Fix version for v6.2.0-rc2 release
[qemu.git] / scripts / simplebench / bench-example.py
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
21 import simplebench
22 from results_to_text import results_to_text
23 from bench_block_job import bench_block_copy, drv_file, drv_nbd
24
25
26 def bench_func(env, case):
27 """ Handle one "cell" of benchmarking table. """
28 return bench_block_copy(env['qemu_binary'], env['cmd'], {}
29 case['source'], case['target'])
30
31
32 # You may set the following five variables to correct values, to turn this
33 # example to real benchmark.
34 ssd_source = '/path-to-raw-source-image-at-ssd'
35 ssd_target = '/path-to-raw-target-image-at-ssd'
36 hdd_target = '/path-to-raw-source-image-at-hdd'
37 nbd_ip = 'nbd-ip-addr'
38 nbd_port = 'nbd-port-number'
39
40 # Test-cases are "rows" in benchmark resulting table, 'id' is a caption for
41 # the row, other fields are handled by bench_func.
42 test_cases = [
43 {
44 'id': 'ssd -> ssd',
45 'source': drv_file(ssd_source),
46 'target': drv_file(ssd_target)
47 },
48 {
49 'id': 'ssd -> hdd',
50 'source': drv_file(ssd_source),
51 'target': drv_file(hdd_target)
52 },
53 {
54 'id': 'ssd -> nbd',
55 'source': drv_file(ssd_source),
56 'target': drv_nbd(nbd_ip, nbd_port)
57 },
58 ]
59
60 # Test-envs are "columns" in benchmark resulting table, 'id is a caption for
61 # the column, other fields are handled by bench_func.
62 test_envs = [
63 {
64 'id': 'backup-1',
65 'cmd': 'blockdev-backup',
66 'qemu_binary': '/path-to-qemu-binary-1'
67 },
68 {
69 'id': 'backup-2',
70 'cmd': 'blockdev-backup',
71 'qemu_binary': '/path-to-qemu-binary-2'
72 },
73 {
74 'id': 'mirror',
75 'cmd': 'blockdev-mirror',
76 'qemu_binary': '/path-to-qemu-binary-1'
77 }
78 ]
79
80 result = simplebench.bench(bench_func, test_envs, test_cases, count=3)
81 print(results_to_text(result))