def emulate_first_reboot(platform, config):
platform.starting_temperatures = platform.take_temperature_readings()
manifest = ManifestManager(config, platform, new_file=True)
manifest.set_starting_temperatures(platform.starting_temperatures)
results = Results(config, platform)
results.write_to_file()
return manifest
def emulate_first_reboot(platform, config, monkeypatch):
no_results_instantiation_check(monkeypatch)
platform.starting_temperatures = platform.take_temperature_readings()
manifest = ManifestManager(config, platform, new_file=True)
manifest.set_starting_temperatures(platform.starting_temperatures)
results = Results(config, platform)
results.write_to_file()
return manifest
def inner_main(mailer, on_first_invocation, config, args):
out_file = config.results_filename()
out_file_exists = os.path.exists(out_file)
instr_dir = util.get_instr_json_dir(config)
instr_dir_exists = os.path.exists(instr_dir)
envlog_dir = util.get_envlog_dir(config)
envlog_dir_exists = os.path.exists(envlog_dir)
if out_file_exists and not os.path.isfile(out_file):
util.fatal("Output file '%s' exists but is not a regular file" %
out_file)
if out_file_exists and on_first_invocation:
util.fatal("Output results file '%s' already exists. "
"Move the file away before running Krun." % out_file)
if instr_dir_exists and on_first_invocation:
util.fatal("Instrumentation dir '%s' exists." % instr_dir)
if envlog_dir_exists and on_first_invocation:
util.fatal("Env log dir '%s' exists." % envlog_dir)
if not out_file_exists and not on_first_invocation:
util.fatal("No results file to resume. Expected '%s'" % out_file)
# Initialise platform instance and assign to VM defs.
# This needs to be done early, so VM sanity checks can run.
platform = detect_platform(mailer, config)
platform.quick_mode = args.quick
platform.no_user_change = args.no_user_change
platform.no_tickless_check = args.no_tickless_check
platform.no_pstate_check = args.no_pstate_check
platform.hardware_reboots = args.hardware_reboots
# Create the instrumentation directory if required
if on_first_invocation:
# We only want make a dir if >=1 VM is in instrumentation mode.
for vm in config.VMS.itervalues():
if vm['vm_def'].instrument:
util.make_instr_dir(config)
break
debug("Checking platform preliminaries")
platform.check_preliminaries()
# Make a bit of noise if this is a virtualised environment
if platform.is_virtual():
warn(
"This appears to be a virtualised host. The results will be flawed. "
"Use bare-metal for reliable results!")
platform.collect_audit()
# At this point the config file is OK, and on-disk state is consistent,
# so let's daemonise (if requested).
if args.daemonise:
util.daemonise()
if not on_first_invocation:
# output file must exist, due to check above
assert (out_file_exists)
debug("Using pre-recorded initial temperature readings")
manifest = ManifestManager(config, platform)
platform_temps = {}
for sensor, tup in manifest.starting_temperatures.iteritems():
platform_temps[sensor] = tup[1]
platform.starting_temperatures = platform_temps
else:
manifest = ManifestManager(config, platform, new_file=True)
if manifest.num_execs_left == 0:
# No executions, or all skipped
fatal("Empty schedule!")
try:
info(("Wait %s secs to allow system to cool prior to "
"collecting initial temperature readings") %
config.TEMP_READ_PAUSE)
# This part is wrapped in hooks, so that if daemons or networking are
# taken down for process executions, then the initial temperature
# reading gets the same treatment.
util.run_shell_cmd_list(config.PRE_EXECUTION_CMDS, )
platform.sleep(config.TEMP_READ_PAUSE)
debug("Taking fresh initial temperature readings")
platform.starting_temperatures = platform.take_temperature_readings(
)
manifest.set_starting_temperatures(platform.starting_temperatures)
