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import pytest
from io import BytesIO
from leap.soledad.server._blobs import FilesystemBlobsBackend
from twisted.internet import defer
from twisted.web.client import FileBodyProducer
from twisted.internet._producer_helpers import _PullToPush
def create_write_test(amount, size):
@pytest.inlineCallbacks
@pytest.mark.benchmark(group='test_blobs_fs_backend_write')
def test(txbenchmark, payload, tmpdir):
"""
Write many blobs of the same size to the filesystem backend.
"""
backend = FilesystemBlobsBackend(blobs_path=tmpdir.strpath)
data = payload(size)
semaphore = defer.DeferredSemaphore(100)
deferreds = []
for i in xrange(amount):
producer = FileBodyProducer(BytesIO(data))
d = semaphore.run(backend.write_blob, 'user', str(i), producer)
deferreds.append(d)
yield txbenchmark(defer.gatherResults, deferreds)
return test
test_blobs_fs_backend_write_10_10000k = create_write_test(10, 10000 * 1000)
test_blobs_fs_backend_write_100_1000k = create_write_test(100, 1000 * 1000)
test_blobs_fs_backend_write_1000_100k = create_write_test(1000, 100 * 1000)
test_blobs_fs_backend_write_10000_10k = create_write_test(10000, 10 * 1000)
class DevNull(object):
def write(self, data):
pass
def registerProducer(self, producer, streaming):
producer = _PullToPush(producer, self)
producer.startStreaming()
def unregisterProducer(self):
pass
def finish(self):
pass
def create_read_test(amount, size):
@pytest.inlineCallbacks
@pytest.mark.benchmark(group='test_blobs_fs_backend_read')
def test(txbenchmark, payload, tmpdir):
"""
Read many blobs of the same size from the filesystem backend.
"""
backend = FilesystemBlobsBackend(blobs_path=tmpdir.strpath)
data = payload(size)
# first write blobs to the backend...
semaphore = defer.DeferredSemaphore(100)
deferreds = []
for i in xrange(amount):
producer = FileBodyProducer(BytesIO(data))
d = semaphore.run(backend.write_blob, 'user', str(i), producer)
deferreds.append(d)
yield defer.gatherResults(deferreds)
# ... then measure the read operation
deferreds = []
for i in xrange(amount):
consumer = DevNull()
d = semaphore.run(backend.read_blob, 'user', str(i), consumer)
deferreds.append(d)
yield txbenchmark(defer.gatherResults, deferreds)
return test
test_blobs_fs_backend_read_10_10000k = create_read_test(10, 10000 * 1000)
test_blobs_fs_backend_read_100_1000k = create_read_test(100, 1000 * 1000)
test_blobs_fs_backend_read_1000_100k = create_read_test(1000, 100 * 1000)
test_blobs_fs_backend_read_10000_10k = create_read_test(10000, 10 * 1000)
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