diff --git a/docs/rfc/README.md b/docs/rfc/README.md
index 10b3cccf9..97f9d8306 100644
--- a/docs/rfc/README.md
+++ b/docs/rfc/README.md
@@ -38,5 +38,6 @@ sections.
 ## Table of Contents
 
 - [RFC-000: P2P Roadmap](./rfc-000-p2p-roadmap.rst)
+- [RFC-003: Performance Taxonomy](./rfc-003-performance-questions.md)
 
 <!-- - [RFC-NNN: Title](./rfc-NNN-title.md) -->
diff --git a/docs/rfc/rfc-003-performance-questions.md b/docs/rfc/rfc-003-performance-questions.md
index 604abcba2..170ac412b 100644
--- a/docs/rfc/rfc-003-performance-questions.md
+++ b/docs/rfc/rfc-003-performance-questions.md
@@ -189,6 +189,7 @@ it takes for popular chains with many validators to gather all votes within a st
 Metrics that would improve visibility into this include:
 
 * Amount of time for a node to gather votes in a step.
+* Amount of time for a node to gather all block parts.
 * Number of votes each node sends to gossip (i.e. not its own votes, but votes it is
 transmitting for a peer).
 * Total number of votes each node sends to receives (A node may receive duplicate votes