| import time, os, logging, re, commands |
| from autotest_lib.client.common_lib import utils, error |
| import kvm_utils, kvm_subprocess, ppm_utils, scan_results |
| |
| """ |
| KVM test definitions. |
| |
| @copyright: 2008-2009 Red Hat Inc. |
| """ |
| |
| |
| def run_boot(test, params, env): |
| """ |
| KVM reboot test: |
| 1) Log into a guest |
| 2) Send a reboot command to the guest |
| 3) Wait until it's up. |
| 4) Log into the guest to verify it's up again. |
| |
| @param test: kvm test object |
| @param params: Dictionary with the test parameters |
| @param env: Dictionary with test environment. |
| """ |
| vm = kvm_utils.env_get_vm(env, params.get("main_vm")) |
| if not vm: |
| raise error.TestError("VM object not found in environment") |
| if not vm.is_alive(): |
| raise error.TestError("VM seems to be dead; Test requires a living VM") |
| |
| logging.info("Waiting for guest to be up...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| raise error.TestFail("Could not log into guest") |
| |
| logging.info("Logged in") |
| |
| if params.get("reboot") == "yes": |
| # Send the VM's reboot command |
| session.sendline(vm.get_params().get("reboot_command")) |
| logging.info("Reboot command sent; waiting for guest to go down...") |
| |
| if not kvm_utils.wait_for(lambda: not session.is_responsive(), |
| 120, 0, 1): |
| raise error.TestFail("Guest refuses to go down") |
| |
| session.close() |
| |
| logging.info("Guest is down; waiting for it to go up again...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| raise error.TestFail("Could not log into guest after reboot") |
| |
| logging.info("Guest is up again") |
| |
| session.close() |
| |
| |
| def run_shutdown(test, params, env): |
| """ |
| KVM shutdown test: |
| 1) Log into a guest |
| 2) Send a shutdown command to the guest |
| 3) Wait until it's down |
| |
| @param test: kvm test object |
| @param params: Dictionary with the test parameters |
| @param env: Dictionary with test environment |
| """ |
| vm = kvm_utils.env_get_vm(env, params.get("main_vm")) |
| if not vm: |
| raise error.TestError("VM object not found in environment") |
| if not vm.is_alive(): |
| raise error.TestError("VM seems to be dead; Test requires a living VM") |
| |
| logging.info("Waiting for guest to be up...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| raise error.TestFail("Could not log into guest") |
| |
| try: |
| logging.info("Logged in") |
| |
| # Send the VM's shutdown command |
| session.sendline(vm.get_params().get("shutdown_command")) |
| |
| logging.info("Shutdown command sent; waiting for guest to go down...") |
| |
| if not kvm_utils.wait_for(vm.is_dead, 240, 0, 1): |
| raise error.TestFail("Guest refuses to go down") |
| |
| logging.info("Guest is down") |
| finally: |
| session.close() |
| |
| |
| def run_migration(test, params, env): |
| """ |
| KVM migration test: |
| 1) Get a live VM and clone it. |
| 2) Verify that the source VM supports migration. If it does, proceed with |
| the test. |
| 3) Send a migration command to the source VM and wait until it's finished. |
| 4) Kill off the source VM. |
| 3) Log into the destination VM after the migration is finished. |
| 4) Compare the output of a reference command executed on the source with |
| the output of the same command on the destination machine. |
| |
| @param test: kvm test object. |
| @param params: Dictionary with test parameters. |
| @param env: Dictionary with the test environment. |
| """ |
| vm = kvm_utils.env_get_vm(env, params.get("main_vm")) |
| if not vm: |
| raise error.TestError("VM object not found in environment") |
| if not vm.is_alive(): |
| raise error.TestError("VM seems to be dead; Test requires a living VM") |
| |
| # See if migration is supported |
| s, o = vm.send_monitor_cmd("help info") |
| if not "info migrate" in o: |
| raise error.TestError("Migration is not supported") |
| |
| dest_vm = vm.clone() |
| dest_vm.create(for_migration=True) |
| |
