diff --git a/server/src/lib.rs b/server/src/lib.rs
index e108015a27..92e55ab833 100644
--- a/server/src/lib.rs
+++ b/server/src/lib.rs
@@ -90,6 +90,7 @@ use common_net::{
 };
 use common_state::{BlockDiff, BuildAreas, State};
 use common_systems::add_local_systems;
+use common_base::prof_span;
 use metrics::{EcsSystemMetrics, PhysicsMetrics, TickMetrics};
 use network::{ListenAddr, Network, Pid};
 use persistence::{
@@ -221,6 +222,7 @@ impl Server {
         data_dir: &std::path::Path,
         runtime: Arc<Runtime>,
     ) -> Result<Self, Error> {
+        prof_span!("Server::new");
         info!("Server data dir is: {}", data_dir.display());
         if settings.auth_server_address.is_none() {
             info!("Authentication is disabled");
diff --git a/world/src/lib.rs b/world/src/lib.rs
index fe59e1b8c0..5f095572a1 100644
--- a/world/src/lib.rs
+++ b/world/src/lib.rs
@@ -55,6 +55,7 @@ use common::{
     },
     vol::{ReadVol, RectVolSize, WriteVol},
 };
+use common_base::prof_span;
 use common_net::msg::{world_msg, WorldMapMsg};
 use enum_map::EnumMap;
 use rand::{prelude::*, Rng};
@@ -110,6 +111,7 @@ impl World {
         opts: sim::WorldOpts,
         threadpool: &rayon::ThreadPool,
     ) -> (Self, IndexOwned) {
+        prof_span!("World::generate");
         // NOTE: Generating index first in order to quickly fail if the color manifest
         // is broken.
         threadpool.install(|| {