120 lines
3.9 KiB
Python
Executable File
120 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python
|
|
#
|
|
# Benchmark block jobs
|
|
#
|
|
# Copyright (c) 2019 Virtuozzo International GmbH.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
|
|
import sys
|
|
import os
|
|
import socket
|
|
import json
|
|
|
|
sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'python'))
|
|
from qemu.machine import QEMUMachine
|
|
from qemu.qmp import QMPConnectError
|
|
|
|
|
|
def bench_block_job(cmd, cmd_args, qemu_args):
|
|
"""Benchmark block-job
|
|
|
|
cmd -- qmp command to run block-job (like blockdev-backup)
|
|
cmd_args -- dict of qmp command arguments
|
|
qemu_args -- list of Qemu command line arguments, including path to Qemu
|
|
binary
|
|
|
|
Returns {'seconds': int} on success and {'error': str} on failure, dict may
|
|
contain addional 'vm-log' field. Return value is compatible with
|
|
simplebench lib.
|
|
"""
|
|
|
|
vm = QEMUMachine(qemu_args[0], args=qemu_args[1:])
|
|
|
|
try:
|
|
vm.launch()
|
|
except OSError as e:
|
|
return {'error': 'popen failed: ' + str(e)}
|
|
except (QMPConnectError, socket.timeout):
|
|
return {'error': 'qemu failed: ' + str(vm.get_log())}
|
|
|
|
try:
|
|
res = vm.qmp(cmd, **cmd_args)
|
|
if res != {'return': {}}:
|
|
vm.shutdown()
|
|
return {'error': '"{}" command failed: {}'.format(cmd, str(res))}
|
|
|
|
e = vm.event_wait('JOB_STATUS_CHANGE')
|
|
assert e['data']['status'] == 'created'
|
|
start_ms = e['timestamp']['seconds'] * 1000000 + \
|
|
e['timestamp']['microseconds']
|
|
|
|
e = vm.events_wait((('BLOCK_JOB_READY', None),
|
|
('BLOCK_JOB_COMPLETED', None),
|
|
('BLOCK_JOB_FAILED', None)), timeout=True)
|
|
if e['event'] not in ('BLOCK_JOB_READY', 'BLOCK_JOB_COMPLETED'):
|
|
vm.shutdown()
|
|
return {'error': 'block-job failed: ' + str(e),
|
|
'vm-log': vm.get_log()}
|
|
end_ms = e['timestamp']['seconds'] * 1000000 + \
|
|
e['timestamp']['microseconds']
|
|
finally:
|
|
vm.shutdown()
|
|
|
|
return {'seconds': (end_ms - start_ms) / 1000000.0}
|
|
|
|
|
|
# Bench backup or mirror
|
|
def bench_block_copy(qemu_binary, cmd, source, target):
|
|
"""Helper to run bench_block_job() for mirror or backup"""
|
|
assert cmd in ('blockdev-backup', 'blockdev-mirror')
|
|
|
|
source['node-name'] = 'source'
|
|
target['node-name'] = 'target'
|
|
|
|
return bench_block_job(cmd,
|
|
{'job-id': 'job0', 'device': 'source',
|
|
'target': 'target', 'sync': 'full'},
|
|
[qemu_binary,
|
|
'-blockdev', json.dumps(source),
|
|
'-blockdev', json.dumps(target)])
|
|
|
|
|
|
def drv_file(filename):
|
|
return {'driver': 'file', 'filename': filename,
|
|
'cache': {'direct': True}, 'aio': 'native'}
|
|
|
|
|
|
def drv_nbd(host, port):
|
|
return {'driver': 'nbd',
|
|
'server': {'type': 'inet', 'host': host, 'port': port}}
|
|
|
|
|
|
if __name__ == '__main__':
|
|
import sys
|
|
|
|
if len(sys.argv) < 4:
|
|
print('USAGE: {} <qmp block-job command name> '
|
|
'<json string of arguments for the command> '
|
|
'<qemu binary path and arguments>'.format(sys.argv[0]))
|
|
exit(1)
|
|
|
|
res = bench_block_job(sys.argv[1], json.loads(sys.argv[2]), sys.argv[3:])
|
|
if 'seconds' in res:
|
|
print('{:.2f}'.format(res['seconds']))
|
|
else:
|
|
print(res)
|