| # Log into guest and get the output of migration_test_command |
| logging.info("Waiting for guest to be up...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| raise error.TestFail("Could not log into guest") |
| |
| logging.info("Logged in") |
| |
| reference_output = session.get_command_output(params.get("migration_test_" |
| "command")) |
| session.close() |
| |
| # Define the migration command |
| cmd = "migrate -d tcp:localhost:%d" % dest_vm.migration_port |
| logging.debug("Migration command: %s" % cmd) |
| |
| # Migrate |
| s, o = vm.send_monitor_cmd(cmd) |
| if s: |
| logging.error("Migration command failed (command: %r, output: %r)" % |
| (cmd, o)) |
| raise error.TestFail("Migration command failed") |
| |
| # Define some helper functions |
| def mig_finished(): |
| s, o = vm.send_monitor_cmd("info migrate") |
| return s == 0 and not "Migration status: active" in o |
| |
| def mig_succeeded(): |
| s, o = vm.send_monitor_cmd("info migrate") |
| return s == 0 and "Migration status: completed" in o |
| |
| def mig_failed(): |
| s, o = vm.send_monitor_cmd("info migrate") |
| return s == 0 and "Migration status: failed" in o |
| |
| # Wait for migration to finish |
| if not kvm_utils.wait_for(mig_finished, 90, 2, 2, |
| "Waiting for migration to finish..."): |
| raise error.TestFail("Timeout elapsed while waiting for migration to " |
| "finish") |
| |
| # Report migration status |
| if mig_succeeded(): |
| logging.info("Migration finished successfully") |
| elif mig_failed(): |
| raise error.TestFail("Migration failed") |
| else: |
| raise error.TestFail("Migration ended with unknown status") |
| |
| # Kill the source VM |
| vm.destroy(gracefully=False) |
| |
| # Log into guest and get the output of migration_test_command |
| logging.info("Logging into guest after migration...") |
| |
| session = dest_vm.remote_login() |
| if not session: |
| raise error.TestFail("Could not log into guest after migration") |
| |
| logging.info("Logged in after migration") |
| |
| output = session.get_command_output(params.get("migration_test_command")) |
| session.close() |
| |
| # Compare output to reference output |
| if output != reference_output: |
| logging.info("Command output before migration differs from command " |
| "output after migration") |
| logging.info("Command: %s" % params.get("migration_test_command")) |
| logging.info("Output before:" + |
| kvm_utils.format_str_for_message(reference_output)) |
| logging.info("Output after:" + kvm_utils.format_str_for_message(output)) |
| raise error.TestFail("Command produced different output before and " |
| "after migration") |
| |
| kvm_utils.env_register_vm(env, params.get("main_vm"), dest_vm) |
| |
| |
| def run_autotest(test, params, env): |
| """ |
| Run an autotest test inside a guest. |
| |
| @param test: kvm test object. |
| @param params: Dictionary with test parameters. |
| @param env: Dictionary with the test environment. |
| """ |
| vm = kvm_utils.env_get_vm(env, params.get("main_vm")) |
| if not vm: |
| raise error.TestError("VM object not found in environment") |
| if not vm.is_alive(): |
| raise error.TestError("VM seems to be dead; Test requires a living VM") |
| |
| logging.info("Logging into guest...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| raise error.TestFail("Could not log into guest") |
| |
| logging.info("Logged in") |
| |
| # Collect some info |
| test_name = params.get("test_name") |
| test_timeout = int(params.get("test_timeout", 300)) |
| test_control_file = params.get("test_control_file", "control") |
| tarred_autotest_path = "/tmp/autotest.tar.bz2" |
| tarred_test_path = "/tmp/%s.tar.bz2" % test_name |
| |
| # tar the contents of bindir/autotest |
| cmd = "cd %s; tar cvjf %s autotest/*" |
| cmd += " --exclude=autotest/tests" |
| cmd += " --exclude=autotest/results" |
| cmd += " --exclude=autotest/tmp" |
| cmd += " --exclude=autotest/control" |
| cmd += " --exclude=*.pyc" |
| cmd += " --exclude=*.svn" |
| cmd += " --exclude=*.git" |
