mirror of
https://gitlab.uni-freiburg.de/opensourcevdi/spice
synced 2025-12-26 14:41:25 +00:00
603b100ba1
Instead, create a new image with backing-file of the original image (a "permanent" snapshot), use it during the test and remove it at the end. Also use 'writeback' cache instead of 'unsafe'. Signed-off-by: Uri Lublin <uril@redhat.com> squash: actually remove the snapshot. mention cache change
269 lines
9.8 KiB
Python
Executable File
269 lines
9.8 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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Spice Migration test
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Somewhat stressfull test of continuous migration with spice in VGA mode or QXL mode,
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depends on supplying an image in IMAGE variable (if no image is supplied then
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VGA mode since it will just be SeaBIOS).
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Dependencies:
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either qmp in python path or running with spice and qemu side by side:
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qemu/python/qemu/qmp.py
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spice/tests/migrate.py
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Will create two temporary unix sockets in /tmp
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Will leave a log file, migrate_test.log, in current directory.
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"""
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#
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# start one spice client, have two machines (active and target),
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# and repeat:
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# active wait until it's active
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# active client_migrate_info
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# active migrate tcp:localhost:9000
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# _wait for event of quit
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# active stop, active<->passive
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#
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# wait until it's active
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# command query-status, if running good
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# if not listen to events until event of running
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try:
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import qmp
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except:
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import sys
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sys.path.append("../../qemu/python/qemu/")
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try:
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import qmp
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except:
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print("can't find qmp")
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raise SystemExit
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import sys
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from subprocess import Popen, PIPE
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import os
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import time
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import socket
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import datetime
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import atexit
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import argparse
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# python3 does not have raw_input
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if sys.version_info[0] == 3:
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raw_input = input
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def run_shell_command(cmd):
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return os.popen(cmd).read().strip()
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def get_args():
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parser = argparse.ArgumentParser(description='Process some integers.')
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parser.add_argument('--qmp1', dest='qmp1', default='/tmp/migrate_test.1.qmp')
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parser.add_argument('--qmp2', dest='qmp2', default='/tmp/migrate_test.2.qmp')
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parser.add_argument('--spice_port1', dest='spice_port1', type=int, default=5911)
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parser.add_argument('--spice_port2', dest='spice_port2', type=int, default=6911)
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parser.add_argument('--migrate_port', dest='migrate_port', type=int, default=8000)
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parser.add_argument('--qemu', dest='qemu', default='../../qemu/x86_64-softmmu/qemu-system-x86_64')
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parser.add_argument('--log_filename', dest='log_filename', default='migrate.log')
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parser.add_argument('--image', dest='image', default='')
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parser.add_argument('--client', dest='client', default='none', choices=['spicy', 'remote-viewer', 'none'],
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help="Automatically lunch one of supported clients or none (default)")
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parser.add_argument('--vdagent', dest="vdagent", action='store_true', default=False,
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help="Append options for agent's virtserialport")
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parser.add_argument('--wait-user-input', dest="wait_user_input", action='store_true', default=False,
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help="Wait user's input to start migration test")
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parser.add_argument('--wait-user-connect', dest="wait_user_connect", action='store_true', default=False,
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help="Wait spice client to connect to move to next step of migration (default False)")
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parser.add_argument('--count', dest='counter', type=int, default=100,
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help="Number of migrations to run (set 0 for infinite)")
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args = parser.parse_args(sys.argv[1:])
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if os.path.exists(args.qemu):
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args.qemu_exec = args.qemu
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else:
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args.qemu_exec = run_shell_command("which %s" % args.qemu)
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if not os.path.exists(args.qemu_exec):
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print("qemu not found (qemu = %r)" % args.qemu_exec)
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sys.exit(1)
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return args
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def start_qemu(qemu_exec, image, spice_port, qmp_filename, incoming_port=None, with_agent=False):
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incoming_args = []
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if incoming_port:
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incoming_args = ("-incoming tcp::%s" % incoming_port).split()
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extra_args = []
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if with_agent:
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extra_args = ['-device', 'virtio-serial',
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'-chardev', 'spicevmc,name=vdagent,id=vdagent',
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'-device', 'virtserialport,chardev=vdagent,name=com.redhat.spice.0']
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args = ([qemu_exec, "-qmp", "unix:%s,server,nowait" % qmp_filename,
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"-spice", "disable-ticketing,port=%s" % spice_port]
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+ incoming_args + extra_args)
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if os.path.exists(image):
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args += ["-m", "512", "-enable-kvm", "-drive",
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"file=%s,index=0,media=disk,cache=writeback" % image]
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# print qemu command line for the first run
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if not incoming_port:
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print('qemu command line: %s' % ' '.join(args))
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proc = Popen(args, executable=qemu_exec, stdin=PIPE, stdout=PIPE)
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while not os.path.exists(qmp_filename):
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time.sleep(0.1)
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proc.qmp_filename = qmp_filename
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proc.qmp = qmp.QEMUMonitorProtocol(qmp_filename)
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while True:
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try:
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proc.qmp.connect()
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break
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except socket.error:
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pass
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proc.spice_port = spice_port
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proc.incoming_port = incoming_port
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return proc
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def start_client(client, spice_port):
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client_cmd = "spicy --uri spice://localhost:%s" % (spice_port)
