tests/migration: introduce multifd into guestperf
Guestperf tool does not cover the multifd-enabled migration
currently, it is worth supporting so that developers can
analysis the migration performance with all kinds of
migration.
To request that multifd is enabled, with 4 channels:
$ ./tests/migration/guestperf.py \
--multifd --multifd-channels 4 --output output.json
To run the entire standardized set of multifd-enabled
comparisons, with unix migration:
$ ./tests/migration/guestperf-batch.py \
--dst-host localhost --transport unix \
--filter compr-multifd* --output outputdir
Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Message-Id: <cfeeb04d17ad932c42a9871294058b77429ad1b7.1616171924.git.huangy81@chinatelecom.cn>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
diff --git a/tests/migration/guestperf/comparison.py b/tests/migration/guestperf/comparison.py
index ba2edbe..c03b3f6 100644
--- a/tests/migration/guestperf/comparison.py
+++ b/tests/migration/guestperf/comparison.py
@@ -121,4 +121,18 @@ def __init__(self, name, scenarios):
Scenario("compr-xbzrle-cache-50",
compression_xbzrle=True, compression_xbzrle_cache=50),
]),
+
+
+ # Looking at effect of multifd with
+ # varying numbers of channels
+ Comparison("compr-multifd", scenarios = [
+ Scenario("compr-multifd-channels-4",
+ multifd=True, multifd_channels=2),
+ Scenario("compr-multifd-channels-8",
+ multifd=True, multifd_channels=8),
+ Scenario("compr-multifd-channels-32",
+ multifd=True, multifd_channels=32),
+ Scenario("compr-multifd-channels-64",
+ multifd=True, multifd_channels=64),
+ ]),
]
diff --git a/tests/migration/guestperf/engine.py b/tests/migration/guestperf/engine.py
index 6b49aed..208e095 100644
--- a/tests/migration/guestperf/engine.py
+++ b/tests/migration/guestperf/engine.py
@@ -188,6 +188,22 @@ def _migrate(self, hardware, scenario, src, dst, connect_uri):
1024 * 1024 * 1024 / 100 *
scenario._compression_xbzrle_cache))
+ if scenario._multifd:
+ resp = src.command("migrate-set-capabilities",
+ capabilities = [
+ { "capability": "multifd",
+ "state": True }
+ ])
+ resp = src.command("migrate-set-parameters",
+ multifd_channels=scenario._multifd_channels)
+ resp = dst.command("migrate-set-capabilities",
+ capabilities = [
+ { "capability": "multifd",
+ "state": True }
+ ])
+ resp = dst.command("migrate-set-parameters",
+ multifd_channels=scenario._multifd_channels)
+
resp = src.command("migrate", uri=connect_uri)
post_copy = False
diff --git a/tests/migration/guestperf/scenario.py b/tests/migration/guestperf/scenario.py
index 28ef36c..de70d9b 100644
--- a/tests/migration/guestperf/scenario.py
+++ b/tests/migration/guestperf/scenario.py
@@ -29,7 +29,8 @@ def __init__(self, name,
post_copy=False, post_copy_iters=5,
auto_converge=False, auto_converge_step=10,
compression_mt=False, compression_mt_threads=1,
- compression_xbzrle=False, compression_xbzrle_cache=10):
+ compression_xbzrle=False, compression_xbzrle_cache=10,
+ multifd=False, multifd_channels=2):
self._name = name
@@ -56,6 +57,9 @@ def __init__(self, name,
self._compression_xbzrle = compression_xbzrle
self._compression_xbzrle_cache = compression_xbzrle_cache # percentage of guest RAM
+ self._multifd = multifd
+ self._multifd_channels = multifd_channels
+
def serialize(self):
return {
"name": self._name,
@@ -73,6 +77,8 @@ def serialize(self):
"compression_mt_threads": self._compression_mt_threads,
"compression_xbzrle": self._compression_xbzrle,
"compression_xbzrle_cache": self._compression_xbzrle_cache,
+ "multifd": self._multifd,
+ "multifd_channels": self._multifd_channels,
}
@classmethod
@@ -92,4 +98,6 @@ def deserialize(cls, data):
data["compression_mt"],
data["compression_mt_threads"],
data["compression_xbzrle"],
- data["compression_xbzrle_cache"])
+ data["compression_xbzrle_cache"],
+ data["multifd"],
+ data["multifd_channels"])
diff --git a/tests/migration/guestperf/shell.py b/tests/migration/guestperf/shell.py
index f838888..8a809e3 100644
--- a/tests/migration/guestperf/shell.py
+++ b/tests/migration/guestperf/shell.py
@@ -122,6 +122,11 @@ def __init__(self):
parser.add_argument("--compression-xbzrle", dest="compression_xbzrle", default=False, action="store_true")
parser.add_argument("--compression-xbzrle-cache", dest="compression_xbzrle_cache", default=10, type=int)
+ parser.add_argument("--multifd", dest="multifd", default=False,
+ action="store_true")
+ parser.add_argument("--multifd-channels", dest="multifd_channels",
+ default=2, type=int)
+
def get_scenario(self, args):
return Scenario(name="perfreport",
downtime=args.downtime,
@@ -142,7 +147,10 @@ def get_scenario(self, args):
compression_mt_threads=args.compression_mt_threads,
compression_xbzrle=args.compression_xbzrle,
- compression_xbzrle_cache=args.compression_xbzrle_cache)
+ compression_xbzrle_cache=args.compression_xbzrle_cache,
+
+ multifd=args.multifd,
+ multifd_channels=args.multifd_channels)
def run(self, argv):
args = self._parser.parse_args(argv)