# Write out an empty results file. After the initial reboot Krun
# will expect this to exist.
Results.ok_to_instantiate = True
results = Results(config, platform)
results.write_to_file()
except:
raise
finally:
util.run_shell_cmd_list(config.POST_EXECUTION_CMDS, )
log_path = config.log_filename(resume=False)
util.log_and_mail(mailer,
debug,
"Benchmarking started",
"Benchmarking started.\nLogging to %s" % log_path,
bypass_limiter=True)
util.reboot(manifest, platform)
# Assign platform to VM defs -- needs to happen early for sanity checks
util.assign_platform(config, platform)
sanity_checks(config, platform)
# Build job queue -- each job is an execution
sched = ExecutionScheduler(config, mailer, platform, dry_run=args.dry_run)
sched.run()
def inner_main(mailer, on_first_invocation, config, args):
out_file = config.results_filename()
out_file_exists = os.path.exists(out_file)
instr_dir = util.get_instr_json_dir(config)
instr_dir_exists = os.path.exists(instr_dir)
envlog_dir = util.get_envlog_dir(config)
envlog_dir_exists = os.path.exists(envlog_dir)
if out_file_exists and not os.path.isfile(out_file):
util.fatal(
"Output file '%s' exists but is not a regular file" % out_file)
if out_file_exists and on_first_invocation:
util.fatal("Output results file '%s' already exists. "
"Move the file away before running Krun." % out_file)
if instr_dir_exists and on_first_invocation:
util.fatal("Instrumentation dir '%s' exists." % instr_dir)
if envlog_dir_exists and on_first_invocation:
util.fatal("Env log dir '%s' exists." % envlog_dir)
if not out_file_exists and not on_first_invocation:
util.fatal("No results file to resume. Expected '%s'" % out_file)
# Initialise platform instance and assign to VM defs.
# This needs to be done early, so VM sanity checks can run.
platform = detect_platform(mailer, config)
platform.quick_mode = args.quick
platform.no_user_change = args.no_user_change
platform.no_tickless_check = args.no_tickless_check
platform.no_pstate_check = args.no_pstate_check
platform.hardware_reboots = args.hardware_reboots
# Create the instrumentation directory if required
if on_first_invocation:
# We only want make a dir if >=1 VM is in instrumentation mode.
for vm in config.VMS.itervalues():
if vm['vm_def'].instrument:
util.make_instr_dir(config)
break
debug("Checking platform preliminaries")
platform.check_preliminaries()
# Make a bit of noise if this is a virtualised environment
if platform.is_virtual():
warn("This appears to be a virtualised host. The results will be flawed. "
"Use bare-metal for reliable results!")
platform.collect_audit()
# At this point the config file is OK, and on-disk state is consistent,
# so let's daemonise (if requested).
if args.daemonise:
util.daemonise()
if not on_first_invocation:
# output file must exist, due to check above
assert(out_file_exists)
debug("Using pre-recorded initial temperature readings")
manifest = ManifestManager(config, platform)
platform_temps = {}
for sensor, tup in manifest.starting_temperatures.iteritems():
platform_temps[sensor] = tup[1]
platform.starting_temperatures = platform_temps
else:
manifest = ManifestManager(config, platform, new_file=True)
if manifest.num_execs_left == 0:
# No executions, or all skipped
fatal("Empty schedule!")
try:
info(("Wait %s secs to allow system to cool prior to "
"collecting initial temperature readings") %
config.TEMP_READ_PAUSE)
# This part is wrapped in hooks, so that if daemons or networking are
# taken down for process executions, then the initial temperature
# reading gets the same treatment.
util.run_shell_cmd_list(config.PRE_EXECUTION_CMDS,)
platform.sleep(config.TEMP_READ_PAUSE)
debug("Taking fresh initial temperature readings")
platform.starting_temperatures = platform.take_temperature_readings()
manifest.set_starting_temperatures(platform.starting_temperatures)
# Write out an empty results file. After the initial reboot Krun
# will expect this to exist.
Results.ok_to_instantiate = True
results = Results(config, platform)
results.write_to_file()
except:
raise
finally:
util.run_shell_cmd_list(config.POST_EXECUTION_CMDS,)
log_path = config.log_filename(resume=False)
util.log_and_mail(mailer, debug,
"Benchmarking started",
"Benchmarking started.\nLogging to %s" %
log_path, bypass_limiter=True)
util.reboot(manifest, platform)
# Assign platform to VM defs -- needs to happen early for sanity checks
util.assign_platform(config, platform)
sanity_checks(config, platform)
# Build job queue -- each job is an execution
sched = ExecutionScheduler(config,
mailer,
platform,
dry_run=args.dry_run)
sched.run()