Clarify that labels with pprof:: prefix are reserved for pprof use. (#…

…815)
google · Nov 1, 2023 · 4ca4178 · 4ca4178
1 parent ff6d637
commit 4ca4178
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/proto/profile.proto b/proto/profile.proto
@@ -128,7 +128,10 @@ message Sample {
 }
 
 message Label {
-  int64 key = 1;   // Index into string table
+  // Index into string table. An annotation for a sample (e.g.
+  // "allocation_size") with an associated value.
+  // Keys with "pprof::" prefix are reserved for internal use by pprof.
+  int64 key = 1;
 
   // At most one of the following must be present
   int64 str = 2;   // Index into string table