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#!/usr/bin/env python
#
# Copyright (C) 2016 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import logging
from vts.runners.host import asserts
from vts.runners.host import base_test
from vts.runners.host import const
from vts.runners.host import test_runner
from vts.utils.python.controllers import android_device
from vts.utils.python.cpu import cpu_frequency_scaling
from vts.utils.python.performance import benchmark_parser
class HwBinderPerformanceTest(base_test.BaseTestClass):
"""A test case for the HWBinder performance benchmarking.
Attributes:
dut: the target DUT (device under test) instance.
_cpu_freq: CpuFrequencyScalingController instance of self.dut.
"""
THRESHOLD = {
32: {
"4": 100000,
"8": 100000,
"16": 100000,
"32": 100000,
"64": 100000,
"128": 100000,
"256": 100000,
"512": 100000,
"1024": 100000,
"2k": 100000,
"4k": 100000,
"8k": 110000,
"16k": 120000,
"32k": 140000,
"64k": 170000,
},
64: {
"4": 100000,
"8": 100000,
"16": 100000,
"32": 100000,
"64": 100000,
"128": 100000,
"256": 100000,
"512": 100000,
"1024": 100000,
"2k": 100000,
"4k": 100000,
"8k": 110000,
"16k": 120000,
"32k": 150000,
"64k": 200000,
}
}
def setUpClass(self):
required_params = ["hidl_hal_mode"]
self.getUserParams(required_params)
self.dut = self.registerController(android_device)[0]
self.dut.shell.InvokeTerminal("one")
self.dut.shell.one.Execute("stop")
self.dut.shell.one.Execute("setprop sys.boot_completed 0")
self._cpu_freq = cpu_frequency_scaling.CpuFrequencyScalingController(self.dut)
self._cpu_freq.DisableCpuScaling()
def setUp(self):
self._cpu_freq.SkipIfThermalThrottling(retry_delay_secs=30)
def tearDown(self):
self._cpu_freq.SkipIfThermalThrottling()
def tearDownClass(self):
self._cpu_freq.EnableCpuScaling()
self.dut.shell.one.Execute("start")
self.dut.waitForBootCompletion()
def testRunBenchmark32Bit(self):
"""A testcase which runs the 32-bit benchmark."""
self.RunBenchmark(32)
def testRunBenchmark64Bit(self):
"""A testcase which runs the 64-bit benchmark."""
self.RunBenchmark(64)
def RunBenchmark(self, bits):
"""Runs the native binary and parses its result.
Args:
bits: integer (32 or 64), the number of bits in a word chosen
at the compile time (e.g., 32- vs. 64-bit library).
"""
# Runs the benchmark.
logging.info(
"Start to run the benchmark with HIDL mode %s (%s bit mode)",
self.hidl_hal_mode, bits)
binary = "/data/local/tmp/%s/libhwbinder_benchmark%s" % (bits, bits)
results = self.dut.shell.one.Execute([
"chmod 755 %s" % binary,
"VTS_ROOT_PATH=/data/local/tmp " \
"LD_LIBRARY_PATH=/system/lib%s:/data/local/tmp/%s/hw:"
"/data/local/tmp/%s:$LD_LIBRARY_PATH "
"%s -m %s --benchmark_format=json" %
(bits, bits, bits, binary, self.hidl_hal_mode.encode("utf-8"))
])
# Parses the result.
asserts.assertEqual(len(results[const.STDOUT]), 2)
logging.info("stderr: %s", results[const.STDERR][1])
logging.info("stdout: %s", results[const.STDOUT][1])
asserts.assertFalse(
any(results[const.EXIT_CODE]),
"HwBinderPerformanceTest failed.")
parser = benchmark_parser.GoogleBenchmarkJsonParser(
results[const.STDOUT][1])
label_result = parser.GetArguments()
value_result = parser.GetRealTime()
table_name = "hwbinder_vector_roundtrip_latency_benchmark_%sbits" % bits
self.addTableToResult(table_name, parser.ToTable())
# To upload to the web DB.
self.web.AddProfilingDataLabeledVector(
table_name,
label_result,
value_result,
x_axis_label="Message Size (Bytes)",
y_axis_label="Roundtrip HwBinder RPC Latency (naonseconds)")
# Assertions to check the performance requirements
for label, value in zip(label_result, value_result):
if label in self.THRESHOLD[bits]:
asserts.assertLess(
value, self.THRESHOLD[bits][label],
"%s ns for %s is longer than the threshold %s ns" % (
value, label, self.THRESHOLD[bits][label]))
if __name__ == "__main__":
test_runner.main()
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