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))