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# -------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
# --------------------------------------------------------------------------
import os
import datetime
import sys
from azure.storage.blob import (
BlockBlobService,
PageBlobService,
AppendBlobService,
)
import tests.settings_real as settings
# Warning:
# This script will take a while to run with everything enabled.
# Edit the lists below to enable only the blob sizes and connection
# counts that you are interested in.
# NAME, SIZE (MB), +ADD SIZE (B)
LOCAL_BLOCK_BLOB_FILES = [
('BLOC-0080M+000B', 80, 0),
('BLOC-0080M+013B', 80, 13),
('BLOC-0500M+000B', 500, 0),
('BLOC-2500M+000B', 2500, 0),
]
LOCAL_PAGE_BLOB_FILES = [
('PAGE-0072M+000B', 72, 0),
('PAGE-0072M+512B', 72, 512),
('PAGE-0500M+000B', 500, 0),
('PAGE-2500M+000B', 2500, 0),
]
LOCAL_APPEND_BLOB_FILES = [
('APPD-0072M+000B', 80, 0),
('APPD-0072M+512B', 80, 13),
('APPD-0500M+000B', 500, 0),
('APPD-2500M+000B', 2500, 0),
]
CONNECTION_COUNTS = [1, 2, 5, 10, 50]
CONTAINER_NAME = 'performance'
def input_file(name):
return 'input-' + name
def output_file(name):
return 'output-' + name
def create_random_content_file(name, size_in_megs, additional_byte_count=0):
file_name = input_file(name)
if not os.path.exists(file_name):
print('generating {0}'.format(name))
with open(file_name, 'wb') as stream:
for i in range(size_in_megs):
stream.write(os.urandom(1048576))
if additional_byte_count > 0:
stream.write(os.urandom(additional_byte_count))
def upload_blob(service, name, connections):
blob_name = name
file_name = input_file(name)
sys.stdout.write('\tUp:')
start_time = datetime.datetime.now()
if isinstance(service, BlockBlobService):
service.create_blob_from_path(
CONTAINER_NAME, blob_name, file_name, max_connections=connections)
elif isinstance(service, PageBlobService):
service.create_blob_from_path(
CONTAINER_NAME, blob_name, file_name, max_connections=connections)
elif isinstance(service, AppendBlobService):
service.append_blob_from_path(
CONTAINER_NAME, blob_name, file_name, max_connections=connections)
else:
service.create_blob_from_path(
CONTAINER_NAME, blob_name, file_name, max_connections=connections)
elapsed_time = datetime.datetime.now() - start_time
sys.stdout.write('{0}s'.format(elapsed_time.total_seconds()))
def download_blob(service, name, connections):
blob_name = name
target_file_name = output_file(name)
if os.path.exists(target_file_name):
os.remove(target_file_name)
sys.stdout.write('\tDn:')
start_time = datetime.datetime.now()
service.get_blob_to_path(
CONTAINER_NAME, blob_name, target_file_name, max_connections=connections)
elapsed_time = datetime.datetime.now() - start_time
sys.stdout.write('{0}s'.format(elapsed_time.total_seconds()))
def file_contents_equal(first_file_path, second_file_path):
first_size = os.path.getsize(first_file_path);
second_size = os.path.getsize(second_file_path)
if first_size != second_size:
return False
with open(first_file_path, 'rb') as first_stream:
with open(second_file_path, 'rb') as second_stream:
while True:
first_data = first_stream.read(1048576)
second_data = second_stream.read(1048576)
if first_data != second_data:
return False
if not first_data:
return True
def compare_files(name):
first_file_path = input_file(name)
second_file_path = output_file(name)
sys.stdout.write('\tCmp:')
if file_contents_equal(first_file_path, second_file_path):
sys.stdout.write('ok')
else:
sys.stdout.write('ERR!')
def process(service, blobs, counts):
for name, size_in_megs, additional in blobs:
create_random_content_file(name, size_in_megs, additional)
for name, _, _ in blobs:
for max_conn in counts:
sys.stdout.write('{0}\tParallel:{1}'.format(name, max_conn))
upload_blob(service, name, max_conn)
download_blob(service, name, max_conn)
compare_files(name)
print('')
print('')
def main():
bbs = BlockBlobService(settings.STORAGE_ACCOUNT_NAME, settings.STORAGE_ACCOUNT_KEY)
pbs = PageBlobService(settings.STORAGE_ACCOUNT_NAME, settings.STORAGE_ACCOUNT_KEY)
abs = AppendBlobService(settings.STORAGE_ACCOUNT_NAME, settings.STORAGE_ACCOUNT_KEY)
service.create_container(CONTAINER_NAME)
process(bbs, LOCAL_BLOCK_BLOB_FILES, CONNECTION_COUNTS)
process(pbs, LOCAL_PAGE_BLOB_FILES, CONNECTION_COUNTS)
process(abs, LOCAL_APPEND_BLOB_FILES, CONNECTION_COUNTS)
if __name__ == '__main__':
main()
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