Measure baseline performance metrics for B+ tree operations.
| 16 | |
| 17 | |
| 18 | class PerformanceBaseline: |
| 19 | """Measure baseline performance metrics for B+ tree operations.""" |
| 20 | |
| 21 | def __init__(self, tree_size: int = 10000, order: int = 128): |
| 22 | self.tree_size = tree_size |
| 23 | self.order = order |
| 24 | self.keys = list(range(tree_size)) |
| 25 | random.shuffle(self.keys) |
| 26 | self.tree = None |
| 27 | |
| 28 | def measure_operation(self, operation, iterations: int = 1) -> Tuple[float, float]: |
| 29 | """Measure operation time and return (total_time, per_operation_time).""" |
| 30 | gc.collect() |
| 31 | gc.disable() |
| 32 | |
| 33 | start = time.perf_counter() |
| 34 | for _ in range(iterations): |
| 35 | operation() |
| 36 | end = time.perf_counter() |
| 37 | |
| 38 | gc.enable() |
| 39 | total_time = end - start |
| 40 | per_op_time = total_time / iterations |
| 41 | return total_time, per_op_time |
| 42 | |
| 43 | def test_sequential_insert(self) -> Dict[str, float]: |
| 44 | """Test sequential insertion performance.""" |
| 45 | self.tree = BPlusTreeMap(capacity=self.order) |
| 46 | |
| 47 | def insert_all(): |
| 48 | for i in range(self.tree_size): |
| 49 | self.tree[i] = i * 2 |
| 50 | |
| 51 | total_time, per_op_time = self.measure_operation(insert_all) |
| 52 | |
| 53 | return { |
| 54 | "total_time": total_time, |
| 55 | "per_operation_ns": per_op_time * 1e9 / self.tree_size, |
| 56 | "operations_per_second": self.tree_size / total_time, |
| 57 | } |
| 58 | |
| 59 | def test_random_insert(self) -> Dict[str, float]: |
| 60 | """Test random insertion performance.""" |
| 61 | self.tree = BPlusTreeMap(capacity=self.order) |
| 62 | |
| 63 | def insert_all(): |
| 64 | for key in self.keys: |
| 65 | self.tree[key] = key * 2 |
| 66 | |
| 67 | total_time, per_op_time = self.measure_operation(insert_all) |
| 68 | |
| 69 | return { |
| 70 | "total_time": total_time, |
| 71 | "per_operation_ns": per_op_time * 1e9 / self.tree_size, |
| 72 | "operations_per_second": self.tree_size / total_time, |
| 73 | } |
| 74 | |
| 75 | def test_lookup_performance(self) -> Dict[str, float]: |
no outgoing calls