announce handler: extract_response_peers: optimize

TODO.md

@@ -2,11 +2,9 @@
 
 * Configuration, cli
 * Tests
-* Benchmarks
-    * Pareto distribution parameters OK?
+* Optimize extract_response_peers
 * Clean connections: `state.connections.shrink_to_fit()`?
 
-
 ## Don't do
 
 * Other hash algorithms: seemingly not worthwhile

aquatic/src/lib/handlers.rs

@@ -177,8 +177,10 @@ pub fn extract_response_peers(
             .collect()
     } else {
         peer_map.values()
-            .map(Peer::to_response_peer)
             .choose_multiple(rng, number_of_peers_to_take)
+            .into_iter()
+            .map(Peer::to_response_peer)
+            .collect()
     }
 }