英文:
Running golang tests on heroku
问题
我大致按照这些说明将我的应用部署到了Heroku上，一切都运行良好。
我有一些基准测试，我想在Heroku上运行它们，以测试本地机器和Heroku服务器之间的性能差异。不幸的是，我无法找到如何运行它们（Heroku找不到Go可执行文件）。这个有可能吗？
谢谢！
英文:
I more or less followed these instructions to deploy my app to heroku. Everything works well.
http://mmcgrana.github.io/2012/09/getting-started-with-go-on-heroku.html
I've got some benchmarking tests that I'd like to run on heroku to test whether or not there's a difference in performance between my local machine and the heroku box. Unfortunately I can't figure out how to run them (heroku can't find the go executable). Is it possible to do this?
Thanks!
答案1
得分: 1
我还没有使用过Heroku。可能是Heroku在使用go test命令运行基准测试时出现了问题，可能是临时目录有问题。
尝试在程序中运行基准测试。例如：
package main
import (
"fmt"
"math"
"testing"
)
// 要进行基准测试的函数
func Area(r float64) float64 {
return math.Pi * r * r
}
// 基准测试函数
func BenchmarkArea(b *testing.B) {
r := 42.0
for i := 0; i < b.N; i++ {
_ = Area(r)
}
}
func main() {
br := testing.Benchmark(BenchmarkArea)
fmt.Println(br.String() + br.MemString())
}
输出结果：
2000000000 1.21 ns/op 0 B/op 0 allocs/op
你可以尝试在本地运行这个程序进行基准测试。
参考链接：
英文:
I haven't used Heroku. It's possible that Heroku has a problem running a benchmark using the go test command; there may be a problem with the temporary directory.
> Command go
>
> Test packages
>
> 'Go test' recompiles each package along with any files with names
> matching the file pattern "*test.go". Files whose names begin with
> "" (including "_test.go") or "." are ignored. These additional files
> can contain test functions, benchmark functions, and example
> functions. See 'go help testfunc' for more. Each listed package causes
> the execution of a separate test binary.
>
> The package is built in a temporary directory so it does not interfere
> with the non-test installation.
Try running the benchmark tests in a program. For example,
package main
import (
"fmt"
"math"
"testing"
)
// a function to be benchmarked
func Area(r float64) float64 {
return math.Pi * r * r
}
// benchmark function
func BenchmarkArea(b *testing.B) {
r := 42.0
for i := 0; i < b.N; i++ {
_ = Area(r)
}
}
func main() {
br := testing.Benchmark(BenchmarkArea)
fmt.Println(br.String() + br.MemString())
}
Output:
2000000000 1.21 ns/op 0 B/op 0 allocs/op
> Package testing
>
> func Benchmark
>
> func Benchmark(f func(b *B)) BenchmarkResult
>
> Benchmark benchmarks a single function. Useful for creating custom
> benchmarks that do not use the "go test" command.
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