diff options
Diffstat (limited to 'libgo/go/runtime/pprof/pprof.go')
| -rw-r--r-- | libgo/go/runtime/pprof/pprof.go | 65 |
1 files changed, 35 insertions, 30 deletions
diff --git a/libgo/go/runtime/pprof/pprof.go b/libgo/go/runtime/pprof/pprof.go index 38593afb6f2..dcf67cd573f 100644 --- a/libgo/go/runtime/pprof/pprof.go +++ b/libgo/go/runtime/pprof/pprof.go @@ -21,7 +21,7 @@ import ( ) // BUG(rsc): Profiles are incomplete and inaccurate on NetBSD and OS X. -// See http://golang.org/issue/6047 for details. +// See https://golang.org/issue/6047 for details. // A Profile is a collection of stack traces showing the call sequences // that led to instances of a particular event, such as allocation. @@ -41,6 +41,13 @@ import ( // These predefined profiles maintain themselves and panic on an explicit // Add or Remove method call. // +// The heap profile reports statistics as of the most recently completed +// garbage collection; it elides more recent allocation to avoid skewing +// the profile away from live data and toward garbage. +// If there has been no garbage collection at all, the heap profile reports +// all known allocations. This exception helps mainly in programs running +// without garbage collection enabled, usually for debugging purposes. +// // The CPU profile is not available as a Profile. It has a special API, // the StartCPUProfile and StopCPUProfile functions, because it streams // output to a writer during profiling. @@ -454,35 +461,33 @@ func writeHeap(w io.Writer, debug int) error { // Print memstats information too. // Pprof will ignore, but useful for people - if debug > 0 { - s := new(runtime.MemStats) - runtime.ReadMemStats(s) - fmt.Fprintf(w, "\n# runtime.MemStats\n") - fmt.Fprintf(w, "# Alloc = %d\n", s.Alloc) - fmt.Fprintf(w, "# TotalAlloc = %d\n", s.TotalAlloc) - fmt.Fprintf(w, "# Sys = %d\n", s.Sys) - fmt.Fprintf(w, "# Lookups = %d\n", s.Lookups) - fmt.Fprintf(w, "# Mallocs = %d\n", s.Mallocs) - fmt.Fprintf(w, "# Frees = %d\n", s.Frees) - - fmt.Fprintf(w, "# HeapAlloc = %d\n", s.HeapAlloc) - fmt.Fprintf(w, "# HeapSys = %d\n", s.HeapSys) - fmt.Fprintf(w, "# HeapIdle = %d\n", s.HeapIdle) - fmt.Fprintf(w, "# HeapInuse = %d\n", s.HeapInuse) - fmt.Fprintf(w, "# HeapReleased = %d\n", s.HeapReleased) - fmt.Fprintf(w, "# HeapObjects = %d\n", s.HeapObjects) - - fmt.Fprintf(w, "# Stack = %d / %d\n", s.StackInuse, s.StackSys) - fmt.Fprintf(w, "# MSpan = %d / %d\n", s.MSpanInuse, s.MSpanSys) - fmt.Fprintf(w, "# MCache = %d / %d\n", s.MCacheInuse, s.MCacheSys) - fmt.Fprintf(w, "# BuckHashSys = %d\n", s.BuckHashSys) - - fmt.Fprintf(w, "# NextGC = %d\n", s.NextGC) - fmt.Fprintf(w, "# PauseNs = %d\n", s.PauseNs) - fmt.Fprintf(w, "# NumGC = %d\n", s.NumGC) - fmt.Fprintf(w, "# EnableGC = %v\n", s.EnableGC) - fmt.Fprintf(w, "# DebugGC = %v\n", s.DebugGC) - } + s := new(runtime.MemStats) + runtime.ReadMemStats(s) + fmt.Fprintf(w, "\n# runtime.MemStats\n") + fmt.Fprintf(w, "# Alloc = %d\n", s.Alloc) + fmt.Fprintf(w, "# TotalAlloc = %d\n", s.TotalAlloc) + fmt.Fprintf(w, "# Sys = %d\n", s.Sys) + fmt.Fprintf(w, "# Lookups = %d\n", s.Lookups) + fmt.Fprintf(w, "# Mallocs = %d\n", s.Mallocs) + fmt.Fprintf(w, "# Frees = %d\n", s.Frees) + + fmt.Fprintf(w, "# HeapAlloc = %d\n", s.HeapAlloc) + fmt.Fprintf(w, "# HeapSys = %d\n", s.HeapSys) + fmt.Fprintf(w, "# HeapIdle = %d\n", s.HeapIdle) + fmt.Fprintf(w, "# HeapInuse = %d\n", s.HeapInuse) + fmt.Fprintf(w, "# HeapReleased = %d\n", s.HeapReleased) + fmt.Fprintf(w, "# HeapObjects = %d\n", s.HeapObjects) + + fmt.Fprintf(w, "# Stack = %d / %d\n", s.StackInuse, s.StackSys) + fmt.Fprintf(w, "# MSpan = %d / %d\n", s.MSpanInuse, s.MSpanSys) + fmt.Fprintf(w, "# MCache = %d / %d\n", s.MCacheInuse, s.MCacheSys) + fmt.Fprintf(w, "# BuckHashSys = %d\n", s.BuckHashSys) + + fmt.Fprintf(w, "# NextGC = %d\n", s.NextGC) + fmt.Fprintf(w, "# PauseNs = %d\n", s.PauseNs) + fmt.Fprintf(w, "# NumGC = %d\n", s.NumGC) + fmt.Fprintf(w, "# EnableGC = %v\n", s.EnableGC) + fmt.Fprintf(w, "# DebugGC = %v\n", s.DebugGC) if tw != nil { tw.Flush() |