[Go/kruda] Add Kruda framework

frameworks/Go/kruda/README.md

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+# Kruda — TechEmpower Framework Benchmarks
+
+[Kruda](https://github.com/go-kruda/kruda) (ครุฑ) is a high-performance Go web framework combining speed with type-safety through Go generics.
+
+## Test Types
+
+All 7 TFB test types:
+
+- `/json` — JSON serialization
+- `/plaintext` — Plaintext
+- `/db` — Single database query
+- `/queries?queries=N` — Multiple database queries
+- `/updates?queries=N` — Database updates
+- `/fortunes` — Fortunes (HTML rendering with XSS escaping)
+- `/cached-queries?count=N` — Cached queries
+
+## Build & Run (Local)
+
+```bash
+docker compose up --build
+```
+
+- Kruda: http://localhost:8080
+- PostgreSQL: localhost:5432
+
+## Key Optimizations
+
+- Zero-allocation JSON/plaintext handlers (pre-allocated response bytes)
+- Manual JSON serializer using `strconv.AppendInt` (no `encoding/json`)
+- Manual HTML builder with byte-level XSS escaping (no `html/template`)
+- Tiered `sync.Pool` buffer pools (1KB / 8KB / 32KB)
+- `pgx.Batch` for single-roundtrip multi-query and update operations
+- Flat-array in-memory cache for cached queries (0-alloc lookups)
+- Atomic date header cache (1-second refresh)
+- Wing transport: epoll per-worker, zero-copy response building

frameworks/Go/kruda/benchmark_config.json

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+{
+  "framework": "kruda",
+  "tests": [
+    {
+      "default": {
+        "json_url": "/json",
+        "plaintext_url": "/plaintext",
+        "db_url": "/db",
+        "query_url": "/queries?n=",
+        "update_url": "/updates?n=",
+        "fortune_url": "/fortunes",
+        "cached_query_url": "/cached-queries?n=",
+        "port": 8080,
+        "approach": "Realistic",
+        "classification": "Micro",
+        "database": "Postgres",
+        "database_os": "Linux",
+        "display_name": "Kruda",
+        "framework": "kruda",
+        "language": "Go",
+        "flavor": "None",
+        "orm": "Raw",
+        "os": "Linux",
+        "platform": "None",
+        "webserver": "None",
+        "versus": "go",
+        "notes": ""
+      }
+    }
+  ]
+}

frameworks/Go/kruda/config.toml

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+[framework]
+name = "kruda"
+
+[main]
+urls.plaintext = "/plaintext"
+urls.json = "/json"
+urls.db = "/db"
+urls.query = "/queries?n="
+urls.update = "/updates?n="
+urls.fortune = "/fortunes"
+urls.cached_query = "/cached-queries?n="
+approach = "Realistic"
+classification = "Micro"
+database = "Postgres"
+database_os = "Linux"
+os = "Linux"
+orm = "Raw"
+platform = "None"
+webserver = "None"
+versus = "go"

frameworks/Go/kruda/kruda.dockerfile

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+FROM golang:1.26-alpine AS builder
+
+RUN apk add --no-cache git
+
+WORKDIR /kruda
+COPY ./src /kruda
+
+RUN GOAMD64=v3 go build -ldflags="-s -w" -gcflags="-B" -trimpath -o app .
+
+FROM alpine:3.20
+RUN apk --no-cache add ca-certificates tzdata
+WORKDIR /kruda
+COPY --from=builder /kruda/app .
+
+EXPOSE 8080
+ENV GOGC=500 GOMEMLIMIT=512MiB
+CMD ["./app"]

frameworks/Go/kruda/src/go.mod

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+module tfb-kruda
+
+go 1.25.8
+
+require (
+	github.com/go-kruda/kruda v1.0.2
+	github.com/jackc/pgx/v5 v5.8.0
+)
+
+require (
+	github.com/andybalholm/brotli v1.2.0 // indirect
+	github.com/bytedance/gopkg v0.1.3 // indirect
+	github.com/bytedance/sonic v1.15.0 // indirect
+	github.com/bytedance/sonic/loader v0.5.0 // indirect
+	github.com/cloudwego/base64x v0.1.6 // indirect
+	github.com/go-kruda/kruda/transport/wing v1.0.2 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/klauspost/compress v1.18.2 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.9 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasthttp v1.69.0 // indirect
+	golang.org/x/arch v0.0.0-20210923205945-b76863e36670 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
+	golang.org/x/text v0.32.0 // indirect
+)

frameworks/Go/kruda/src/go.sum

@@ -0,0 +1,64 @@
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