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80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
import timeit
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from structure import Structure
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from gi.repository import Gst
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Gst.init(None)
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PLAIN_STRUCTURE = r'thread-rusage, thread-id=(guint64)37268592, ts=(guint64)79416000, average-cpuload=(uint)1000, current-cpuload=(uint)1000, time=(guint64)79418045;'
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NESTED_STRUCTURE = r'latency.class, src=(structure)"scope\,\ type\=\(type\)gchararray\,\ related-to\=\(GstTracerValueScope\)GST_TRACER_VALUE_SCOPE_PAD\;", sink=(structure)"scope\,\ type\=\(type\)gchararray\,\ related-to\=\(GstTracerValueScope\)GST_TRACER_VALUE_SCOPE_PAD\;", time=(structure)"value\,\ type\=\(type\)guint64\,\ description\=\(string\)\"time\\\ it\\\ took\\\ for\\\ the\\\ buffer\\\ to\\\ go\\\ from\\\ src\\\ to\\\ sink\\\ ns\"\,\ flags\=\(GstTracerValueFlags\)GST_TRACER_VALUE_FLAGS_AGGREGATED\,\ min\=\(guint64\)0\,\ max\=\(guint64\)18446744073709551615\;";'
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NAT_STRUCTURE = Structure(PLAIN_STRUCTURE)
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GI_STRUCTURE = Gst.Structure.from_string(PLAIN_STRUCTURE)[0]
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# native python impl
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def nat_parse_plain():
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s = Structure(PLAIN_STRUCTURE)
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def nat_parse_nested():
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s = Structure(NESTED_STRUCTURE)
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def nat_get_name():
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return NAT_STRUCTURE.name
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def nat_get_value():
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return NAT_STRUCTURE.values['thread-id']
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# gstreamer impl via gi
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def gi_parse_plain():
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s = Gst.Structure.from_string(PLAIN_STRUCTURE)[0]
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def gi_parse_nested():
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s = Gst.Structure.from_string(NESTED_STRUCTURE)[0]
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def gi_get_name():
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return GI_STRUCTURE.get_name()
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def gi_get_value():
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return GI_STRUCTURE.get_value('thread-id')
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# perf test
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def perf(method, n, flavor):
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t = timeit.timeit(method + '()', 'from __main__ import ' + method, number=n)
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print("%6s: %lf s, (%lf calls/s)" % (flavor, t, (n / t)))
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if __name__ == '__main__':
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import argparse
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parser = argparse.ArgumentParser()
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parser.add_argument('-i', '--iterations', default=10000, type=int,
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help='number of iterations (default: 10000)')
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args = parser.parse_args()
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n = args.iterations
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print("parse_plain:")
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t = perf('nat_parse_plain', n, 'native')
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t = perf('gi_parse_plain', n, 'gi')
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print("parse_nested:")
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t = perf('nat_parse_nested', n, 'native')
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t = perf('gi_parse_nested', n, 'gi')
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print("get_name:")
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t = perf('nat_get_name', n, 'native')
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t = perf('gi_get_name', n, 'gi')
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print("get_value:")
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t = perf('nat_get_value', n, 'native')
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t = perf('gi_get_value', n, 'gi')
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