n, *x)
    71  	}
    72  	b.RunParallel(func(pb *testing.PB) {
    73  		x := uint64(1)
    74  		for pb.Next() {
    75  			f(&x)
    76  		}
    77  	})
    78  	if n != uint64(b.N) {
    79  		b.Fatalf("unexpected n: %d. Expecting %d", n, b.N)
    80  	}
    81  }