add Performance to README.md

Author: lispking

README.md

@@ -67,6 +67,38 @@ Main APIs include:
 - `Queue::is_full()` - Check if queue is full
 - `Queue::is_closed()` - Check if queue is closed
 
+## Performance
+
+The following performance tests were conducted on a lightweight server with 2 CPU cores and 4GB RAM:
+
+- **tokio-mpmc**:
+  - Queue size: 1,000,000
+  - Producers: 4
+  - Consumers: 4
+  - Performance test finished in: 318.360935ms
+
+- **tokio::sync::mpsc**:
+  - Queue size: 1,000,000
+  - Producers: 4
+  - Consumers: 1
+  - Performance test finished in: 987.390354ms
+
+- **tokio-mpmc IO**:
+  - Queue size: 1,000,000
+  - Producers: 4
+  - Consumers: 4
+  - IO performance test finished in: 4.495057117s
+
+- **tokio::sync::mpsc IO**:
+  - Queue size: 1,000,000
+  - Producers: 4
+  - Consumers: 1
+  - IO performance test finished in: 7.671314196s
+
+These results demonstrate the efficiency of tokio-mpmc in handling multiple producers and consumers compared to tokio::sync::mpsc.
+
+> See [benchmark code](./examples/performance-test.rs)
+
 ## License
 
 This project is licensed under the Apache-2.0 License. See the [LICENSE](LICENSE) file for details.

examples/performance-test.rs

@@ -11,6 +11,8 @@ async fn main() {
     let num_producers = 4;
     let num_consumers = 4;
 
+    println!("============================================");
+    println!("Starting non-IO tests");
     run_tokio_mpmc_test(
         queue_size as u32,
         num_producers as u32,
@@ -19,7 +21,8 @@ async fn main() {
     .await;
     run_tokio_mpsc_test(queue_size as u32, num_producers as u32).await;
 
-    let queue_size = 100_000;
+    println!("============================================");
+    println!("Starting IO tests");
     run_tokio_mpmc_io_test(
         queue_size as u32,
         num_producers as u32,

examples/tests/tokio_mpsc_io_test.rs

@@ -7,7 +7,7 @@ use tokio::sync::mpsc;
 pub async fn run_tokio_mpsc_io_test(queue_size: u32, num_producers: u32) -> std::time::Duration {
     let num_consumers = 1;
     println!(
-        "Starting tokio::sync::mpsc performance test with queue size: {}, producers: {}, consumers: {}",
+        "Starting tokio::sync::mpsc io performance test with queue size: {}, producers: {}, consumers: {}",
         queue_size, num_producers, num_consumers
     );