Function BenchmarkIterator_PartialScan

iterator_bench_test.go:301–338

BenchmarkIterator_PartialScan tests scanning a portion of data

(b *testing.B)

// BenchmarkIterator_PartialScan tests scanning a portion of data
func BenchmarkIterator_PartialScan(b *testing.B) {
	db, bucket := setupIteratorBenchmark(b, 100000)
	defer func() { _ = db.Close() }()

	b.ResetTimer()
	b.ReportAllocs()

	for i := 0; i < b.N; i++ {
		err := db.View(func(tx *Tx) error {
			iterator := NewIterator(tx, bucket, IteratorOptions{Reverse: false})
			defer iterator.Release()

			// Seek to starting position
			startKey := testutils.GetTestBytes(10000)
			if !iterator.Seek(startKey) {
				return fmt.Errorf("seek failed")
			}

			// Scan 1000 items
			count := 0
			for iterator.Valid() && count < 1000 {
				_ = iterator.Key()
				_, err := iterator.Value()
				if err != nil {
					return err
				}
				count++
				if !iterator.Next() {
					break
				}
			}
			return nil
		})
		if err != nil {
			b.Fatalf("View failed: %v", err)
		}
	}
}

// BenchmarkIterator_ValidCheck tests Valid() method overhead
func BenchmarkIterator_ValidCheck(b *testing.B) {