38c09c92bb
- Add skip checks to native queue benchmarks when FETCHML_NATIVE_LIBS=0 - Skip TestGoNativeArtifactScanLeak cleanly instead of 100 warnings - Add build tags (!native_libs/native_libs) for Go vs Native comparison - Add benchmark-native and benchmark-compare Makefile targets
120 lines
2.8 KiB
Go
120 lines
2.8 KiB
Go
//go:build !native_libs
|
|
// +build !native_libs
|
|
|
|
package benchmarks
|
|
|
|
import (
|
|
"os"
|
|
"path/filepath"
|
|
"testing"
|
|
|
|
"github.com/jfraeys/fetch_ml/internal/worker"
|
|
)
|
|
|
|
// BenchmarkDirOverallSHA256Hex profiles the directory hashing hot path.
|
|
// This function walks directories, sorts files, and computes SHA256 hashes.
|
|
// It's a Tier 1 candidate for C++ optimization via:
|
|
// - Memory-mapped file reads
|
|
// - Parallel hashing
|
|
// - SIMD SHA256 (Intel SHA extensions or ARMv8 crypto)
|
|
func BenchmarkDirOverallSHA256Hex(b *testing.B) {
|
|
// Create a temp directory structure resembling a dataset
|
|
tmpDir := b.TempDir()
|
|
|
|
// Create nested structure with files of varying sizes
|
|
sizes := []int{1024, 10240, 102400, 1024 * 1024} // 1KB to 1MB
|
|
for i, size := range sizes {
|
|
subdir := filepath.Join(tmpDir, "subdir", string(rune('a'+i)))
|
|
if err := os.MkdirAll(subdir, 0750); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
data := make([]byte, size)
|
|
for j := range data {
|
|
data[j] = byte(i + j%256)
|
|
}
|
|
if err := os.WriteFile(filepath.Join(subdir, "data.bin"), data, 0640); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// Add some small metadata files
|
|
metaDir := filepath.Join(tmpDir, "meta")
|
|
if err := os.MkdirAll(metaDir, 0750); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
for i := 0; i < 10; i++ {
|
|
if err := os.WriteFile(
|
|
filepath.Join(metaDir, "file"+string(rune('0'+i))+".json"),
|
|
[]byte(`{"key": "value"}`),
|
|
0640,
|
|
); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
|
|
b.ResetTimer()
|
|
b.ReportAllocs()
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := worker.DirOverallSHA256Hex(tmpDir)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// BenchmarkDirOverallSHA256HexLarge profiles with larger dataset simulation
|
|
func BenchmarkDirOverallSHA256HexLarge(b *testing.B) {
|
|
tmpDir := b.TempDir()
|
|
|
|
// Create 50 files of 100KB each = ~5MB total
|
|
for i := 0; i < 50; i++ {
|
|
subdir := filepath.Join(tmpDir, "data", string(rune('a'+i%26)))
|
|
if err := os.MkdirAll(subdir, 0750); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
data := make([]byte, 100*1024)
|
|
for j := range data {
|
|
data[j] = byte(i + j%256)
|
|
}
|
|
if err := os.WriteFile(
|
|
filepath.Join(subdir, "chunk"+string(rune('0'+i/26))+".bin"),
|
|
data,
|
|
0640,
|
|
); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
|
|
b.Run("Sequential", func(b *testing.B) {
|
|
b.ReportAllocs()
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := worker.DirOverallSHA256Hex(tmpDir)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
})
|
|
|
|
b.Run("ParallelGo", func(b *testing.B) {
|
|
b.ReportAllocs()
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := worker.DirOverallSHA256HexParallel(tmpDir)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
})
|
|
|
|
b.Run("Native", func(b *testing.B) {
|
|
// This requires FETCHML_NATIVE_LIBS=1 to actually use native
|
|
// Otherwise falls back to Go implementation
|
|
b.ReportAllocs()
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := worker.DirOverallSHA256Hex(tmpDir)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
})
|
|
}
|