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Add packetcache benchmarks.
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parent
4d2bd6e473
commit
d723d20ee6
1 changed files with 106 additions and 7 deletions
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@ -3,6 +3,7 @@ package packetcache
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import (
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"bytes"
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"math/rand"
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"sync"
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"testing"
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"unsafe"
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@ -85,8 +86,8 @@ func TestCacheAlignment(t *testing.T) {
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cache := New(16)
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for i := range cache.entries {
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p := unsafe.Pointer(&cache.entries[i])
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if uintptr(p) % 32 != 0 {
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t.Errorf("%v: alignment %v", i, uintptr(p) % 32)
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if uintptr(p)%32 != 0 {
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t.Errorf("%v: alignment %v", i, uintptr(p)%32)
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}
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}
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}
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@ -100,7 +101,7 @@ func TestBitmap(t *testing.T) {
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var first uint16
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for i := 0; i < 64; i++ {
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if (value & (1 << i)) != 0 {
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first, _ = cache.Store(uint16(42 + i), packet)
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first, _ = cache.Store(uint16(42+i), packet)
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}
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}
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@ -122,7 +123,7 @@ func TestBitmapWrap(t *testing.T) {
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var first uint16
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for i := 0; i < 64; i++ {
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if (value & (1 << i)) != 0 {
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first, _ = cache.Store(uint16(42 + i), packet)
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first, _ = cache.Store(uint16(42+i), packet)
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}
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}
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@ -140,7 +141,7 @@ func TestBitmapGet(t *testing.T) {
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for i := 0; i < 64; i++ {
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if (value & (1 << i)) != 0 {
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cache.Store(uint16(42 + i), packet)
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cache.Store(uint16(42+i), packet)
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}
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}
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@ -161,7 +162,7 @@ func TestBitmapGet(t *testing.T) {
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value >>= 1
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pos += 1
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for bitmap != 0 {
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if uint8(bitmap & 1) == uint8(value & 1) {
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if uint8(bitmap&1) == uint8(value&1) {
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t.Errorf("Bitmap mismatch")
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}
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bitmap >>= 1
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@ -182,7 +183,7 @@ func TestBitmapPacket(t *testing.T) {
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for i := 0; i < 64; i++ {
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if (value & (1 << i)) != 0 {
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cache.Store(uint16(42 + i), packet)
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cache.Store(uint16(42+i), packet)
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}
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}
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@ -203,3 +204,101 @@ func TestBitmapPacket(t *testing.T) {
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}
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}
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}
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func BenchmarkCachePutGet(b *testing.B) {
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n := 10
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chans := make([]chan uint16, n)
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for i := range chans {
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chans[i] = make(chan uint16, 8)
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}
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cache := New(96)
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var wg sync.WaitGroup
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wg.Add(len(chans))
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for i := range chans {
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go func(ch <-chan uint16) {
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defer wg.Done()
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buf := make([]byte, BufSize)
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for {
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seqno, ok := <-ch
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if !ok {
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return
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}
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l := cache.Get(seqno, buf)
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if l == 0 {
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b.Errorf("Couldn't get %v", seqno)
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}
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}
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}(chans[i])
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}
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buf := make([]byte, 1200)
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b.SetBytes(1200)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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seqno := uint16(i)
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cache.Store(seqno, buf)
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for _, ch := range chans {
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ch <- seqno
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}
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}
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for _, ch := range chans {
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close(ch)
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}
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wg.Wait()
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}
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type is struct {
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index, seqno uint16
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}
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func BenchmarkCachePutGetAt(b *testing.B) {
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n := 10
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chans := make([]chan is, n)
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for i := range chans {
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chans[i] = make(chan is, 8)
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}
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cache := New(96)
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var wg sync.WaitGroup
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wg.Add(len(chans))
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for i := range chans {
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go func(ch <-chan is) {
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defer wg.Done()
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buf := make([]byte, BufSize)
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for {
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is, ok := <-ch
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if !ok {
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return
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}
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l := cache.GetAt(is.seqno, is.index, buf)
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if l == 0 {
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b.Errorf("Couldn't get %v", is)
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}
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}
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}(chans[i])
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}
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buf := make([]byte, 1200)
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b.SetBytes(1200)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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seqno := uint16(i)
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_, index := cache.Store(seqno, buf)
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for _, ch := range chans {
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ch <- is{index, seqno}
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}
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}
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for _, ch := range chans {
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close(ch)
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}
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wg.Wait()
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}
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