blob: ed90a7784161b9a0d99226b5b7287e1bfb6a899c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main_test
import (
"internal/testenv"
"os/exec"
"testing"
)
// BenchmarkExecGoEnv measures how long it takes for 'go env GOARCH' to run.
// Since 'go' is executed, remember to run 'go install cmd/go' before running
// the benchmark if any changes were done.
func BenchmarkExecGoEnv(b *testing.B) {
testenv.MustHaveExec(b)
b.StopTimer()
gotool, err := testenv.GoTool()
if err != nil {
b.Fatal(err)
}
for i := 0; i < b.N; i++ {
cmd := exec.Command(gotool, "env", "GOARCH")
b.StartTimer()
err := cmd.Run()
b.StopTimer()
if err != nil {
b.Fatal(err)
}
}
}
|