| kvm_subprocess.run_fg(cmd % (test.bindir, tarred_autotest_path), timeout=30) |
| |
| # tar the contents of bindir/autotest/tests/<test_name> |
| cmd = "cd %s; tar cvjf %s %s/*" |
| cmd += " --exclude=*.pyc" |
| cmd += " --exclude=*.svn" |
| cmd += " --exclude=*.git" |
| kvm_subprocess.run_fg(cmd % |
| (os.path.join(test.bindir, "autotest", "tests"), |
| tarred_test_path, test_name), timeout=30) |
| |
| # Check if we need to copy autotest.tar.bz2 |
| copy = False |
| output = session.get_command_output("ls -l autotest.tar.bz2") |
| if "such file" in output: |
| copy = True |
| else: |
| size = int(output.split()[4]) |
| if size != os.path.getsize(tarred_autotest_path): |
| copy = True |
| # Perform the copy |
| if copy: |
| logging.info("Copying autotest.tar.bz2 to guest" |
| " (file is missing or has a different size)...") |
| if not vm.copy_files_to(tarred_autotest_path, ""): |
| raise error.TestFail("Could not copy autotest.tar.bz2 to guest") |
| |
| # Check if we need to copy <test_name>.tar.bz2 |
| copy = False |
| output = session.get_command_output("ls -l %s.tar.bz2" % test_name) |
| if "such file" in output: |
| copy = True |
| else: |
| size = int(output.split()[4]) |
| if size != os.path.getsize(tarred_test_path): |
| copy = True |
| # Perform the copy |
| if copy: |
| logging.info("Copying %s.tar.bz2 to guest (file is missing or has a" |
| " different size)..." % test_name) |
| if not vm.copy_files_to(tarred_test_path, ""): |
| raise error.TestFail("Could not copy %s.tar.bz2 to guest" % |
| test_name) |
| |
| # Extract autotest.tar.bz2 |
| logging.info("Extracting autotest.tar.bz2...") |
| status = session.get_command_status("tar xvfj autotest.tar.bz2") |
| if status != 0: |
| raise error.TestFail("Could not extract autotest.tar.bz2") |
| |
| # mkdir autotest/tests |
| session.sendline("mkdir autotest/tests") |
| |
| # Extract <test_name>.tar.bz2 into autotest/tests |
| logging.info("Extracting %s.tar.bz2..." % test_name) |
| status = session.get_command_status("tar xvfj %s.tar.bz2 -C " |
| "autotest/tests" % test_name) |
| if status != 0: |
| raise error.TestFail("Could not extract %s.tar.bz2" % test_name) |
| |
| # Cleaning up old remaining results |
| session.sendline("rm -rf autotest/results/*") |
| # Copying the selected control file (located inside |
| # test.bindir/autotest_control to the autotest dir |
| control_file_path = os.path.join(test.bindir, "autotest_control", |
| test_control_file) |
| if not vm.copy_files_to(control_file_path, "autotest/control"): |
| raise error.TestFail("Could not copy the test control file to guest") |
| # Run the test |
| logging.info("Running test '%s'..." % test_name) |
| session.sendline("cd autotest") |
| session.sendline("rm -f control.state") |
| session.read_up_to_prompt() |
| session.sendline("bin/autotest control") |
| logging.info("---------------- Test output ----------------") |
| match = session.read_up_to_prompt(timeout=test_timeout, |
| print_func=logging.info)[0] |
| logging.info("---------------- End of test output ----------------") |
| if not match: |
| raise error.TestFail("Timeout elapsed while waiting for test to " |
| "complete") |
| # Get the results generated by autotest |
| output = session.get_command_output("cat results/*/status") |
| |
| # Parse test results |
| result_list = scan_results.parse_results(output) |
| |
| # Report test results and check for FAIL/ERROR status |
| logging.info("Results (test, status, duration, info):") |
| status_error = False |
| status_fail = False |
| if result_list == []: |
| status_fail = True |
| message_fail = ("Test '%s' did not produce any recognizable " |
| "results" % test_name) |
| for result in result_list: |
| logging.info(str(result)) |
| if result[1] == "FAIL": |
| status_fail = True |
| message_fail = ("Test '%s' ended with FAIL " |
| "(info: '%s')" % (result[0], result[3])) |
| if result[1] == "ERROR": |
| status_error = True |
| message_error = ("Test '%s' ended with ERROR " |
| "(info: '%s')" % (result[0], result[3])) |
