| # 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." |
| ATTRIBUTES = "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/chromeos-toolchain and search for AFDO for more information about AFDO. |
| For now, this test can only run on devices that support LBR PMU events and |
| that have at lest 2GB of space in /tmp (autotest limitation). |
| |
| Example invocation: |
| /usr/bin/test_that --debug --board=lumpy <DUT IP> |
| --args="ignore_failures=True local=True gs_test_location=True" |
| telemetry_AFDOGenerate |
| """ |
| |
| 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) |
