add benchmark to measure movement packet count

1 files changed, 55 insertions, 0 deletions

diff --git a/server/src/benchmark.rs b/server/src/benchmark.rs
new file mode 100644
index 00000000..ec4f10e8
--- /dev/null
+++ b/server/src/benchmark.rs
@@ -0,0 +1,55 @@
+/*
+    Hurry Curry! - a game about cooking
+    Copyright (C) 2025 Hurry Curry! Contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, version 3 of the License only.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+*/
+
+use crate::server::{Server, ServerConfig};
+use anyhow::Result;
+use hurrycurry_protocol::PacketC;
+use std::{path::PathBuf, time::Instant};
+use tokio::sync::broadcast;
+
+pub fn benchmark(data_path: PathBuf) -> Result<()> {
+    let mut server = Server::new(
+        data_path,
+        ServerConfig::default(),
+        broadcast::channel(1024).0,
+    )?;
+
+    server.load(server.index.generate_with_book("junior").unwrap(), None);
+
+    let start = Instant::now();
+    let mut packets = 0;
+    let mut packets_movement = 0;
+    loop {
+        if server.tick(1. / 50.).is_some() {
+            break;
+        }
+        while let Some(p) = server.packet_out.pop_front() {
+            packets += 1;
+            if let PacketC::Movement { .. } = &p {
+                packets_movement += 1;
+            }
+        }
+    }
+    println!("simulation took {:?}", start.elapsed());
+    println!(
+        "packets broadcast: {packets} ({packets_movement} movement, {} other)",
+        packets - packets_movement
+    );
+
+    Ok(())
+}