| // Copyright 2021 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. |
| |
| // Binary bench provides a unified wrapper around the different types of |
| // benchmarks in x/benchmarks. |
| // |
| // Benchmarks are run against the toolchain in GOROOT, and optionally an |
| // additional baseline toolchain in BENCH_BASELINE_GOROOT. |
| package main |
| |
| import ( |
| "flag" |
| "fmt" |
| "log" |
| "os" |
| "os/exec" |
| "path/filepath" |
| "strings" |
| ) |
| |
| var wait = flag.Bool("wait", true, "wait for system idle before starting benchmarking") |
| |
| func determineGOROOT() (string, error) { |
| g, ok := os.LookupEnv("GOROOT") |
| if ok { |
| return g, nil |
| } |
| |
| cmd := exec.Command("go", "env", "GOROOT") |
| b, err := cmd.Output() |
| if err != nil { |
| return "", err |
| } |
| return strings.TrimSpace(string(b)), nil |
| } |
| |
| func goCommand(goroot string, args ...string) *exec.Cmd { |
| bin := filepath.Join(goroot, "bin/go") |
| cmd := exec.Command(bin, args...) |
| return cmd |
| } |
| |
| func run(goroot string) error { |
| log.Printf("GOROOT under test: %s", goroot) |
| |
| pass := true |
| |
| if err := goTest(goroot); err != nil { |
| pass = false |
| log.Printf("Error running Go tests: %v", err) |
| } |
| |
| if err := bent(goroot); err != nil { |
| pass = false |
| log.Printf("Error running bent: %v", err) |
| } |
| |
| if !pass { |
| return fmt.Errorf("benchmarks failed") |
| } |
| return nil |
| } |
| |
| func main() { |
| flag.Parse() |
| |
| if *wait { |
| // We may be on a freshly booted VM. Wait for boot tasks to |
| // complete before continuing. |
| if err := waitForIdle(); err != nil { |
| log.Fatalf("Failed to wait for idle: %v", err) |
| } |
| } |
| |
| goroot, err := determineGOROOT() |
| if err != nil { |
| log.Fatalf("Unable to determine GOROOT: %v", err) |
| } |
| |
| fmt.Println("toolchain: experiment") |
| |
| pass := true |
| if err := run(goroot); err != nil { |
| pass = false |
| } |
| |
| baseline := os.Getenv("BENCH_BASELINE_GOROOT") |
| if baseline != "" { |
| fmt.Println("toolchain: baseline") |
| |
| if err := run(baseline); err != nil { |
| pass = false |
| } |
| } |
| |
| if !pass { |
| log.Printf("FAIL") |
| os.Exit(1) |
| } |
| } |