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if client == "remote-viewer":
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client_cmd = "remote-viewer spice://localhost:%s" % (spice_port)
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return Popen(client_cmd.split(), executable=client)
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def wait_active(q, active):
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events = ["RESUME"] if active else ["STOP"]
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while True:
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try:
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ret = q.cmd("query-status")
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except:
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# ValueError
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time.sleep(0.1)
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continue
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if ret and "return" in ret.keys():
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if ret["return"]["running"] == active:
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break
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for e in q.get_events():
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if e["event"] in events:
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break
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time.sleep(0.5)
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def wait_for_event(q, event):
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while True:
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for e in q.get_events():
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if e["event"] == event:
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return
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time.sleep(0.5)
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def cleanup(migrator):
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print("doing cleanup")
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migrator.close()
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def remove_image_file(filename):
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run_shell_command('rm -f %s' % filename)
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class Migrator(object):
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migration_count = 0
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def __init__(self, log, client, qemu_exec, image, monitor_files,
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spice_ports, migration_port, vdagent):
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self.client = client if client != "none" else None
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self.log = log
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self.qemu_exec = qemu_exec
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self.image = image
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self.migration_port = migration_port
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self.monitor_files = monitor_files
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self.spice_ports = spice_ports
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self.vdagent = vdagent
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self.active = start_qemu(qemu_exec=qemu_exec, image=image, spice_port=spice_ports[0],
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qmp_filename=monitor_files[0], with_agent=self.vdagent)
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self.target = start_qemu(qemu_exec=qemu_exec, image=image, spice_port=spice_ports[1],
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qmp_filename=monitor_files[1], with_agent=self.vdagent,
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incoming_port=migration_port)
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self.remove_monitor_files()
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self.connected_client = None
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def close(self):
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self.remove_monitor_files()
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self.kill_qemu()
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def kill_qemu(self):
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for p in [self.active, self.target]:
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print("killing and waiting for qemu pid %s" % p.pid)
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p.kill()
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p.wait()
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def remove_monitor_files(self):
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for x in self.monitor_files:
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if os.path.exists(x):
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os.unlink(x)
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def iterate(self, wait_for_user_input=False, wait_user_connect=False):
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wait_active(self.active.qmp, True)
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wait_active(self.target.qmp, False)
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if not self.connected_client:
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if self.client:
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self.connected_client = start_client(client=self.client, spice_port=self.spice_ports[0])
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if wait_for_user_input:
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print("waiting for Enter to start migrations")
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raw_input()
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# Tester can launch its own client or we wait start_client() to connect
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if wait_user_connect:
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wait_for_event(self.active.qmp, 'SPICE_INITIALIZED')
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self.active.qmp.cmd('client_migrate_info', {'protocol':'spice',
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'hostname':'localhost', 'port':self.target.spice_port})
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self.active.qmp.cmd('migrate', {'uri': 'tcp:localhost:%s' % self.migration_port})
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wait_active(self.active.qmp, False)
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wait_active(self.target.qmp, True)
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if self.connected_client or wait_user_connect:
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wait_for_event(self.target.qmp, 'SPICE_CONNECTED')
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dead = self.active
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dead.qmp.cmd("quit")
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dead.qmp.close()
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dead.wait()
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new_spice_port = dead.spice_port
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new_qmp_filename = dead.qmp_filename
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outstr = dead.stdout.read()
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if outstr:
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outstr = outstr.decode(encoding='utf-8', errors='ignore')
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self.log.write("# STDOUT dead %s\n" % dead.pid)
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self.log.write(outstr)
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del dead
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self.active = self.target
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self.target = start_qemu(spice_port=new_spice_port,
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qemu_exec=self.qemu_exec, image=self.image,
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qmp_filename=new_qmp_filename,
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with_agent=self.vdagent,
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incoming_port=self.migration_port)
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print(self.migration_count)
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self.migration_count += 1
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def main():
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args = get_args()
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print("log file %s" % args.log_filename)
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log = open(args.log_filename, "a+")
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log.write("# "+str(datetime.datetime.now())+"\n")
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newimage = run_shell_command("mktemp --dry-run /tmp/migrate_XXXXXX.qcow2")
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qemu_img = run_shell_command("dirname %s" % args.qemu_exec) + '/qemu-img'
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run_shell_command('%s create -f qcow2 -b %s %s' % (qemu_img, args.image, newimage))
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print('using new image %s' % newimage)
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migrator = Migrator(client=args.client, qemu_exec=args.qemu_exec,
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image=newimage, log=log, monitor_files=[args.qmp1, args.qmp2],
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migration_port=args.migrate_port, spice_ports=[args.spice_port1,
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args.spice_port2], vdagent=args.vdagent)
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atexit.register(cleanup, migrator)
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atexit.register(remove_image_file, newimage)
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counter = 0
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while args.counter == 0 or counter < args.counter:
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migrator.iterate(args.wait_user_input, args.wait_user_connect)
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counter += 1
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if __name__ == '__main__':
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main()
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