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Add encode benchmarks

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This commit is contained in:
PhatPhuckDave
2024-07-30 22:14:19 +02:00
parent 76d7102e72
commit 9fbcdd86cc
2 changed files with 44 additions and 11 deletions
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21
encoding/gsm7.go
View File

@@ -3,7 +3,6 @@ package encoding
import ( import (
"bytes" "bytes"
"fmt" "fmt"
"log"
) )
type GSM7Coder struct{} type GSM7Coder struct{}
@@ -82,11 +81,11 @@ func (c *GSM7Coder) Decode(buf *bytes.Buffer) (string, error) {
if bitshift == 7 { if bitshift == 7 {
leap = true leap = true
} }
log.Printf("Index:%-3d Offset:%-3d Bitshift:%-3d CurrentByte:%08b (%-3d) OffsetByte(%-3d):%08b (%-3d) Leap:%5v", index, offset, bitshift, gsm7[index], gsm7[index], index+offset, gsm7[index+offset], gsm7[index+offset], leap) // log.Printf("Index:%-3d Offset:%-3d Bitshift:%-3d CurrentByte:%08b (%-3d) OffsetByte(%-3d):%08b (%-3d) Leap:%5v", index, offset, bitshift, gsm7[index], gsm7[index], index+offset, gsm7[index+offset], gsm7[index+offset], leap)
mask := byte(255 << (8 - bitshift)) mask := byte(255 << (8 - bitshift))
masked := (mask & octet) >> (8 - bitshift) masked := (mask & octet) >> (8 - bitshift)
log.Printf("Index:%-3d Offset:%-3d Bitshift:%-3d Mask:%08b Masked:%08b", index, offset, bitshift, mask, masked) // log.Printf("Index:%-3d Offset:%-3d Bitshift:%-3d Mask:%08b Masked:%08b", index, offset, bitshift, mask, masked)
if leap { if leap {
InsertAt(&gsm7, index+offset, masked) InsertAt(&gsm7, index+offset, masked)
} else { } else {
@@ -97,7 +96,7 @@ func (c *GSM7Coder) Decode(buf *bytes.Buffer) (string, error) {
// Move the remaining bit once to the right to form septet instead of octet // Move the remaining bit once to the right to form septet instead of octet
gsm7[index] >>= 1 gsm7[index] >>= 1
log.Printf("Index:%-3d Offset:%-3d Bitshift:%-3d CurrentByte:%08b (%-3d) OffsetByte(%-3d):%08b (%-3d) Leap:%5v", index, offset, bitshift, gsm7[index], gsm7[index], index+offset, gsm7[index+offset], gsm7[index+offset], leap) // log.Printf("Index:%-3d Offset:%-3d Bitshift:%-3d CurrentByte:%08b (%-3d) OffsetByte(%-3d):%08b (%-3d) Leap:%5v", index, offset, bitshift, gsm7[index], gsm7[index], index+offset, gsm7[index+offset], gsm7[index+offset], leap)
leap = false leap = false
continue continue
@@ -107,17 +106,17 @@ func (c *GSM7Coder) Decode(buf *bytes.Buffer) (string, error) {
if index == len(gsm7)-1 && gsm7[index] > 0 { if index == len(gsm7)-1 && gsm7[index] > 0 {
buf.WriteByte(gsm7[index]) buf.WriteByte(gsm7[index])
} }
log.Printf("Index:%-3d Offset:%-3d Bitshift:%-3d CurrentByte:%08b (%-3d) OffsetByte:%08b (%-3d) Leap:%5v", index, offset, bitshift, gsm7[index], gsm7[index], gsm7[index-offset], gsm7[index-offset], leap) // log.Printf("Index:%-3d Offset:%-3d Bitshift:%-3d CurrentByte:%08b (%-3d) OffsetByte:%08b (%-3d) Leap:%5v", index, offset, bitshift, gsm7[index], gsm7[index], gsm7[index-offset], gsm7[index-offset], leap)
if bitshift >= 7 { if bitshift >= 7 {
if leap { if leap {
log.Printf("Shift at Index:%-3d Offset:%-3d Bitshift:%-3d", index, offset, bitshift) // log.Printf("Shift at Index:%-3d Offset:%-3d Bitshift:%-3d", index, offset, bitshift)
leap = false leap = false
bitshift = 0 bitshift = 0
offset++ offset++
shift = true shift = true
continue continue
} }
log.Printf("Leap at Index:%-3d Offset:%-3d Bitshift:%-3d", index, offset, bitshift) // log.Printf("Leap at Index:%-3d Offset:%-3d Bitshift:%-3d", index, offset, bitshift)
leap = true leap = true
bitshift = 6 bitshift = 6
} }
@@ -125,10 +124,10 @@ func (c *GSM7Coder) Decode(buf *bytes.Buffer) (string, error) {
offset = 1 offset = 1
} }
} }
log.Printf("Result: %+v", gsm7) // log.Printf("Result: %+v", gsm7)
for _, v := range gsm7 { // for _, v := range gsm7 {
log.Printf("%08b", v) // log.Printf("%08b", v)
} // }
return string(gsm7), nil return string(gsm7), nil
} }

34
encoding/gsm7_test.go
View File

@@ -217,4 +217,38 @@ func TestDeletesLastValue(t *testing.T) {
if !bytes.Equal(data, expected) { if !bytes.Equal(data, expected) {
t.Errorf("expected %v, got %v", expected, data) t.Errorf("expected %v, got %v", expected, data)
} }
}
// benchmark
func BenchmarkGSM7EncodeSimpleASCIIString(b *testing.B) {
coder := &GSM7Coder{}
var buf bytes.Buffer
input := "Sunshine"
b.ResetTimer()
for i := 0; i < b.N; i++ {
coder.Encode(input, &buf)
}
}
func BenchmarkGSM7EncodeComplexASCIIString(b *testing.B) {
coder := &GSM7Coder{}
var buf bytes.Buffer
input := "Golden rays play, Chasing night away."
b.ResetTimer()
for i := 0; i < b.N; i++ {
coder.Encode(input, &buf)
}
}
func BenchmarkGSM7EncodeComplex8nASCIIString(b *testing.B) {
coder := &GSM7Coder{}
var buf bytes.Buffer
input := "Ducks are fucking great, they quacks, O quackers, what the fuck."
b.ResetTimer()
for i := 0; i < b.N; i++ {
coder.Encode(input, &buf)
}
} }