LXR qemu/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
  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