Patch #645894: Use getrusage for computing the time consumption in
profile.py if available.
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@ -107,6 +107,20 @@ if hasattr(os, "times"):
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t = timer()
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return t[0] + t[1]
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# Using getrusage(3) is better than clock(3) if available:
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# on some systems (e.g. FreeBSD), getrusage has a higher resolution
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# Furthermore, on a POSIX system, returns microseconds, which
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# wrap around after 36min.
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_has_res = 0
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try:
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import resource
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resgetrusage = lambda: resource.getrusage(resource.RUSAGE_SELF)
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def _get_time_resource(timer=resgetrusage):
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t = timer()
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return t[0] + t[1]
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_has_res = 1
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except ImportError:
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pass
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class Profile:
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"""Profiler class.
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@ -159,8 +173,12 @@ class Profile:
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bias = self.bias
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self.bias = bias # Materialize in local dict for lookup speed.
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if timer is None:
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if os.name == 'mac':
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if not timer:
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if _has_res:
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self.timer = resgetrusage
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self.dispatcher = self.trace_dispatch
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self.get_time = _get_time_resource
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elif os.name == 'mac':
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self.timer = MacOS.GetTicks
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self.dispatcher = self.trace_dispatch_mac
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self.get_time = _get_time_mac
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@ -64,6 +64,9 @@ Extension Modules
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Library
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-------
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- Patch #645894: Use getrusage for computing the time consumption in
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profile.py if available.
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- Patch #1046831: Use get_python_version where appropriate in sysconfig.py.
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- Patch #1117454: Remove code to special-case cookies without values
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