@@ -479,17 +479,23 @@ def compile_trampolines_for_all_functions():
479479if f"py::foo_fork:{ script } in line or f"py::bar_fork:{ script } in line :
480480self .assertIn (line ,child_perf_file_contents )
481481
482- def _is_kernel_version_at_least (major ,minor ):
482+
483+ def _is_perf_vesion_at_least (major ,minor ):
484+ # The output of perf --version looks like "perf version 6.7-3" but
485+ # it can also be perf version "perf version 5.15.143"
483486try :
484- with open ("/proc/version" )as f :
485- version = f .readline ().split ()[2 ]
486- except FileNotFoundError :
487+ output = subprocess .check_output (["perf" ,"--version" ],text = True )
488+ except (subprocess .CalledProcessError ,FileNotFoundError ):
487489return False
490+ version = output .split ()[2 ]
491+ version = version .split ("-" )[0 ]
488492version = version .split ("." )
489- return int (version [0 ])> major or (int (version [0 ])== major and int (version [1 ])>= minor )
493+ version = tuple (map (int ,version ))
494+ return version >= (major ,minor )
495+
490496
491497@unittest .skipUnless (perf_command_works (),"perf command doesn't work" )
492- @unittest .skipUnless (_is_kernel_version_at_least (6 ,6 ),"perf command may not work due to a perf bug" )
498+ @unittest .skipUnless (_is_perf_vesion_at_least (6 ,6 ),"perf command may not work due to a perf bug" )
493499class TestPerfProfilerWithDwarf (unittest .TestCase ,TestPerfProfilerMixin ):
494500def run_perf (self ,script_dir ,script ,activate_trampoline = True ):
495501if activate_trampoline :