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 bench_block_job import bench_block_copy, drv_file, drv_nbd
  23
  24
  25 def 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.
  33 ssd_source = '/path-to-raw-source-image-at-ssd'
  34 ssd_target = '/path-to-raw-target-image-at-ssd'
  35 hdd_target = '/path-to-raw-source-image-at-hdd'
  36 nbd_ip = 'nbd-ip-addr'
  37 nbd_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.
  41 test_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.
  61 test_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
  79 result = simplebench.bench(bench_func, test_envs, test_cases, count=3)
  80 print(simplebench.ascii(result))