| if result[1] == "ABORT": |
| status_error = True |
| message_error = ("Test '%s' ended with ABORT " |
| "(info: '%s')" % (result[0], result[3])) |
| |
| # Copy test results to the local bindir/guest_results |
| logging.info("Copying results back from guest...") |
| guest_results_dir = os.path.join(test.outputdir, "guest_results") |
| if not os.path.exists(guest_results_dir): |
| os.mkdir(guest_results_dir) |
| if not vm.copy_files_from("autotest/results/default/*", guest_results_dir): |
| logging.error("Could not copy results back from guest") |
| |
| # Fail the test if necessary |
| if status_fail: |
| raise error.TestFail(message_fail) |
| elif status_error: |
| raise error.TestError(message_error) |
| |
| |
| def internal_yum_update(session, command, prompt, timeout): |
| """ |
| Helper function to perform the yum update test. |
| |
| @param session: shell session stablished to the host |
| @param command: Command to be sent to the shell session |
| @param prompt: Machine prompt |
| @param timeout: How long to wait until we get an appropriate output from |
| the shell session. |
| """ |
| session.sendline(command) |
| end_time = time.time() + timeout |
| while time.time() < end_time: |
| (match, text) = session.read_until_last_line_matches( |
| ["[Ii]s this [Oo][Kk]", prompt], timeout=timeout) |
| if match == 0: |
| logging.info("Got 'Is this ok'; sending 'y'") |
| session.sendline("y") |
| elif match == 1: |
| logging.info("Got shell prompt") |
| return True |
| else: |
| logging.info("Timeout or process exited") |
| return False |
| |
| |
| def run_yum_update(test, params, env): |
| """ |
| Runs yum update and yum update kernel on the remote host (yum enabled |
| hosts only). |
| |
| @param test: kvm test object. |
| @param params: Dictionary with test parameters. |
| @param env: Dictionary with the test environment. |
| """ |
| vm = kvm_utils.env_get_vm(env, params.get("main_vm")) |
| if not vm: |
| message = "VM object not found in environment" |
| logging.error(message) |
| raise error.TestError(message) |
| if not vm.is_alive(): |
| message = "VM seems to be dead; Test requires a living VM" |
| logging.error(message) |
| raise error.TestError(message) |
| |
| logging.info("Logging into guest...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| message = "Could not log into guest" |
| logging.error(message) |
| raise error.TestFail(message) |
| |
| logging.info("Logged in") |
| |
| internal_yum_update(session, "yum update", params.get("shell_prompt"), 600) |
| internal_yum_update(session, "yum update kernel", |
| params.get("shell_prompt"), 600) |
| |
| session.close() |
| |
| |
| def run_linux_s3(test, params, env): |
| """ |
| Suspend a guest Linux OS to memory. |
| |
| @param test: kvm test object. |
| @param params: Dictionary with test parameters. |
| @param env: Dictionary with the test environment. |
| """ |
| vm = kvm_utils.env_get_vm(env, params.get("main_vm")) |
| if not vm: |
| raise error.TestError("VM object not found in environment") |
| if not vm.is_alive(): |
| raise error.TestError("VM seems to be dead; Test requires a living VM") |
| |
| logging.info("Waiting for guest to be up...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| raise error.TestFail("Could not log into guest") |
| |
| logging.info("Logged in") |
| logging.info("Checking that VM supports S3") |
| |
| status = session.get_command_status("grep -q mem /sys/power/state") |
| if status == None: |
| logging.error("Failed to check if S3 exists") |
| elif status != 0: |
| raise error.TestFail("Guest does not support S3") |
| |
| logging.info("Waiting for a while for X to start") |
| time.sleep(10) |
| |
| src_tty = session.get_command_output("fgconsole").strip() |
| logging.info("Current virtual terminal is %s" % src_tty) |
| if src_tty not in map(str, range(1,10)): |
| raise error.TestFail("Got a strange current vt (%s)" % src_tty) |
| |
| dst_tty = "1" |
| if src_tty == "1": |
| dst_tty = "2" |
| |
| logging.info("Putting VM into S3") |
