go1.7.1
go run -gcflags '-N -l -m' example.go
在 2017年4月14日星期五 UTC+8下午1:18:26，Ian Lance Taylor写道：
>
> On Thu, Apr 13, 2017 at 8:33 PM, 刘桂祥 <liuguix...@gmail.com <javascript:>>
> wrote:
> > // example.go
> > package main
> >
> >
> > import "runtime"
> >
> >
> > type S struct{}
> >
> >
> > func main() {
> > var stats runtime.MemStats
> >
> >
> > runtime.ReadMemStats(&stats)
> > println(stats.Mallocs)
> > var x S
> > runtime.ReadMemStats(&stats)
> > println(stats.Mallocs)
> > _ = *ref(x)
> > runtime.ReadMemStats(&stats)
> > println(stats.Mallocs)
> > }
> >
> >
> > func ref(z S) *S {
> > return &z
> > }
> >
> > go build -gcflags '-N -l' example.go && ./example
> > or
> > go run -gcflags '-N -l' example.go
> >
> > results:
> > ./example.go:21: &z escapes to heap
> > ./example.go:20: moved to heap: z
> > ./example.go:10: main &stats does not escape
> > ./example.go:13: main &stats does not escape
> > ./example.go:16: main &stats does not escape
> > 61
> > 61
> > 61
>
> That looks like the output from -gcflags="-m -l". Are you really sure
> you typed -N? What version of Go are you using?
>
> Ian
>
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
