# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

from autotest_lib.client.common_lib import utils

AUTHOR = "llozano@chromium.org c-compiler-chrome@google.com"
NAME = "telemetry_AFDOGenerate"
PURPOSE = "Produce profile (AFDO format) of normal browsing for optimization."
SUITE = "AFDO_record"
TIME = "LONG"
TEST_CATEGORY = "Benchmark"
TEST_CLASS = "telemetry"
TEST_TYPE = "server"

DOC = """
Run a pre-defined set of benchmarks on the DUT and create a sampled profile
of the chrome execution. The profile is generated in AFDO format.
See go/afdo for more information about AFDO.
For now, this test is only designed to run on lumpy and parrot boards.
It will fail if run on other boards.

Example invocation:
/usr/bin/test_that --debug --board=lumpy <DUT IP>
  --args="ignore_failures=True local=True gs_test_location=True"
  telemetry_PGOGenerate
"""

args_dict = utils.args_to_dict(args)

profiler = 'custom_perf'
# These are arguments to the linux "perf" tool.
# The -e value is processor specific and comes from the Intel SDM vol 3b
profiler_args = 'record -a -e r20c4 -c 500000 -b '

job.default_profile_only = True
job.profilers.add(profiler, profiler_args)

def run_telemetry_AFDOGenerate(machine):
    run_host = hosts.create_host(machine)

    # TODO (llozano):
    # Pass "disable_sysinfo=True" to run_test since it would be nice
    # to avoid copying all the logs back to the server. However, we
    # cannot do this because of crosbug 308646
    job.run_test('telemetry_AFDOGenerate', host=run_host,
                  args=args_dict)

job.parallel_simple(run_telemetry_AFDOGenerate, machines)

if profiler:
    job.profilers.delete(profiler)