diff options
Diffstat (limited to 'test/garbage/parser.go')
| -rw-r--r-- | test/garbage/parser.go | 48 |
1 files changed, 35 insertions, 13 deletions
diff --git a/test/garbage/parser.go b/test/garbage/parser.go index cf68737fb..19a96bc63 100644 --- a/test/garbage/parser.go +++ b/test/garbage/parser.go @@ -11,13 +11,19 @@ import ( "fmt" "go/ast" "go/parser" + "go/token" "os" "path" "runtime" "strings" "time" + "http" + _ "http/pprof" + "log" ) +var serve = flag.String("serve", "", "serve http on this address at end") + func isGoFile(dir *os.FileInfo) bool { return dir.IsRegular() && !strings.HasPrefix(dir.Name, ".") && // ignore .files @@ -30,7 +36,7 @@ func isPkgFile(dir *os.FileInfo) bool { } func pkgName(filename string) string { - file, err := parser.ParseFile(filename, nil, parser.PackageClauseOnly) + file, err := parser.ParseFile(token.NewFileSet(), filename, nil, parser.PackageClauseOnly) if err != nil || file == nil { return "" } @@ -58,7 +64,7 @@ func parseDir(dirpath string) map[string]*ast.Package { } // get package AST - pkgs, err := parser.ParseDir(dirpath, filter, parser.ParseComments) + pkgs, err := parser.ParseDir(token.NewFileSet(), dirpath, filter, parser.ParseComments) if err != nil { println("parse", dirpath, err.String()) panic("fail") @@ -67,12 +73,19 @@ func parseDir(dirpath string) map[string]*ast.Package { } func main() { + runtime.GOMAXPROCS(4) + go func() {}() + go func() {}() + go func() {}() st := &runtime.MemStats + packages = append(packages, packages...) + packages = append(packages, packages...) n := flag.Int("n", 4, "iterations") p := flag.Int("p", len(packages), "# of packages to keep in memory") flag.BoolVar(&st.DebugGC, "d", st.DebugGC, "print GC debugging info (pause times)") flag.Parse() + var lastParsed []map[string]*ast.Package var t0 int64 pkgroot := runtime.GOROOT() + "/src/pkg/" for pass := 0; pass < 2; pass++ { @@ -81,7 +94,7 @@ func main() { // than the normal pauses and would otherwise make // the average look much better than it actually is. st.NumGC = 0 - st.PauseNs = 0 + st.PauseTotalNs = 0 t0 = time.Nanoseconds() for i := 0; i < *n; i++ { @@ -89,25 +102,34 @@ func main() { for j := range parsed { parsed[j] = parseDir(pkgroot + packages[j%len(packages)]) } + if i+1 == *n && *serve != "" { + lastParsed = parsed + } } runtime.GC() + runtime.GC() } t1 := time.Nanoseconds() fmt.Printf("Alloc=%d/%d Heap=%d Mallocs=%d PauseTime=%.3f/%d = %.3f\n", st.Alloc, st.TotalAlloc, st.Sys, - st.Mallocs, float64(st.PauseNs)/1e9, - st.NumGC, float64(st.PauseNs)/1e9/float64(st.NumGC)) - - fmt.Printf("%10s %10s %10s\n", "size", "#alloc", "#free") - for _, s := range st.BySize { - fmt.Printf("%10d %10d %10d\n", s.Size, s.Mallocs, s.Frees) - } + st.Mallocs, float64(st.PauseTotalNs)/1e9, + st.NumGC, float64(st.PauseTotalNs)/1e9/float64(st.NumGC)) + /* + fmt.Printf("%10s %10s %10s\n", "size", "#alloc", "#free") + for _, s := range st.BySize { + fmt.Printf("%10d %10d %10d\n", s.Size, s.Mallocs, s.Frees) + } + */ // Standard gotest benchmark output, collected by build dashboard. - fmt.Printf("garbage.BenchmarkParser %d %d ns/op\n", *n, (t1-t0)/int64(*n)) - fmt.Printf("garbage.BenchmarkParserPause %d %d ns/op\n", st.NumGC, int64(st.PauseNs)/int64(st.NumGC)) + gcstats("BenchmarkParser", *n, t1-t0) + + if *serve != "" { + log.Fatal(http.ListenAndServe(*serve, nil)) + println(lastParsed) + } } @@ -183,7 +205,6 @@ var packages = []string{ "math", "mime", "net", - "nntp", "os", "os/signal", "patch", @@ -195,6 +216,7 @@ var packages = []string{ "runtime", "scanner", "sort", + "smtp", "strconv", "strings", "sync", |