⚡️ Speed up method _Resource.get_or_create by 6%

[codeflash-ai]

📄 6% (0.06x) speedup for _Resource.get_or_create in google/cloud/aiplatform/metadata/resource.py

⏱️ Runtime : 337 milliseconds → 317 milliseconds (best of 15 runs)

📝 Explanation and details

The optimized code achieves a 6% speedup through three key micro-optimizations:

1. Dictionary Pre-binding in __init__: The original code constructs the parent_resource_name_fields dictionary inline within the utils.full_resource_name() call. The optimized version pre-constructs this dictionary in a separate variable, reducing overhead during the function call.

2. Method Lookup Caching: Instead of calling getattr(self.api_client, self._getter_method) directly within the function call, the optimized version stores the result in getter_method variable first. This avoids redundant attribute lookups during the API call.

3. Explicit None Comparisons: The condition if not resource: was changed to if resource is None: in get_or_create(), and if resource: became if resource is not None: in __init__. This provides slightly faster boolean evaluation by avoiding the __bool__ method call on the resource object.

These optimizations primarily benefit scenarios with frequent resource initialization, particularly when resources don't exist and need to be created (as seen in the test cases). The improvements are most noticeable in high-frequency usage patterns where the small per-call reductions accumulate meaningfully. The line profiler shows the main performance bottleneck remains the API calls themselves (~93% of time), but these micro-optimizations reduce the Python-level overhead around those calls.

✅ Correctness verification report:

Test	Status
⚙️ Existing Unit Tests	✅ 113 Passed
🌀 Generated Regression Tests	🔘 None Found
⏪ Replay Tests	🔘 None Found
🔎 Concolic Coverage Tests	🔘 None Found
📊 Tests Coverage	100.0%

⚙️ Existing Unit Tests and Runtime

Test File::Test Function	Original ⏱️	Optimized ⏱️	Speedup
unit/aiplatform/test_metadata_resources.py::TestArtifact.test_get_or_create_artifact	40.2ms	37.9ms	6.14%✅
unit/aiplatform/test_metadata_resources.py::TestContext.test_add_artifacts_and_executions	38.1ms	38.3ms	-0.514%⚠️
unit/aiplatform/test_metadata_resources.py::TestContext.test_add_artifacts_only	38.4ms	38.0ms	1.07%✅
unit/aiplatform/test_metadata_resources.py::TestContext.test_add_executions_only	38.0ms	31.3ms	21.4%✅
unit/aiplatform/test_metadata_resources.py::TestContext.test_get_or_create_context	40.3ms	38.3ms	5.33%✅
unit/aiplatform/test_metadata_resources.py::TestExecution.test_add_artifact	28.0ms	27.8ms	0.785%✅
unit/aiplatform/test_metadata_resources.py::TestExecution.test_add_vertex_model	28.3ms	28.2ms	0.089%✅
unit/aiplatform/test_metadata_resources.py::TestExecution.test_add_vertex_model_not_resolved	24.8ms	27.8ms	-10.9%⚠️
unit/aiplatform/test_metadata_resources.py::TestExecution.test_get_or_create_execution	32.7ms	21.5ms	52.0%✅
unit/aiplatform/test_metadata_resources.py::TestExecution.test_query_input_and_output_artifacts	28.3ms	28.3ms	-0.101%⚠️

To edit these changes git checkout codeflash/optimize-_Resource.get_or_create-mgipu9p1 and push.