Performance test result

README.md

@@ -62,6 +62,30 @@ func main() {
 
 Run this example with `go run examples/main.go`.
 
+## Performance Comparison
+Comparison of performance with original [go-cache](https://github.com/patrickmn/go-cache) implementation.
+
+Spoiler alert! The difference is insignificant.
+
+
+
+| Test                                         |     [Non generic](https://github.com/patrickmn/go-cache)|       |         This version |           |  
+|----------------------------------------------|-----------|-------------|-----------|---------------|
+| BenchmarkCacheGetStringExpiring-8            | 29884011 | 41.45 ns/op | 28318041 | 43.31 ns/op |
+| BenchmarkCacheGetStringNotExpiring-8         | 91891774 | 14.20 ns/op | 72259294 | 14.02 ns/op |
+| BenchmarkCacheGetConcurrentExpiring-8        | 26299849 | 42.58 ns/op | 30129078 | 39.53 ns/op |
+| BenchmarkCacheGetConcurrentNotExpiring-8     | 28991383 | 41.25 ns/op | 30760544 | 38.09 ns/op |
+| BenchmarkCacheGetManyConcurrentExpiring-8    | 55589712 | 44.90 ns/op | 56991110 | 38.86 ns/op |
+| BenchmarkCacheGetManyConcurrentNotExpiring-8 | 30105078 | 43.98 ns/op | 46270045 | 41.54 ns/op |
+| BenchmarkCacheSetStringExpiring-8            | 18392893 | 63.41 ns/op | 17788724 | 61.42 ns/op |
+| BenchmarkCacheSetStringNotExpiring-8         | 46400654 | 28.45 ns/op | 40226074 | 27.41 ns/op |
+| BenchmarkCacheSetDelete-8                    | 18703620 | 60.75 ns/op | 18270448 | 59.90 ns/op |
+| BenchmarkCacheSetDeleteSingleLock-8          | 32633755 | 39.34 ns/op | 32415156 | 36.96 ns/op |
+| BenchmarkCacheGetStructExpiring-8            | 30487856 | 41.60 ns/op | 26925226 | 40.55 ns/op |
+| BenchmarkCacheGetStructNotExpiring-8         | 91921044 | 13.94 ns/op | 96379750 | 13.08 ns/op |
+| BenchmarkCacheSetStructExpiring-8            | 13977464 | 86.44 ns/op | 13364509 | 87.69 ns/op |
+| BenchmarkCacheSetStructNotExpiring-8         | 22749384 | 54.14 ns/op | 23207397 | 52.58 ns/op |
+
 ### Reference
 
 `godoc` or [http://godoc.org/github.com/num30/go-cache](http://godoc.org/github.com/num30/go-cache)

bench_test.go

@@ -0,0 +1,15 @@
+package cache
+
+type BenchStr struct {
+	Num    int
+	String string
+}
+
+//func Benchmark_CacheGet(b *testing.B) {
+//	c := New[*BenchStr](DefaultExpiration, 0)
+//	c.Set("foo", &BenchStr{1, "bar"}, DefaultExpiration)
+//
+//	for i := 0; i < b.N; i++ {
+//		c.Get("foo")
+//	}
+//}

cache_test.go

@@ -2,13 +2,14 @@ package cache
 
 import (
 	"bytes"
-	"github.com/stretchr/testify/assert"
 	"io/ioutil"
 	"runtime"
 	"strconv"
 	"sync"
 	"testing"
 	"time"
+
+	"github.com/stretchr/testify/assert"
 )
 
 type TestStruct struct {
@@ -346,15 +347,15 @@ func TestSerializeUnserializable(t *testing.T) {
 	}
 }
 
-func BenchmarkCacheGetExpiring(b *testing.B) {
-	benchmarkCacheGet(b, 5*time.Minute)
+func BenchmarkCacheGetStringExpiring(b *testing.B) {
+	benchmarkCacheGetString(b, 5*time.Minute)
 }
 
-func BenchmarkCacheGetNotExpiring(b *testing.B) {
-	benchmarkCacheGet(b, NoExpiration)
+func BenchmarkCacheGetStringNotExpiring(b *testing.B) {
+	benchmarkCacheGetString(b, NoExpiration)
 }
 
-func benchmarkCacheGet(b *testing.B, exp time.Duration) {
+func benchmarkCacheGetString(b *testing.B, exp time.Duration) {
 	b.StopTimer()
 	tc := New[string](exp, 0)
 	tc.Set("foo", "bar", DefaultExpiration)
@@ -495,15 +496,15 @@ func benchmarkCacheGetManyConcurrent(b *testing.B, exp time.Duration) {
 	wg.Wait()
 }
 
-func BenchmarkCacheSetExpiring(b *testing.B) {
-	benchmarkCacheSet(b, 5*time.Minute)
+func BenchmarkCacheSetStringExpiring(b *testing.B) {
+	benchmarkCacheSetString(b, 5*time.Minute)
 }
 
-func BenchmarkCacheSetNotExpiring(b *testing.B) {
-	benchmarkCacheSet(b, NoExpiration)
+func BenchmarkCacheSetStringNotExpiring(b *testing.B) {
+	benchmarkCacheSetString(b, NoExpiration)
 }
 
-func benchmarkCacheSet(b *testing.B, exp time.Duration) {
+func benchmarkCacheSetString(b *testing.B, exp time.Duration) {
 	b.StopTimer()
 	tc := New[string](exp, 0)
 	b.StartTimer()
@@ -638,3 +639,43 @@ func TestGetWithExpiration(t *testing.T) {
 	assert.Equal(t, expiration.UnixNano(), tc.items["e"].Expiration, "expiration for e is not the correct time")
 	assert.Greater(t, expiration.UnixNano(), time.Now().UnixNano(), "expiration for e is in the past")
 }
+
+// Benchmark struct
+
+func BenchmarkCacheGetStructExpiring(b *testing.B) {
+	benchmarkCacheGetStruct(b, 5*time.Minute)
+}
+
+func BenchmarkCacheGetStructNotExpiring(b *testing.B) {
+	benchmarkCacheGetStruct(b, NoExpiration)
+}
+
+func benchmarkCacheGetStruct(b *testing.B, exp time.Duration) {
+	b.StopTimer()
+	tc := New[*TestStruct](exp, 0)
+
+	tc.Set("foo", &TestStruct{Num: 1}, DefaultExpiration)
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		st, _ := tc.Get("foo")
+		// just do something
+		st.Num++
+	}
+}
+
+func BenchmarkCacheSetStructExpiring(b *testing.B) {
+	benchmarkCacheSetStruct(b, 5*time.Minute)
+}
+
+func BenchmarkCacheSetStructNotExpiring(b *testing.B) {
+	benchmarkCacheSetStruct(b, NoExpiration)
+}
+
+func benchmarkCacheSetStruct(b *testing.B, exp time.Duration) {
+	b.StopTimer()
+	tc := New[*TestStruct](exp, 0)
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		tc.Set("foo", &TestStruct{Num: 1}, DefaultExpiration)
+	}
+}