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package easyproto
import (
"fmt"
"sync"
"testing"
)
func BenchmarkMarshalComplexMessage(b *testing.B) {
const seriesCount = 1_000
b.ReportAllocs()
b.SetBytes(seriesCount)
b.RunParallel(func(pb *testing.PB) {
var buf []byte
for pb.Next() {
buf = marshalComplexMessage(buf[:0], seriesCount)
}
})
}
func BenchmarkUnmarshalComplexMessage(b *testing.B) {
const seriesCount = 1_000
data := marshalComplexMessage(nil, seriesCount)
b.ReportAllocs()
b.SetBytes(seriesCount)
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
unmarshalComplexMessage(data)
}
})
}
func marshalComplexMessage(dst []byte, seriesCount int) []byte {
m := mp.Get()
mm := m.MessageMarshaler()
for i := 0; i < seriesCount; i++ {
mmTimeseries := mm.AppendMessage(1)
for j := 0; j < 20; j++ {
mmLabel := mmTimeseries.AppendMessage(1)
mmLabel.AppendString(1, "instance")
mmLabel.AppendString(2, "foo-bar-baz-aaa-bbb")
}
for j := 0; j < 1; j++ {
mmSample := mmTimeseries.AppendMessage(2)
mmSample.AppendDouble(1, float64(j)+1.23)
mmSample.AppendInt64(2, int64(j)*73287)
}
}
dst = m.Marshal(dst)
mp.Put(m)
return dst
}
func unmarshalComplexMessage(src []byte) {
type label struct {
name string
value string
}
type sample struct {
value float64
timestamp int64
}
type timeseries struct {
labels []label
samples []sample
}
type writeRequest struct {
tss []timeseries
}
resetTimeseries := func(ts *timeseries) {
labels := ts.labels
for i := range labels {
labels[i] = label{}
}
ts.labels = labels[:0]
samples := ts.samples
for i := range samples {
samples[i] = sample{}
}
ts.samples = samples[:0]
}
resetWriteRequest := func(wr *writeRequest) {
tss := wr.tss
for i := range tss {
resetTimeseries(&tss[i])
}
wr.tss = tss[:0]
}
unmarshalSample := func(smpl *sample, src []byte) error {
var fc FieldContext
for len(src) > 0 {
tail, err := fc.NextField(src)
if err != nil {
return fmt.Errorf("cannot get next field: %w", err)
}
switch fc.FieldNum {
case 1:
value, ok := fc.Double()
if !ok {
return fmt.Errorf("cannot unmarshal sample value")
}
smpl.value = value
case 2:
timestamp, ok := fc.Int64()
if !ok {
return fmt.Errorf("cannot unmarshal timestamp")
}
smpl.timestamp = timestamp
}
src = tail
}
return nil
}
unmarshalLabel := func(lbl *label, src []byte) error {
var fc FieldContext
for len(src) > 0 {
tail, err := fc.NextField(src)
if err != nil {
return fmt.Errorf("cannot get next field: %w", err)
}
switch fc.FieldNum {
case 1:
name, ok := fc.String()
if !ok {
return fmt.Errorf("cannot unmarshal label name")
}
lbl.name = name
case 2:
value, ok := fc.String()
if !ok {
return fmt.Errorf("cannot unmarshal label value")
}
lbl.value = value
}
src = tail
}
return nil
}
unmarshalTimeseries := func(ts *timeseries, src []byte) error {
labels := ts.labels
samples := ts.samples
var fc FieldContext
for len(src) > 0 {
tail, err := fc.NextField(src)
if err != nil {
return fmt.Errorf("cannot get next field: %w", err)
}
switch fc.FieldNum {
case 1:
data, ok := fc.MessageData()
if !ok {
return fmt.Errorf("cannot get label data")
}
if len(labels) < cap(labels) {
labels = labels[:len(labels)+1]
} else {
labels = append(labels, label{})
}
label := &labels[len(labels)-1]
if err := unmarshalLabel(label, data); err != nil {
return fmt.Errorf("cannot unmarshal label: %w", err)
}
case 2:
data, ok := fc.MessageData()
if !ok {
return fmt.Errorf("cannot get sample data")
}
if len(samples) < cap(samples) {
samples = samples[:len(samples)+1]
} else {
samples = append(samples, sample{})
}
sample := &samples[len(samples)-1]
if err := unmarshalSample(sample, data); err != nil {
return fmt.Errorf("cannot unmarshal sample: %w", err)
}
}
src = tail
}
ts.labels = labels
ts.samples = samples
return nil
}
unmarshalWriteRequest := func(wr *writeRequest, src []byte) error {
tss := wr.tss
var fc FieldContext
for len(src) > 0 {
tail, err := fc.NextField(src)
if err != nil {
return fmt.Errorf("cannot get next field: %w", err)
}
data, ok := fc.MessageData()
if !ok {
return fmt.Errorf("cannot get message data")
}
switch fc.FieldNum {
case 1:
if len(tss) < cap(tss) {
tss = tss[:len(tss)+1]
} else {
tss = append(tss, timeseries{})
}
ts := &tss[len(tss)-1]
if err := unmarshalTimeseries(ts, data); err != nil {
return fmt.Errorf("cannot unmarshal timeseries: %w", err)
}
}
src = tail
}
wr.tss = tss
return nil
}
v := writeRequestPool.Get()
if v == nil {
v = &writeRequest{}
}
wr := v.(*writeRequest)
if err := unmarshalWriteRequest(wr, src); err != nil {
panic(fmt.Errorf("cannot unmarshal writeRequest: %w", err))
}
resetWriteRequest(wr)
writeRequestPool.Put(wr)
}
var writeRequestPool sync.Pool
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