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test: add kernel overhead test (#407)

This commit is contained in:
Sebastien Bourdeauducq 2018-01-28 01:00:59 +08:00
parent 3231d8b235
commit e8ed3475ea
1 changed files with 28 additions and 0 deletions

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@ -1,4 +1,5 @@
import os
import time
import unittest
from artiq.experiment import *
@ -52,3 +53,30 @@ class TransferTest(ExperimentCase):
device_to_host_rate = exp.device_to_host()
print(device_to_host_rate, "B/s")
self.assertGreater(device_to_host_rate, 2e6)
class _KernelOverhead(EnvExperiment):
def build(self):
self.setattr_device("core")
def kernel_overhead(self):
n = 100
t0 = time.monotonic()
for _ in range(n):
self.dummy_kernel()
t1 = time.monotonic()
return (t1-t0)/n
@kernel
def dummy_kernel(self):
pass
class KernelOverheadTest(ExperimentCase):
@unittest.skipUnless(artiq_low_latency,
"timings are dependent on CPU load and network conditions")
def test_kernel_overhead(self):
exp = self.create(_KernelOverhead)
kernel_overhead = exp.kernel_overhead()
print(kernel_overhead, "s")
self.assertLess(kernel_overhead, 0.5)