From 3d0482282e18b411f550f23eb78f8c491b66dd0a Mon Sep 17 00:00:00 2001
From: Christian von Elm <christian.von_elm@tu-dresden.de>
Date: Fri, 20 Oct 2023 11:08:12 +0200
Subject: [PATCH] Add comment

---
 src/perf/counter/userspace/writer.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/perf/counter/userspace/writer.cpp b/src/perf/counter/userspace/writer.cpp
index c72f549b..4e4875ad 100644
--- a/src/perf/counter/userspace/writer.cpp
+++ b/src/perf/counter/userspace/writer.cpp
@@ -52,6 +52,8 @@ bool Writer::handle(std::vector<UserspaceReadFormat>& data)
 
     for (std::size_t i = 0; i < counter_buffer_.size(); i++)
     {
+        // In get_scale, index 0 is reserved for the metric leader, which we don't have in the
+        // userspace metric mode, so add 1 to the counter index
         values[i] = counter_buffer_[i] * counter_collection_.get_scale(i + 1);
     }