René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"perf trampoline tests fail after BOLT optimizations","articleBody":"# Bug report\n\n### Bug description:\n\nAs initially reported in https://github.com/python/cpython/pull/128845. The following tests fail\n\n```\ntest_sys_api (test.test_perf_profiler.TestPerfTrampoline.test_sys_api) ... FAIL\ntest_trampoline_works (test.test_perf_profiler.TestPerfTrampoline.test_trampoline_works) ... FAIL\ntest_trampoline_works_with_forks (test.test_perf_profiler.TestPerfTrampoline.test_trampoline_works_with_forks) ... FAIL\n\n======================================================================\nFAIL: test_sys_api (test.test_perf_profiler.TestPerfTrampoline.test_sys_api)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n  File \"/home/runner/work/cpython/cpython-ro-srcdir/Lib/test/test_perf_profiler.py\", line 203, in test_sys_api\n    self.assertIn(f\"py::spam:{script}\", perf_file_contents)\n    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\nAssertionError: 'py::spam:/tmp/test_python_qxe1_ajb/tmpqablk9qp/perftest.py' not found in '7f2d97946000 80600b py::baz:/tmp/test_python_qxe1_ajb/tmpqablk9qp/perftest.py\\n'\n\n======================================================================\nFAIL: test_trampoline_works (test.test_perf_profiler.TestPerfTrampoline.test_trampoline_works)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n  File \"/home/runner/work/cpython/cpython-ro-srcdir/Lib/test/test_perf_profiler.py\", line 91, in test_trampoline_works\n    self.assertIsNotNone(\n    ~~~~~~~~~~~~~~~~~~~~^\n        perf_line, f\"Could not find {expected_symbol} in perf file\"\n        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n    )\n    ^\nAssertionError: unexpectedly None : Could not find py::foo:/tmp/test_python_qxe1_ajb/tmpdd3d4w9f/perftest.py in perf file\n\n======================================================================\nFAIL: test_trampoline_works_with_forks (test.test_perf_profiler.TestPerfTrampoline.test_trampoline_works_with_forks)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n  File \"/home/runner/work/cpython/cpython-ro-srcdir/Lib/test/test_perf_profiler.py\", line 145, in test_trampoline_works_with_forks\n    self.assertEqual(process.returncode, 0)\n    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^\nAssertionError: -11 != 0\n\n----------------------------------------------------------------------\nRan 3 tests in 0.463s\n\nFAILED (failures=3)\ntest test_perf_profiler failed\n1 test failed again:\n    test_perf_profiler\n```\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\nLinux","author":{"url":"https://github.com/zanieb","@type":"Person","name":"zanieb"},"datePublished":"2025-01-15T14:48:55.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/128883/cpython/issues/128883"}