Benchmarking my Golang webserver

Question

I am looking for some tools or the Go tests package to run some benchmarks on different servers. Any idea how i get some nice profiling output in my console. Is it possible to simulate multiple users visiting the server?

getting no output at from this testing code

package tests

import(
 "testing"
 )


func BenchmarkMyFunc(b *testing.B) {
  for i := 0; i < b.N; i++ {
   testplus()
  }
}

func testplus() int {
 x := 1
 return x + 1
}

thank you

Whatever solution you end up using, be aware of http://blogs.perl.org/users/steffen_mueller/2010/09/your-benchmarks-suck.html, mentioned in https://groups.google.com/forum/#!topic/golang-nuts/Y2zj01FGUK0 — VonC, Jul 19 '14 at 19:56
and you have replaced RE with an actual regular expression? E.g. `go test -bench=.` if you want to run all tests or `go test -bench=MyFunc` for example? — tux21b, Jul 19 '14 at 20:11

score 6 · Accepted Answer · answered Jul 20 '14 at 00:15

Use Go's built-in profiling tools, or convenience wrappers around them: http://dave.cheney.net/2013/07/07/introducing-profile-super-simple-profiling-for-go-programs

... and then hit the application with a decent HTTP load testing tool to generate load: https://github.com/wg/wrk

Note that:

Profiling will show you what to actually optimize, but don't go overboard.
HTTP load testing results are only applicable to your application and machine combination
In many cases, you may be restricted by your networking stack configuration.

You can also include benchmarks in your test code, noting that these are typically useful for benchmarking algorithms/comparing approaches rather than whole-of-application performance.

Benchmarking my Golang webserver

1 Answers1