Please note the original example won't run properly. `pprof.Labels()` takes
an even number of strings, since it's setting key/value pairs.
func handleFoo(ctx context.Context) {
labels := pprof.Labels("foo", "foo")
pprof.Do(ctx, labels, func(ctx context.Context) {
go interestingFunc()
})
}
Works better.
On Thursday, 3 January 2019 15:22:06 UTC+1, Francis wrote:
>
>
> I would like to use pprof labels, but it seems like I would need to pass a
> `context.Context` into all new goroutines and re-call pprof.Do at each of
> these stages. Am I mistaken here.
>
> specifically if we had
>
> unc handleFoo(ctx context.Context) {
> pprof.Do(ctx, pprof.Labels("foo"), func(ctx context.Context) {
> go interestingFunc()
> })
> }
>
> My understanding is that `interestingFunc` would not be profiled with the
> ‘foo’ label.
> If this is correct it presents a problem that I can’t group profiles under
> a label when I don’t control the spawning of goroutines myself.
> i.e. if a library spawns goroutines the work they do will simply appear
> under the global profile
>
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