sub2api/backend/internal/service/gateway_service_benchmark_test.go
name 8ac2e23fb3 refactor(gateway): defer OpenAI request map decoding
Keep the Responses hot path on raw request bytes until complex mutation or retry branches need a decoded map, reducing large-body retention under high concurrency.
2026-05-31 16:00:35 +08:00

342 lines
10 KiB
Go

package service
import (
"strconv"
"strings"
"testing"
"github.com/Wei-Shaw/sub2api/internal/domain"
)
var (
benchmarkStringSink string
benchmarkIntSink int
)
// BenchmarkGenerateSessionHash_Metadata 关注 JSON 解析与正则匹配开销。
func BenchmarkGenerateSessionHash_Metadata(b *testing.B) {
svc := &GatewayService{}
body := []byte(`{"metadata":{"user_id":"session_123e4567-e89b-12d3-a456-426614174000"},"messages":[{"content":"hello"}]}`)
b.ReportAllocs()
for i := 0; i < b.N; i++ {
parsed, err := ParseGatewayRequest(NewRequestBodyRef(body), "")
if err != nil {
b.Fatalf("解析请求失败: %v", err)
}
benchmarkStringSink = svc.GenerateSessionHash(parsed)
}
}
func BenchmarkParseGatewayRequest_LargeAnthropicMessages(b *testing.B) {
for _, size := range benchmarkBodySizes() {
b.Run(size.name, func(b *testing.B) {
body := buildLargeAnthropicMessagesBody(size.bytes, false)
b.SetBytes(int64(len(body)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
parsed, err := ParseGatewayRequest(NewRequestBodyRef(body), domain.PlatformAnthropic)
if err != nil {
b.Fatalf("解析 Anthropic 请求失败: %v", err)
}
benchmarkIntSink = len(parsed.MessagesRaw())
}
})
}
}
func BenchmarkParseGatewayRequest_LargeGeminiContents(b *testing.B) {
for _, size := range benchmarkBodySizes() {
b.Run(size.name, func(b *testing.B) {
body := buildLargeGeminiContentsBody(size.bytes)
b.SetBytes(int64(len(body)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
parsed, err := ParseGatewayRequest(NewRequestBodyRef(body), domain.PlatformGemini)
if err != nil {
b.Fatalf("解析 Gemini 请求失败: %v", err)
}
benchmarkIntSink = len(parsed.MessagesRaw())
}
})
}
}
func BenchmarkGenerateSessionHash_LargeAnthropicMessages(b *testing.B) {
svc := &GatewayService{}
for _, size := range benchmarkBodySizes() {
b.Run(size.name, func(b *testing.B) {
body := buildLargeAnthropicMessagesBody(size.bytes, true)
parsed, err := ParseGatewayRequest(NewRequestBodyRef(body), domain.PlatformAnthropic)
if err != nil {
b.Fatalf("解析请求失败: %v", err)
}
b.SetBytes(int64(len(body)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
benchmarkStringSink = svc.GenerateSessionHash(parsed)
}
})
}
}
func BenchmarkOpenAIResponses_LargeInputMeta(b *testing.B) {
for _, size := range benchmarkBodySizes() {
b.Run(size.name, func(b *testing.B) {
body := buildLargeOpenAIResponsesBody(size.bytes)
b.SetBytes(int64(len(body)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
model, stream, promptCacheKey := extractOpenAIRequestMetaFromBody(body)
benchmarkStringSink = model + promptCacheKey
if stream {
benchmarkIntSink++
}
}
})
}
}
func BenchmarkOpenAIResponses_LargeInputDecodeMap(b *testing.B) {
for _, size := range benchmarkBodySizes() {
b.Run(size.name, func(b *testing.B) {
body := buildLargeOpenAIResponsesBody(size.bytes)
b.SetBytes(int64(len(body)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
reqBody, err := getOpenAIRequestBodyMap(nil, body)
if err != nil {
b.Fatalf("解析 OpenAI 请求失败: %v", err)
}
benchmarkIntSink = len(reqBody)
}
})
}
}
func BenchmarkOpenAIResponses_LargeInputRawPatch(b *testing.B) {
for _, size := range benchmarkBodySizes() {
b.Run(size.name, func(b *testing.B) {
body := buildLargeOpenAIResponsesBody(size.bytes)
b.SetBytes(int64(len(body)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
view := newOpenAIRequestView(body)
view.MarkPatchSet("instructions", "You are a helpful coding assistant.")