| command = "chvt %s && echo mem > /sys/power/state && chvt %s" % (dst_tty, |
| src_tty) |
| status = session.get_command_status(command, timeout=120) |
| if status != 0: |
| raise error.TestFail("Suspend to mem failed") |
| |
| logging.info("VM resumed after S3") |
| |
| session.close() |
| |
| |
| def run_stress_boot(tests, params, env): |
| """ |
| Boots VMs until one of them becomes unresponsive, and records the maximum |
| number of VMs successfully started: |
| 1) boot the first vm |
| 2) boot the second vm cloned from the first vm, check whether it boots up |
| and all booted vms respond to shell commands |
| 3) go on until cannot create VM anymore or cannot allocate memory for VM |
| |
| @param test: kvm test object |
| @param params: Dictionary with the test parameters |
| @param env: Dictionary with test environment. |
| """ |
| # boot the first vm |
| vm = kvm_utils.env_get_vm(env, params.get("main_vm")) |
| if not vm: |
| raise error.TestError("VM object not found in environment") |
| if not vm.is_alive(): |
| raise error.TestError("VM seems to be dead; Test requires a living VM") |
| |
| logging.info("Waiting for first guest to be up...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| raise error.TestFail("Could not log into first guest") |
| |
| num = 2 |
| sessions = [session] |
| address_index = int(params.get("clone_address_index_base", 10)) |
| |
| # boot the VMs |
| while num <= int(params.get("max_vms")): |
| try: |
| vm_name = "vm" + str(num) |
| |
| # clone vm according to the first one |
| vm_params = vm.get_params().copy() |
| vm_params["address_index"] = str(address_index) |
| curr_vm = vm.clone(vm_name, vm_params) |
| kvm_utils.env_register_vm(env, vm_name, curr_vm) |
| params['vms'] += " " + vm_name |
| |
| logging.info("Booting guest #%d" % num) |
| if not curr_vm.create(): |
| raise error.TestFail("Cannot create VM #%d" % num) |
| |
| curr_vm_session = kvm_utils.wait_for(curr_vm.remote_login, 240, 0, 2) |
| if not curr_vm_session: |
| raise error.TestFail("Could not log into guest #%d" % num) |
| |
| logging.info("Guest #%d boots up successfully" % num) |
| sessions.append(curr_vm_session) |
| |
| # check whether all previous shell sessions are responsive |
| for i, se in enumerate(sessions): |
| if se.get_command_status(params.get("alive_test_cmd")) != 0: |
| raise error.TestFail("Session #%d is not responsive" % i) |
| num += 1 |
| address_index += 1 |
| |
| except (error.TestFail, OSError): |
| for se in sessions: |
| se.close() |
| logging.info("Total number booted: %d" % (num - 1)) |
| raise |
| else: |
| for se in sessions: |
| se.close() |
| logging.info("Total number booted: %d" % (num -1)) |
| |
| |
| def run_timedrift(test, params, env): |
| """ |
| Time drift test (mainly for Windows guests): |
| |
| 1) Log into a guest. |
| 2) Take a time reading from the guest and host. |
| 3) Run load on the guest and host. |
| 4) Take a second time reading. |
| 5) Stop the load and rest for a while. |
| 6) Take a third time reading. |
| 7) If the drift immediately after load is higher than a user- |
| specified value (in %), fail. |
| If the drift after the rest period is higher than a user-specified value, |
| fail. |
| |
| @param test: KVM test object. |
| @param params: Dictionary with test parameters. |
| @param env: Dictionary with the test environment. |
| """ |
| # Helper functions |
| def set_cpu_affinity(pid, mask): |
| """ |
| Set the CPU affinity of all threads of the process with PID pid. |
| Do this recursively for all child processes as well. |
| |
| @param pid: The process ID. |
| @param mask: The CPU affinity mask. |
| @return: A dict containing the previous mask for each thread. |
| """ |
| tids = commands.getoutput("ps -L --pid=%s -o lwp=" % pid).split() |
| prev_masks = {} |
| for tid in tids: |
| prev_mask = commands.getoutput("taskset -p %s" % tid).split()[-1] |
| prev_masks[tid] = prev_mask |
| commands.getoutput("taskset -p %s %s" % (mask, tid)) |
