code review 12429045: runtime/pprof: test multithreaded profile, remove OS X ...

src/pkg/runtime/pprof/pprof.go

 // Copyright 2010 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.
 
 // Package pprof writes runtime profiling data in the format expected
 // by the pprof visualization tool.
 // For more information about pprof, see
 // http://code.google.com/p/google-perftools/.
 package pprof
 
 import (
         "bufio"
         "bytes"
         "fmt"
         "io"
         "runtime"
         "sort"
         "strings"
         "sync"
         "text/tabwriter"
 )
 
-// BUG(rsc): A bug in the OS X Snow Leopard 64-bit kernel prevents
-// CPU profiling from giving accurate results on that system.
+// BUG(rsc): Profiles are incomplete and inaccuate on OS X. See http://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.
 // Packages can create and maintain their own profiles; the most common
 // use is for tracking resources that must be explicitly closed, such as files
 // or network connections.
 //
 // A Profile's methods can be called from multiple goroutines simultaneously.
 //
 // Each Profile has a unique name.  A few profiles are predefined:
@@ skipping 635 matching lines @@
                 }
         }
 
         if tw != nil {
                 tw.Flush()
         }
         return b.Flush()
 }
 
 func runtime_cyclesPerSecond() int64