view.MarkPatchSet("reasoning.effort", "none")
patched, err := view.ApplyPatches()
if err != nil {
b.Fatalf("应用 OpenAI raw patch 失败: %v", err)
}
benchmarkIntSink = len(patched)
}
})
}
}
func BenchmarkOpenAIResponses_LargeInputImageBillingRaw(b *testing.B) {
for _, size := range benchmarkBodySizes() {
b.Run(size.name, func(b *testing.B) {
body := buildLargeOpenAIResponsesImageToolBody(size.bytes)
b.SetBytes(int64(len(body)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
cfg, err := resolveOpenAIResponsesImageBillingConfigDetailedFromBody(body, "gpt-5.4")
if err != nil {
b.Fatalf("解析 OpenAI 图片计费配置失败: %v", err)
}
benchmarkStringSink = cfg.Model + cfg.SizeTier + cfg.InputSize
}
})
}
}
func BenchmarkOpenAIResponses_LargeInputEmptyBase64Guard(b *testing.B) {
for _, size := range benchmarkBodySizes() {
b.Run(size.name, func(b *testing.B) {
body := buildLargeOpenAIResponsesBody(size.bytes)
b.SetBytes(int64(len(body)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
if openAIRequestBodyMayContainEmptyBase64InputImage(body) {
benchmarkIntSink++
}
}
})
}
}
func BenchmarkOpenAIResponses_LargeInputFunctionCallValidation(b *testing.B) {
for _, size := range benchmarkBodySizes() {
b.Run(size.name, func(b *testing.B) {
body := buildLargeOpenAIResponsesToolContinuationBody(size.bytes)
b.SetBytes(int64(len(body)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
validation := ValidateFunctionCallOutputContextBytes(body)
if !validation.HasFunctionCallOutput || !validation.HasItemReferenceForAllCallIDs {
b.Fatalf("工具续链校验结果异常: %+v", validation)
}
benchmarkIntSink++
}
})
}
}
// BenchmarkExtractCacheableContent_System 关注字符串拼接路径的性能。
func BenchmarkExtractCacheableContent_System(b *testing.B) {
svc := &GatewayService{}
req := buildSystemCacheableRequest(12)
b.ReportAllocs()
for i := 0; i < b.N; i++ {
benchmarkStringSink = svc.extractCacheableContent(req)
}
}
func benchmarkBodySizes() []struct {
name string
bytes int
} {
return []struct {
name string
bytes int
}{
{name: "4MB", bytes: 4 << 20},
{name: "8MB", bytes: 8 << 20},
{name: "16MB", bytes: 16 << 20},
{name: "32MB", bytes: 32 << 20},
}
}
func buildSystemCacheableRequest(parts int) *ParsedRequest {
var builder strings.Builder
builder.WriteString(`{"system":[`)
for i := 0; i < parts; i++ {
if i > 0 {
builder.WriteByte(',')
}
builder.WriteString(`{"text":"system_part_`)
builder.WriteString(strconv.Itoa(i))
builder.WriteString(`","cache_control":{"type":"ephemeral"}}`)
}
builder.WriteString(`]}`)
parsed, err := ParseGatewayRequest(NewRequestBodyRef([]byte(builder.String())), "")
if err != nil {
panic(err)
}
return parsed
}
func buildLargeAnthropicMessagesBody(targetBytes int, includeCacheControl bool) []byte {
var builder strings.Builder
builder.Grow(targetBytes + 1024)
builder.WriteString(`{"model":"claude-sonnet-4-5","stream":true,"system":[{"type":"text","text":"system seed"}],"messages":[`)
for i := 0; builder.Len() < targetBytes; i++ {
if i > 0 {
builder.WriteByte(',')
}
builder.WriteString(`{"role":"user","content":[{"type":"text","text":"`)
