pre-alloc routing table

[dnsseed-rust] / src / bgp_client.rs

diff --git a/src/bgp_client.rs b/src/bgp_client.rs
index d2b3443b06d723840436edcd2cc7b3446776a3a6..5f436b1ca106f12d132952436961cd5df0db07a7 100644 (file)
--- a/src/bgp_client.rs
+++ b/src/bgp_client.rs
@@ -22,7 +22,7 @@ use futures::sync::mpsc;
 use crate::printer::{Printer, Stat};
 use crate::timeout_stream::TimeoutStream;
 
-const PATH_SUFFIX_LEN: usize = 2;
+const PATH_SUFFIX_LEN: usize = 3;
 #[derive(Clone)]
 struct Route { // 32 bytes with a path id u32
        path_suffix: [u32; PATH_SUFFIX_LEN],
@@ -31,7 +31,7 @@ struct Route { // 32 bytes with a path id u32
        med: u32,
 }
 #[allow(dead_code)]
-const ROUTE_LEN: usize = 32 - std::mem::size_of::<(u32, Route)>();
+const ROUTE_LEN: usize = 36 - std::mem::size_of::<(u32, Route)>();
 
 // To keep memory tight (and since we dont' need such close alignment), newtype the v4/v6 routing
 // table entries to make sure they are aligned to single bytes.
@@ -84,8 +84,8 @@ struct RoutingTable {
 impl RoutingTable {
        fn new() -> Self {
                Self {
-                       v4_table: HashMap::new(),
-                       v6_table: HashMap::new(),
+                       v4_table: HashMap::with_capacity(900_000),
+                       v6_table: HashMap::with_capacity(100_000),
                }
        }