Исходники и презентации

lessons/errors/oom/main.go

@@ -0,0 +1,29 @@
+package main
+
+import "fmt"
+
+// GOGC=off go run main.go
+
+var data []byte
+
+func allocate() {
+	defer func() {
+		fmt.Println(recover())
+	}()
+
+	count := 0
+
+	for {
+		data = make([]byte, 1<<30)
+		for idx := 0; idx < 1<<30; idx += 4096 {
+			data[idx] = 100
+		}
+
+		fmt.Println("allocated GB:", count)
+		count++
+	}
+}
+
+func main() {
+	allocate()
+}