builder.WriteString(strings.Repeat("anthropic payload ", 64))
builder.WriteString(strconv.Itoa(i))
builder.WriteByte('"')
if includeCacheControl && i%32 == 0 {
builder.WriteString(`,"cache_control":{"type":"ephemeral"}`)
}
builder.WriteString(`}]}`)
}
builder.WriteString(`]}`)
return []byte(builder.String())
}
func buildLargeGeminiContentsBody(targetBytes int) []byte {
var builder strings.Builder
builder.Grow(targetBytes + 1024)
builder.WriteString(`{"model":"gemini-2.5-pro","systemInstruction":{"parts":[{"text":"system seed"}]},"contents":[`)
for i := 0; builder.Len() < targetBytes; i++ {
if i > 0 {
builder.WriteByte(',')
}
builder.WriteString(`{"role":"user","parts":[{"text":"`)
builder.WriteString(strings.Repeat("gemini payload ", 64))
builder.WriteString(strconv.Itoa(i))
builder.WriteString(`"}]}`)
}
builder.WriteString(`]}`)
return []byte(builder.String())
}
func buildLargeOpenAIResponsesBody(targetBytes int) []byte {
var builder strings.Builder
builder.Grow(targetBytes + 1024)
builder.WriteString(`{"model":"gpt-5.4","stream":true,"prompt_cache_key":"session-benchmark","input":[`)
for i := 0; builder.Len() < targetBytes; i++ {
if i > 0 {
builder.WriteByte(',')
}
builder.WriteString(`{"type":"message","role":"user","content":[{"type":"input_text","text":"`)
builder.WriteString(strings.Repeat("openai responses payload ", 48))
builder.WriteString(strconv.Itoa(i))
builder.WriteString(`"}]}`)
}
builder.WriteString(`],"tools":[{"type":"function","name":"lookup","parameters":{"type":"object","properties":{"query":{"type":"string"}}}}]}`)
return []byte(builder.String())
}
func buildLargeOpenAIResponsesToolContinuationBody(targetBytes int) []byte {
var builder strings.Builder
builder.Grow(targetBytes + 1024)
builder.WriteString(`{"model":"gpt-5.4","stream":true,"previous_response_id":"resp_benchmark","input":[`)
for i := 0; builder.Len() < targetBytes; i++ {
if i > 0 {
builder.WriteByte(',')
}
callID := "call_" + strconv.Itoa(i)
builder.WriteString(`{"type":"item_reference","id":"`)
builder.WriteString(callID)
builder.WriteString(`"},{"type":"function_call_output","call_id":"`)
builder.WriteString(callID)
builder.WriteString(`","output":"`)
builder.WriteString(strings.Repeat("tool output payload ", 48))
builder.WriteString(strconv.Itoa(i))
builder.WriteString(`"}`)
}
builder.WriteString(`]}`)
return []byte(builder.String())
}
func buildLargeOpenAIResponsesImageToolBody(targetBytes int) []byte {
var builder strings.Builder
builder.Grow(targetBytes + 1024)
builder.WriteString(`{"model":"gpt-5.4","stream":false,"tools":[{"type":"image_generation","model":"gpt-image-2","size":"2048x1152"}],"input":[`)
for i := 0; builder.Len() < targetBytes; i++ {
if i > 0 {
builder.WriteByte(',')
}
builder.WriteString(`{"type":"message","role":"user","content":[{"type":"input_text","text":"`)
builder.WriteString(strings.Repeat("openai image billing payload ", 48))
builder.WriteString(strconv.Itoa(i))
builder.WriteString(`"}]}`)
}
builder.WriteString(`]}`)
return []byte(builder.String())
}