8000 gh-124613: Don't run perf tests in JIT builds by pablogsal · Pull Request #124792 · python/cpython · GitHub
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gh-124613: Don't run perf tests in JIT builds #124792

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Merged
merged 2 commits into from
Sep 30, 2024
Merged

gh-124613: Don't run perf tests in JIT builds #124792

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gh-124613: Don't run perf tests in JIT builds
pablogsal Sep 30, 2024
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pablogsal Sep 30, 2024
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16 changes: 14 additions & 2 deletions Lib/test/test_perf_profiler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,15 @@
raise unittest.SkipTest("test crash randomly on ASAN/MSAN/UBSAN build")


def is_jit_build():
cflags = (sysconfig.get_config_var("PY_CORE_CFLAGS") or '')
return "_Py_JIT" in cflags


if is_jit_build():
raise unittest.SkipTest("Perf support is not available in JIT builds")


def supports_trampoline_profiling():
perf_trampoline = sysconfig.get_config_var("PY_HAVE_PERF_TRAMPOLINE")
if not perf_trampoline:
Expand Down Expand Up @@ -229,7 +238,7 @@ def is_unwinding_reliable_with_frame_pointers():
cflags = sysconfig.get_config_var("PY_CORE_CFLAGS")
if not cflags:
return False
return "no-omit-frame-pointer" in cflags and "_Py_JIT" not in cflags
return "no-omit-frame-pointer" in cflags


def perf_command_works():
Expand Down Expand Up @@ -382,6 +391,7 @@ def baz(n):
self.assertNotIn(f"py::bar:{script}", stdout)
self.assertNotIn(f"py::baz:{script}", stdout)


@unittest.skipUnless(perf_command_works(), "perf command doesn't work")
@unittest.skipUnless(
is_unwinding_reliable_with_frame_pointers(),
Expand Down Expand Up @@ -494,7 +504,9 @@ def _is_perf_version_at_least(major, minor):


@unittest.skipUnless(perf_command_works(), "perf command doesn't work")
@unittest.skipUnless(_is_perf_version_at_least(6, 6), "perf command may not work due to a perf bug")
@unittest.skipUnless(
_is_perf_version_at_least(6, 6), "perf command may not work due to a perf bug"
)
class TestPerfProfilerWithDwarf(unittest.TestCase, TestPerfProfilerMixin):
def run_perf(self, script_dir, script, activate_trampoline=True):
if activate_trampoline:
Expand Down
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