| children = commands.getoutput("ps --ppid=%s -o pid=" % pid).split() |
| for child in children: |
| prev_masks.update(set_cpu_affinity(child, mask)) |
| return prev_masks |
| |
| def restore_cpu_affinity(prev_masks): |
| """ |
| Restore the CPU affinity of several threads. |
| |
| @param prev_masks: A dict containing TIDs as keys and masks as values. |
| """ |
| for tid, mask in prev_masks.items(): |
| commands.getoutput("taskset -p %s %s" % (mask, tid)) |
| |
| def get_time(session, time_command, time_filter_re, time_format): |
| """ |
| Returns the host time and guest time. |
| |
| @param session: A shell session. |
| @param time_command: Command to issue to get the current guest time. |
| @param time_filter_re: Regex filter to apply on the output of |
| time_command in order to get the current time. |
| @param time_format: Format string to pass to time.strptime() with the |
| result of the regex filter. |
| @return: A tuple containing the host time and guest time. |
| """ |
| host_time = time.time() |
| session.sendline(time_command) |
| (match, s) = session.read_up_to_prompt() |
| s = re.findall(time_filter_re, s)[0] |
| guest_time = time.mktime(time.strptime(s, time_format)) |
| return (host_time, guest_time) |
| |
| vm = kvm_utils.env_get_vm(env, params.get("main_vm")) |
| if not vm: |
| raise error.TestError("VM object not found in environment") |
| if not vm.is_alive(): |
| raise error.TestError("VM seems to be dead; Test requires a living VM") |
| |
| logging.info("Waiting for guest to be up...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| raise error.TestFail("Could not log into guest") |
| |
| logging.info("Logged in") |
| |
| # Collect test parameters: |
| # Command to run to get the current time |
| time_command = params.get("time_command") |
| # Filter which should match a string to be passed to time.strptime() |
| time_filter_re = params.get("time_filter_re") |
| # Time format for time.strptime() |
| time_format = params.get("time_format") |
| guest_load_command = params.get("guest_load_command") |
| guest_load_stop_command = params.get("guest_load_stop_command") |
| host_load_command = params.get("host_load_command") |
| guest_load_instances = int(params.get("guest_load_instances", "1")) |
| host_load_instances = int(params.get("host_load_instances", "0")) |
| # CPU affinity mask for taskset |
| cpu_mask = params.get("cpu_mask", "0xFF") |
| load_duration = float(params.get("load_duration", "30")) |
| rest_duration = float(params.get("rest_duration", "10")) |
| drift_threshold = float(params.get("drift_threshold", "200")) |
| drift_threshold_after_rest = float(params.get("drift_threshold_after_rest", |
| "200")) |
| |
| guest_load_sessions = [] |
| host_load_sessions = [] |
| |
| # Set the VM's CPU affinity |
| prev_affinity = set_cpu_affinity(vm.get_pid(), cpu_mask) |
| |
| try: |
| # Get time before load |
| (host_time_0, guest_time_0) = get_time(session, time_command, |
| time_filter_re, time_format) |
| |
| # Run some load on the guest |
| logging.info("Starting load on guest...") |
| for i in range(guest_load_instances): |
| load_session = vm.remote_login() |
| if not load_session: |
| raise error.TestFail("Could not log into guest") |
| load_session.set_output_prefix("(guest load %d) " % i) |
| load_session.set_output_func(logging.debug) |
| load_session.sendline(guest_load_command) |
| guest_load_sessions.append(load_session) |
| |
| # Run some load on the host |
| logging.info("Starting load on host...") |
| for i in range(host_load_instances): |
| host_load_sessions.append( |
| kvm_subprocess.run_bg(host_load_command, |
| output_func=logging.debug, |
| output_prefix="(host load %d) " % i, |
| timeout=0.5)) |
| # Set the CPU affinity of the load process |
| pid = host_load_sessions[-1].get_shell_pid() |
| set_cpu_affinity(pid, cpu_mask) |
| |
| # Sleep for a while (during load) |
| logging.info("Sleeping for %s seconds..." % load_duration) |
| time.sleep(load_duration) |
| |
| # Get time delta after load |
