LXR qemu/tests/migration/guestperf/comparison.py

   1#
   2# Migration test scenario comparison mapping
   3#
   4# Copyright (c) 2016 Red Hat, Inc.
   5#
   6# This library is free software; you can redistribute it and/or
   7# modify it under the terms of the GNU Lesser General Public
   8# License as published by the Free Software Foundation; either
   9# version 2.1 of the License, or (at your option) any later version.
  10#
  11# This library is distributed in the hope that it will be useful,
  12# but WITHOUT ANY WARRANTY; without even the implied warranty of
  13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14# Lesser General Public License for more details.
  15#
  16# You should have received a copy of the GNU Lesser General Public
  17# License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18#
  19
  20from guestperf.scenario import Scenario
  21
  22class Comparison(object):
  23    def __init__(self, name, scenarios):
  24        self._name = name
  25        self._scenarios = scenarios
  26
  27COMPARISONS = [
  28    # Looking at effect of pausing guest during migration
  29    # at various stages of iteration over RAM
  30    Comparison("pause-iters", scenarios = [
  31        Scenario("pause-iters-0",
  32                 pause=True, pause_iters=0),
  33        Scenario("pause-iters-1",
  34                 pause=True, pause_iters=1),
  35        Scenario("pause-iters-5",
  36                 pause=True, pause_iters=5),
  37        Scenario("pause-iters-20",
  38                 pause=True, pause_iters=20),
  39    ]),
  40
  41
  42    # Looking at use of post-copy in relation to bandwidth
  43    # available for migration
  44    Comparison("post-copy-bandwidth", scenarios = [
  45        Scenario("post-copy-bw-100mbs",
  46                 post_copy=True, bandwidth=12),
  47        Scenario("post-copy-bw-300mbs",
  48                 post_copy=True, bandwidth=37),
  49        Scenario("post-copy-bw-1gbs",
  50                 post_copy=True, bandwidth=125),
  51        Scenario("post-copy-bw-10gbs",
  52                 post_copy=True, bandwidth=1250),
  53        Scenario("post-copy-bw-100gbs",
  54                 post_copy=True, bandwidth=12500),
  55    ]),
  56
  57
  58    # Looking at effect of starting post-copy at different
  59    # stages of the migration
  60    Comparison("post-copy-iters", scenarios = [
  61        Scenario("post-copy-iters-0",
  62                 post_copy=True, post_copy_iters=0),
  63        Scenario("post-copy-iters-1",
  64                 post_copy=True, post_copy_iters=1),
  65        Scenario("post-copy-iters-5",
  66                 post_copy=True, post_copy_iters=5),
  67        Scenario("post-copy-iters-20",
  68                 post_copy=True, post_copy_iters=20),
  69    ]),
  70
  71
  72    # Looking at effect of auto-converge with different
  73    # throttling percentage step rates
  74    Comparison("auto-converge-iters", scenarios = [
  75        Scenario("auto-converge-step-5",
  76                 auto_converge=True, auto_converge_step=5),
  77        Scenario("auto-converge-step-10",
  78                 auto_converge=True, auto_converge_step=10),
  79        Scenario("auto-converge-step-20",
  80                 auto_converge=True, auto_converge_step=20),
  81    ]),
  82
  83
  84    # Looking at use of auto-converge in relation to bandwidth
  85    # available for migration
  86    Comparison("auto-converge-bandwidth", scenarios = [
  87        Scenario("auto-converge-bw-100mbs",
  88                 auto_converge=True, bandwidth=12),
  89        Scenario("auto-converge-bw-300mbs",
  90                 auto_converge=True, bandwidth=37),
  91        Scenario("auto-converge-bw-1gbs",
  92                 auto_converge=True, bandwidth=125),
  93        Scenario("auto-converge-bw-10gbs",
  94                 auto_converge=True, bandwidth=1250),
  95        Scenario("auto-converge-bw-100gbs",
  96                 auto_converge=True, bandwidth=12500),
  97    ]),
  98
  99
 100    # Looking at effect of multi-thread compression with
 101    # varying numbers of threads
 102    Comparison("compr-mt", scenarios = [
 103        Scenario("compr-mt-threads-1",
 104                 compression_mt=True, compression_mt_threads=1),
 105        Scenario("compr-mt-threads-2",
 106                 compression_mt=True, compression_mt_threads=2),
 107        Scenario("compr-mt-threads-4",
 108                 compression_mt=True, compression_mt_threads=4),
 109    ]),
 110
 111
 112    # Looking at effect of xbzrle compression with varying
 113    # cache sizes
 114    Comparison("compr-xbzrle", scenarios = [
 115        Scenario("compr-xbzrle-cache-5",
 116                 compression_xbzrle=True, compression_xbzrle_cache=5),
 117        Scenario("compr-xbzrle-cache-10",
 118                 compression_xbzrle=True, compression_xbzrle_cache=10),
 119        Scenario("compr-xbzrle-cache-20",
 120                 compression_xbzrle=True, compression_xbzrle_cache=10),
 121        Scenario("compr-xbzrle-cache-50",
 122                 compression_xbzrle=True, compression_xbzrle_cache=50),
 123    ]),
 124
 125
 126    # Looking at effect of multifd with
 127    # varying numbers of channels
 128    Comparison("compr-multifd", scenarios = [
 129        Scenario("compr-multifd-channels-4",
 130                 multifd=True, multifd_channels=2),
 131        Scenario("compr-multifd-channels-8",
 132                 multifd=True, multifd_channels=8),
 133        Scenario("compr-multifd-channels-32",
 134                 multifd=True, multifd_channels=32),
 135        Scenario("compr-multifd-channels-64",
 136                 multifd=True, multifd_channels=64),
 137    ]),
 138]
 139