python · ericsnowcurrently · Jun 7, 2022 · May 15, 2022 · May 15, 2022 · May 24, 2022
diff --git a/doc/benchmarks.rst b/doc/benchmarks.rst
@@ -108,6 +108,11 @@ See `pyaes <https://github.com/ricmoo/pyaes>`_: A pure-Python implementation of
 the AES block cipher algorithm and the common modes of operation (CBC, CFB,
 CTR, ECB and OFB).
 
+deepcopy
+--------
+
+Benchmark the Python `copy.deepcopy` method. The `deepcopy` method is
+performed on a nested dictionary and a dataclass.
 
 deltablue
 ---------

diff --git a/pyperformance/data-files/benchmarks/MANIFEST b/pyperformance/data-files/benchmarks/MANIFEST
@@ -5,6 +5,7 @@ name	metafile
 chameleon	<local>
 chaos	<local>
 crypto_pyaes	<local>
+deepcopy	<local>
 deltablue	<local>
 django_template	<local>
 dulwich_log	<local>

diff --git a/pyperformance/data-files/benchmarks/bm_deepcopy/pyproject.toml b/pyperformance/data-files/benchmarks/bm_deepcopy/pyproject.toml
@@ -0,0 +1,9 @@
+[project]
+name = "pyperformance_bm_deepcopy"
+requires-python = ">=3.8"
+dependencies = ["pyperf"]
+urls = {repository = "https://github.com/python/pyperformance"}
+dynamic = ["version"]
+
+[tool.pyperformance]
+name = "deepcopy"
diff --git a/pyperformance/data-files/benchmarks/bm_deepcopy/run_benchmark.py b/pyperformance/data-files/benchmarks/bm_deepcopy/run_benchmark.py
@@ -0,0 +1,42 @@
+"""
+Benchmark to measure performance of the python builtin method copy.deepcopy
+
+Performance is tested on a nested dictionary and a dataclass
+
+Author: Pieter Eendebak
+
+"""
+import copy
+import pyperf
+from dataclasses import dataclass
+
+@dataclass
+class A:
+    string : str
+    lst : list
+    boolean : bool
+
+
+def benchmark(n):
+    a={'list': [1,2,3,43], 't': (1,2,3), 'str': 'hello', 'subdict': {'a': True}}
+    dc=A('hello', [1,2,3], True)
+
+    for ii in range(n):
+
+        for jj in range(60):
+            _ = copy.deepcopy(a)
+
+        for s in ['red', 'blue', 'green']:
+            dc.string = s
+            for ii in range(10):
+                dc.lst[0] = ii
+                for b in [True, False]:
+                    dc.boolean=b
+                    _ = copy.deepcopy(dc)
+
+
+if __name__ == "__main__":
+    runner = pyperf.Runner()
+    runner.metadata['description'] = "deepcopy benchmark"
+
+    runner.bench_func('deepcopy', benchmark, 200)