perf: optimize output channel handling and improve test reliability

- Increase the buffer size of the `output` channel from `1` to `10` - Add a sleep to simulate a slow consumer in the `output` channel processing Signed-off-by: appleboy <[email protected]>
go-training · Dec 21, 2024 · 9b897fa · 9b897fa
1 parent 69daa8a
commit 9b897fa
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/example56-context-timeout/main.go b/example56-context-timeout/main.go
@@ -5,7 +5,7 @@ import (
 )
 
 func main() {
-	output := make(chan int, 1)
+	output := make(chan int, 10)
 
 	go func() {
 		for i := 0; i < 30; i++ {
@@ -18,6 +18,8 @@ func main() {
 	for {
 		select {
 		case val := <-output:
+			// simulate slow consumer
+			time.Sleep(500 * time.Millisecond)
 			println("output:", val)
 		// how to fix the timeout issue?
 		case <-time.After(1 * time.Second):