| (host_time_1, guest_time_1) = get_time(session, time_command, |
| time_filter_re, time_format) |
| |
| # Report results |
| host_delta = host_time_1 - host_time_0 |
| guest_delta = guest_time_1 - guest_time_0 |
| drift = 100.0 * (host_delta - guest_delta) / host_delta |
| logging.info("Host duration: %.2f" % host_delta) |
| logging.info("Guest duration: %.2f" % guest_delta) |
| logging.info("Drift: %.2f%%" % drift) |
| |
| finally: |
| logging.info("Cleaning up...") |
| # Restore the VM's CPU affinity |
| restore_cpu_affinity(prev_affinity) |
| # Stop the guest load |
| if guest_load_stop_command: |
| session.get_command_output(guest_load_stop_command) |
| # Close all load shell sessions |
| for load_session in guest_load_sessions: |
| load_session.close() |
| for load_session in host_load_sessions: |
| load_session.close() |
| |
| # Sleep again (rest) |
| logging.info("Sleeping for %s seconds..." % rest_duration) |
| time.sleep(rest_duration) |
| |
| # Get time after rest |
| (host_time_2, guest_time_2) = get_time(session, time_command, |
| time_filter_re, time_format) |
| |
| # Report results |
| host_delta_total = host_time_2 - host_time_0 |
| guest_delta_total = guest_time_2 - guest_time_0 |
| drift_total = 100.0 * (host_delta_total - guest_delta_total) / host_delta |
| logging.info("Total host duration including rest: %.2f" % host_delta_total) |
| logging.info("Total guest duration including rest: %.2f" % guest_delta_total) |
| logging.info("Total drift after rest: %.2f%%" % drift_total) |
| |
| session.close() |
| |
| # Fail the test if necessary |
| if drift > drift_threshold: |
| raise error.TestFail("Time drift too large: %.2f%%" % drift) |
| if drift_total > drift_threshold_after_rest: |
| raise error.TestFail("Time drift too large after rest period: %.2f%%" |
| % drift_total) |
| |
| |
| def run_autoit(test, params, env): |
| """ |
| A wrapper for AutoIt scripts. |
| |
| 1) Log into a guest. |
| 2) Run AutoIt script. |
| 3) Wait for script execution to complete. |
| 4) Pass/fail according to exit status of script. |
| |
| @param test: KVM test object. |
| @param params: Dictionary with test parameters. |
| @param env: Dictionary with the test environment. |
| """ |
| vm = kvm_utils.env_get_vm(env, params.get("main_vm")) |
| if not vm: |
| raise error.TestError("VM object not found in environment") |
| if not vm.is_alive(): |
| raise error.TestError("VM seems to be dead; Test requires a living VM") |
| |
| logging.info("Waiting for guest to be up...") |
| |
| session = kvm_utils.wait_for(vm.remote_login, 240, 0, 2) |
| if not session: |
| raise error.TestFail("Could not log into guest") |
| |
| try: |
| logging.info("Logged in; starting script...") |
| |
| # Collect test parameters |
| binary = params.get("autoit_binary") |
| script = params.get("autoit_script") |
| script_params = params.get("autoit_script_params", "") |
| timeout = float(params.get("autoit_script_timeout", 600)) |
| |
| # Send AutoIt script to guest (this code will be replaced once we |
| # support sending files to Windows guests) |
| session.sendline("del script.au3") |
| file = open(kvm_utils.get_path(test.bindir, script)) |
| for line in file.readlines(): |
| # Insert a '^' before each character |
| line = "".join("^" + c for c in line.rstrip()) |
| if line: |
| # Append line to the file |
| session.sendline("echo %s>>script.au3" % line) |
| file.close() |
| |
| session.read_up_to_prompt() |
| |
| command = "cmd /c %s script.au3 %s" % (binary, script_params) |
| |
| logging.info("---------------- Script output ----------------") |
| status = session.get_command_status(command, |
| print_func=logging.info, |
| timeout=timeout) |
| logging.info("---------------- End of script output ----------------") |
| |
| if status is None: |
| raise error.TestFail("Timeout expired before script execution " |
| "completed (or something weird happened)") |
| if status != 0: |
| raise error.TestFail("Script execution failed") |
| |
| finally: |
| session.close() |