forked from M-Labs/artiq
test: add array transfer test
200 kB/s, more than a factor of 10 slower than the bare string transfer Signed-off-by: Robert Jördens <rj@quartiq.de>
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@ -22,6 +22,10 @@ class _Transfer(EnvExperiment):
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def sink(self, data):
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assert data == self.data
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@rpc(flags={"async"})
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def sink_array(self, data):
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assert data == [0]*(1 << 15)
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@kernel
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def host_to_device(self):
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t0 = self.core.get_rtio_counter_mu()
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@ -36,6 +40,16 @@ class _Transfer(EnvExperiment):
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t1 = self.core.get_rtio_counter_mu()
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return len(self.data)/self.core.mu_to_seconds(t1-t0)
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@kernel
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def device_to_host_array(self):
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#data = [[0]*8 for _ in range(1 << 12)]
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data = [0]*(1 << 15)
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t0 = self.core.get_rtio_counter_mu()
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self.sink_array(data)
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t1 = self.core.get_rtio_counter_mu()
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return ((len(data)*4)/
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self.core.mu_to_seconds(t1-t0))
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class TransferTest(ExperimentCase):
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@unittest.skipUnless(artiq_low_latency,
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@ -54,6 +68,14 @@ class TransferTest(ExperimentCase):
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print(device_to_host_rate, "B/s")
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self.assertGreater(device_to_host_rate, 2.3e6)
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@unittest.skipUnless(artiq_low_latency,
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"timings are dependent on CPU load and network conditions")
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def test_device_to_host_array(self):
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exp = self.create(_Transfer)
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rate = exp.device_to_host_array()
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print(rate, "B/s")
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self.assertGreater(rate, .15e6)
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class _KernelOverhead(EnvExperiment):
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def build(self):
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