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pprof: dump extra heap information at end of heap profile

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R=r
CC=golang-dev
https://golang.org/cl/786041
This commit is contained in:
Russ Cox 2010-03-26 15:32:53 -07:00
parent f375791a91
commit baf538406b
1 changed files with 24 additions and 0 deletions
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24
src/pkg/runtime/pprof/pprof.go
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@ -69,5 +69,29 @@ func WriteHeapProfile(w io.Writer) os.Error {
}
fmt.Fprintf(b, "\n")
}
// Print memstats information too.
// Pprof will ignore, but useful for people.
s := &runtime.MemStats
fmt.Fprintf(b, "\n# runtime.MemStats\n")
fmt.Fprintf(b, "# Alloc = %d\n", s.Alloc)
fmt.Fprintf(b, "# TotalAlloc = %d\n", s.TotalAlloc)
fmt.Fprintf(b, "# Sys = %d\n", s.Sys)
fmt.Fprintf(b, "# Stacks = %d\n", s.Stacks)
fmt.Fprintf(b, "# InusePages = %d\n", s.InusePages)
fmt.Fprintf(b, "# NextGC = %d\n", s.NextGC)
fmt.Fprintf(b, "# HeapAlloc = %d\n", s.HeapAlloc)
fmt.Fprintf(b, "# Lookups = %d\n", s.Lookups)
fmt.Fprintf(b, "# Mallocs = %d\n", s.Mallocs)
fmt.Fprintf(b, "# PauseNs = %d\n", s.PauseNs)
fmt.Fprintf(b, "# NumGC = %d\n", s.NumGC)
fmt.Fprintf(b, "# EnableGC = %v\n", s.EnableGC)
fmt.Fprintf(b, "# DebugGC = %v\n", s.DebugGC)
fmt.Fprintf(b, "# BySize = Size * (Active = Mallocs - Frees)\n")
for _, t := range s.BySize {
if t.Mallocs > 0 {
fmt.Fprintf(b, "# %d * (%d = %d - %d)\n", t.Size, t.Mallocs-t.Frees, t.Mallocs, t.Frees)
}
}
return b.Flush()
}