From 6209ca07957da5fa525168b303bea2b06e9a5e90 Mon Sep 17 00:00:00 2001
From: Ivo Steinbrecher <ivo.steinbrecher@unibw.de>
Date: Wed, 17 Jun 2026 18:17:24 +0200
Subject: [PATCH] Add performance tests

---
 pyproject.toml                    |   1 +
 tests/test_cubitpy_performance.py | 131 ++++++++++++++++++++++++++++++
 2 files changed, 132 insertions(+)
 create mode 100644 tests/test_cubitpy_performance.py

diff --git a/pyproject.toml b/pyproject.toml
index ca7e83b..13a441a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,6 +32,7 @@ Issues = "https://github.com/imcs-compsim/cubitpy/issues/"
 dev = [
   "pre-commit",
   "pytest",
+  "pytest-benchmark",
   "pytest-cov",
   "deepdiff",
 ]
diff --git a/tests/test_cubitpy_performance.py b/tests/test_cubitpy_performance.py
new file mode 100644
index 0000000..ef3f841
--- /dev/null
+++ b/tests/test_cubitpy_performance.py
@@ -0,0 +1,131 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2018-2026 CubitPy Authors
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+"""This script is used to test the performance of CubitPy."""
+
+import warnings
+from typing import Callable
+
+import numpy as np
+import pytest
+
+from cubitpy.conf import cupy
+from cubitpy.cubitpy import CubitPy
+
+
+@pytest.fixture()
+def benchmark_cubitpy(benchmark, request) -> Callable:
+    """Return a function that can be used to benchmark CubitPy functions."""
+
+    def _benchmark_cubitpy(
+        function: Callable,
+        *,
+        reference_times: list[float],
+        rounds: int,
+        iterations: int,
+        **kwargs,
+    ):
+        """Benchmark a CubitPy function.
+
+        Args:
+            function: The function to benchmark.
+            reference_times: A list of two reference times, one for local and one for remote execution.
+            rounds: The number of rounds to run the benchmark.
+            iterations: The number of iterations to run the benchmark in each round.
+            **kwargs: Additional keyword arguments to pass to the benchmark function.
+
+        Returns:
+            The result of the benchmark function.
+        """
+        reference_time = (
+            reference_times[0] if not cupy.is_remote() else reference_times[1]
+        )
+        return_value = benchmark.pedantic(
+            function, rounds=rounds, iterations=iterations, **kwargs
+        )
+        mean_run_time = benchmark.stats.stats.mean
+        if mean_run_time > reference_time:
+            warnings.warn(
+                f"{request.node.name}: mean runtime {mean_run_time * 1e6} us exceeds {reference_time * 1e6} us"
+            )
+        return return_value
+
+    return _benchmark_cubitpy
+
+
+def test_cubitpy_performance_object_creation(benchmark_cubitpy):
+    """Check the performance of object creation."""
+
+    cubit = CubitPy()
+    cubit.cmd("brick x 1 y 1 z 1")
+
+    created_objects = []
+
+    benchmark_cubitpy(
+        lambda: created_objects.append(cubit.body(1)),
+        reference_times=[0.0004, 0.0006],
+        rounds=10,
+        iterations=500,
+    )
+
+
+def test_cubitpy_performance_operations(benchmark_cubitpy):
+    """Create a block and move it around numerous times to check the
+    performance of the execnet connection."""
+
+    cubit = CubitPy()
+    cubit.cmd("brick x 1 y 1 z 1")
+    body = cubit.body(1)
+    vector = np.array([0.01, 0.02, 0.03])
+
+    benchmark_cubitpy(
+        lambda: cubit.move(body, vector),
+        reference_times=[0.00065, 0.00082],
+        rounds=10,
+        iterations=500,
+    )
+
+
+def test_cubitpy_performance_receive_large_data(benchmark_cubitpy):
+    """Check the performance of receiving large data from CubitPy."""
+
+    cubit = CubitPy()
+
+    benchmark_cubitpy(
+        cubit.cubit.get_self_dir,
+        reference_times=[0.0065, 0.0082],
+        rounds=10,
+        iterations=100,
+    )
+
+
+def test_cubitpy_performance_send_large_data(benchmark_cubitpy):
+    """Check the performance of sending large data to CubitPy."""
+
+    cubit = CubitPy()
+    large_string = "a" * 1_000
+
+    benchmark_cubitpy(
+        lambda: cubit.cmd(f'echo "{large_string}"'),
+        reference_times=[0.0085, 0.0085],
+        rounds=10,
+        iterations=100,
+    )