def test_dump_instr_json0001():
path = os.path.join(TEST_DIR, "example.krun")
config = Config(path)
instr_data = {k: ord(k) for k in "abcdef"}
make_instr_dir(config)
dump_instr_json("bench:vm:variant", 666, config, instr_data)
dump_dir = os.path.join(TEST_DIR, "example_instr_data")
dump_file = os.path.join(dump_dir, "bench__vm__variant__666.json.bz2")
with BZ2File(dump_file) as fh:
js = json.load(fh)
os.unlink(dump_file)
os.rmdir(dump_dir)
assert js == instr_data
def test_dump_instr_json0001():
path = os.path.join(TEST_DIR, "example.krun")
config = Config(path)
instr_data = {k: ord(k) for k in "abcdef"}
make_instr_dir(config)
dump_instr_json("bench:vm:variant", 666, config, instr_data)
dump_dir = os.path.join(TEST_DIR, "example_instr_data")
dump_file = os.path.join(dump_dir, "bench__vm__variant__666.json.bz2")
with BZ2File(dump_file) as fh:
js = json.load(fh)
os.unlink(dump_file)
os.rmdir(dump_dir)
assert js == instr_data
def run(self):
"""Benchmark execution starts here"""
# In reboot mode, wait for the system to come up before we proceed
if self.platform.hardware_reboots:
debug("Waiting %s seconds for the system to come up." %
str(STARTUP_WAIT_SECONDS))
self.platform.sleep(STARTUP_WAIT_SECONDS)
# Important that the dmesg is collected after the above startup wait.
# Otherwise we get spurious dmesg changes.
self.platform.collect_starting_dmesg()
assert self.manifest.num_execs_left > 0
self.platform.wait_for_temperature_sensors()
bench, vm, variant = self.manifest.next_exec_key.split(":")
key_pexec_idx = self.manifest.next_exec_key_index()
job = ExecutionJob(self, vm, self.config.VMS[vm], bench, variant,
self.config.BENCHMARKS[bench], key_pexec_idx)
# Default to error state. This is the value the finally block will see
# if an exception is raised inside the try block, otherwise it is
# re-assigned based on the result of running the benchmark.
flag = 'E'
# Run the pre-exec commands, the benchmark and the post-exec commands.
# These are wrapped in a try/except, so that the post-exec commands
# are always executed, even if an exception has occurred. We only
# reboot /after/ the post-exec commands have completed.
results = None
try:
# Run the user's pre-process-execution commands. We can't put an
# ETA estimate in the environment for the pre-commands as we have
# not (and should not) load the results file into memory yet.
#
# It might seem tempting to move this outside the try block, to
# ensure that post-hooks are only run if pre-hooks ran. We don't,
# thus avoiding the case where only *part* of the pre-hooks run,
# but the post-hooks then don't run.
util.run_shell_cmd_list(self.config.PRE_EXECUTION_CMDS,)
# We collect rough execution times separate from real results. The
# reason for this is that, even if a benchmark crashes it takes
# time and we need to account for this when making estimates. A
# crashing benchmark will give an empty list of iteration times,
# meaning we can't use 'raw_exec_result' below for estimates.
exec_start_time = time.time()
measurements, instr_data, flag = job.run(self.mailer, self.dry_run)
exec_end_time = time.time()
# Only now is it OK to load the results file into memory.
Results.ok_to_instantiate = True
results = Results(self.config, self.platform,
results_file=self.config.results_filename())
# Bail early if the process execution needs to be re-run.
if flag == "O":
util.run_shell_cmd_list(
self.config.POST_EXECUTION_CMDS,
extra_env=self._make_post_cmd_env(results)
)
info("Rebooting to re-run previous process execution")
util.reboot(self.manifest, self.platform, update_count=False)
# reboot() does not return
raise RuntimeError("reached unreachable code!")
# Store new result.
results.append_exec_measurements(job.key, measurements, flag)
# Store instrumentation data in a separate file
if job.vm_info["vm_def"].instrument:
key_exec_num = self.manifest.completed_exec_counts[job.key]
util.dump_instr_json(job.key, key_exec_num, self.config, instr_data)
eta_info = exec_end_time - exec_start_time
if self.platform.hardware_reboots:
# Add time taken to wait for system to come up if we are in
# hardware-reboot mode.
eta_info += STARTUP_WAIT_SECONDS
results.eta_estimates[job.key].append(eta_info)
self.manifest.update(flag)
except Exception:
raise
finally:
# Run the user's post-process-execution commands with updated
# ETA estimates. Important that this happens *after* dumping
# results, as the user is likely copying intermediate results to
# another host.
# _make_post_cmd_env() needs the results to make an ETA. If an
# exception occurred in the above try block, there's a chance that
# they have not have been loaded.
if results is None:
Results.ok_to_instantiate = True
results = Results(self.config, self.platform,
results_file=self.config.results_filename())
# If errors occured, set error flag in results file
if self.platform.check_dmesg_for_changes(self.manifest) or \
flag == 'E':
results.error_flag = True
results.write_to_file()
util.run_shell_cmd_list(
self.config.POST_EXECUTION_CMDS,
extra_env=self._make_post_cmd_env(results)
)
tfmt = self.get_overall_time_estimate_formatter(results)
if self.manifest.eta_avail_idx == self.manifest.next_exec_idx:
# We just found out roughly how long the session has left, mail out.
msg = "ETA for current session now known: %s" % tfmt.finish_str
util.log_and_mail(self.mailer, debug,
"ETA for Current Session Available",
msg, bypass_limiter=True)
info("{:<25s}: {} ({} from now)".format(
"Estimated completion (whole session)", tfmt.finish_str,
tfmt.delta_str))
info("%d executions left in scheduler queue" % self.manifest.num_execs_left)
if self.manifest.num_execs_left > 0 and \
self.manifest.eta_avail_idx > self.manifest.next_exec_idx:
info("Executions until ETA known: %s" %
(self.manifest.eta_avail_idx -
self.manifest.next_exec_idx))
# Although it would have been nice to have checked this prior to
# running the execution, it depends on the results file, which we
# should not load prior to the process execution.
util.check_audit_unchanged(results, self.platform)
assert self.manifest.num_execs_left >= 0
if self.manifest.num_execs_left > 0:
# print info about the next job
benchmark, vm_name, variant = \
self.manifest.next_exec_key.split(":")
info("Next execution is '%s(%d)' (%s variant) under '%s'" %
(benchmark, self.config.BENCHMARKS[benchmark], variant, vm_name))
tfmt = self.get_exec_estimate_time_formatter(job.key, results)
info("{:<35s}: {} ({} from now)".format(
"Estimated completion (next execution)",
tfmt.finish_str,
tfmt.delta_str))
info("Reboot in preparation for next execution")
util.reboot(self.manifest, self.platform)
elif self.manifest.num_execs_left == 0:
self.platform.save_power()
if self.config.ENABLE_PINNING:
self.platform.clear_cpu_pinning()
info("Done: Results dumped to %s" % self.config.results_filename())
err_msg = "Errors/warnings occurred -- read the log!"
if results.error_flag:
warn(err_msg)
msg = "Session completed. Log file at: '%s'" % (self.log_path)
if results.error_flag:
msg += "\n\n%s" % err_msg
msg += "\n\nDon't forget to disable Krun at boot."
util.log_and_mail(self.mailer, info, "Benchmarks Complete", msg,
bypass_limiter=True)