From 53115b4860046f0f8afa31319b31eb63aa93a626 Mon Sep 17 00:00:00 2001
From: komuw <komuw05@gmail.com>
Date: Fri, 24 Aug 2018 16:45:28 +0300
Subject: [PATCH] runtime/pprof: document labels bug Currently only CPU profile
 utilizes tag information. This change documents that fact

---
 src/runtime/pprof/label.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/runtime/pprof/label.go b/src/runtime/pprof/label.go
index 35647ee3ce1f21..4ad7a901cd19b7 100644
--- a/src/runtime/pprof/label.go
+++ b/src/runtime/pprof/label.go
@@ -54,6 +54,8 @@ func WithLabels(ctx context.Context, labels LabelSet) context.Context {
 // Labels takes an even number of strings representing key-value pairs
 // and makes a LabelSet containing them.
 // A label overwrites a prior label with the same key.
+// BUG(hyangah): Currently only CPU profile utilizes labels information..
+// See https://github.com/golang/go/issues/23458 for details.
 func Labels(args ...string) LabelSet {
 	if len(args)%2 != 0 {
 		panic("uneven number of arguments to pprof.Labels")