xref: /qemu/scripts/simplebench/bench-example.py (revision abff1abf) 
1#!/usr/bin/env python3
2#
3# Benchmark example
4#
5# Copyright (c) 2019 Virtuozzo International GmbH.
6#
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 2 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program.  If not, see <http://www.gnu.org/licenses/>.
19#
20
21import simplebench
22from bench_block_job import bench_block_copy, drv_file, drv_nbd
23
24
25def bench_func(env, case):
26    """ Handle one "cell" of benchmarking table. """
27    return bench_block_copy(env['qemu_binary'], env['cmd'],
28                            case['source'], case['target'])
29
30
31# You may set the following five variables to correct values, to turn this
32# example to real benchmark.
33ssd_source = '/path-to-raw-source-image-at-ssd'
34ssd_target = '/path-to-raw-target-image-at-ssd'
35hdd_target = '/path-to-raw-source-image-at-hdd'
36nbd_ip = 'nbd-ip-addr'
37nbd_port = 'nbd-port-number'
38
39# Test-cases are "rows" in benchmark resulting table, 'id' is a caption for
40# the row, other fields are handled by bench_func.
41test_cases = [
42    {
43        'id': 'ssd -> ssd',
44        'source': drv_file(ssd_source),
45        'target': drv_file(ssd_target)
46    },
47    {
48        'id': 'ssd -> hdd',
49        'source': drv_file(ssd_source),
50        'target': drv_file(hdd_target)
51    },
52    {
53        'id': 'ssd -> nbd',
54        'source': drv_file(ssd_source),
55        'target': drv_nbd(nbd_ip, nbd_port)
56    },
57]
58
59# Test-envs are "columns" in benchmark resulting table, 'id is a caption for
60# the column, other fields are handled by bench_func.
61test_envs = [
62    {
63        'id': 'backup-1',
64        'cmd': 'blockdev-backup',
65        'qemu_binary': '/path-to-qemu-binary-1'
66    },
67    {
68        'id': 'backup-2',
69        'cmd': 'blockdev-backup',
70        'qemu_binary': '/path-to-qemu-binary-2'
71    },
72    {
73        'id': 'mirror',
74        'cmd': 'blockdev-mirror',
75        'qemu_binary': '/path-to-qemu-binary-1'
76    }
77]
78
79result = simplebench.bench(bench_func, test_envs, test_cases, count=3)
80print(simplebench.ascii(result))
81