Исходники и презентации

lessons/allocator/pool/pool_test.go

@@ -0,0 +1,50 @@
+package main
+
+// go test -bench=. pool_test.go -benchmem
+
+import (
+	"sync"
+	"testing"
+)
+
+type Person struct {
+	name string
+}
+
+type PersonsPool struct {
+	pool sync.Pool
+}
+
+func NewPersonsPool() *PersonsPool {
+	return &PersonsPool{
+		pool: sync.Pool{
+			New: func() interface{} { return new(Person) },
+		},
+	}
+}
+func (p *PersonsPool) Get() *Person {
+	return p.pool.Get().(*Person)
+}
+
+func (p *PersonsPool) Put(person *Person) {
+	p.pool.Put(person)
+}
+
+var gPerson *Person
+
+func BenchmarkWithPool(b *testing.B) {
+	pool := NewPersonsPool()
+	for i := 0; i < b.N; i++ {
+		person := pool.Get()
+		person.name = "Ivan" // need to reset values
+		gPerson = person
+		pool.Put(person)
+	}
+}
+
+func BenchmarkWithoutPool(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		person := &Person{name: "Ivan"}
+		gPerson = person
+	}
+}