ray/test/microbenchmarks.py
Robert Nishihara 515da7721a Change ray.worker.cleanup -> ray.shutdown and improve API documentation. (#2374)
* Change ray.worker.cleanup -> ray.shutdown and improve API documentation.

* Deprecate ray.worker.cleanup() gracefully.

* Fix linting
2018-07-12 12:00:00 -07:00

120 lines
4.5 KiB
Python

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import os
import unittest
import ray
import sys
import time
import numpy as np
import ray.test.test_functions as test_functions
if sys.version_info >= (3, 0):
from importlib import reload
class MicroBenchmarkTest(unittest.TestCase):
def tearDown(self):
ray.shutdown()
def testTiming(self):
reload(test_functions)
ray.init(num_workers=3)
# Measure the time required to submit a remote task to the scheduler.
elapsed_times = []
for _ in range(1000):
start_time = time.time()
test_functions.empty_function.remote()
end_time = time.time()
elapsed_times.append(end_time - start_time)
elapsed_times = np.sort(elapsed_times)
average_elapsed_time = sum(elapsed_times) / 1000
print("Time required to submit an empty function call:")
print(" Average: {}".format(average_elapsed_time))
print(" 90th percentile: {}".format(elapsed_times[900]))
print(" 99th percentile: {}".format(elapsed_times[990]))
print(" worst: {}".format(elapsed_times[999]))
# average_elapsed_time should be about 0.00038.
# Measure the time required to submit a remote task to the scheduler
# (where the remote task returns one value).
elapsed_times = []
for _ in range(1000):
start_time = time.time()
test_functions.trivial_function.remote()
end_time = time.time()
elapsed_times.append(end_time - start_time)
elapsed_times = np.sort(elapsed_times)
average_elapsed_time = sum(elapsed_times) / 1000
print("Time required to submit a trivial function call:")
print(" Average: {}".format(average_elapsed_time))
print(" 90th percentile: {}".format(elapsed_times[900]))
print(" 99th percentile: {}".format(elapsed_times[990]))
print(" worst: {}".format(elapsed_times[999]))
# average_elapsed_time should be about 0.001.
# Measure the time required to submit a remote task to the scheduler
# and get the result.
elapsed_times = []
for _ in range(1000):
start_time = time.time()
x = test_functions.trivial_function.remote()
ray.get(x)
end_time = time.time()
elapsed_times.append(end_time - start_time)
elapsed_times = np.sort(elapsed_times)
average_elapsed_time = sum(elapsed_times) / 1000
print("Time required to submit a trivial function call and get the "
"result:")
print(" Average: {}".format(average_elapsed_time))
print(" 90th percentile: {}".format(elapsed_times[900]))
print(" 99th percentile: {}".format(elapsed_times[990]))
print(" worst: {}".format(elapsed_times[999]))
# average_elapsed_time should be about 0.0013.
# Measure the time required to do do a put.
elapsed_times = []
for _ in range(1000):
start_time = time.time()
ray.put(1)
end_time = time.time()
elapsed_times.append(end_time - start_time)
elapsed_times = np.sort(elapsed_times)
average_elapsed_time = sum(elapsed_times) / 1000
print("Time required to put an int:")
print(" Average: {}".format(average_elapsed_time))
print(" 90th percentile: {}".format(elapsed_times[900]))
print(" 99th percentile: {}".format(elapsed_times[990]))
print(" worst: {}".format(elapsed_times[999]))
# average_elapsed_time should be about 0.00087.
def testCache(self):
ray.init(num_workers=1)
A = np.random.rand(1, 1000000)
v = np.random.rand(1000000)
A_id = ray.put(A)
v_id = ray.put(v)
a = time.time()
for i in range(100):
A.dot(v)
b = time.time() - a
c = time.time()
for i in range(100):
ray.get(A_id).dot(ray.get(v_id))
d = time.time() - c
if d > 1.5 * b:
if os.getenv("TRAVIS") is None:
raise Exception("The caching test was too slow. "
"d = {}, b = {}".format(d, b))
else:
print("WARNING: The caching test was too slow. "
"d = {}, b = {}".format(d, b))
if __name__ == "__main__":
unittest.main(verbosity=2)