# Copyright 2016 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from devil import base_error as devil_error # pylint: disable=import-error
from devil.android import device_utils # pylint: disable=import-error
from telemetry.web_perf import timeline_based_measurement
from telemetry.timeline import chrome_trace_config
_JS_FLAGS_SWITCH = '--js-flags='
LOW_END_DEVICE_MEMORY_KB = 1024 * 1024 # 1 GB
def GetDeviceTotalMemory():
try:
devices = device_utils.DeviceUtils.HealthyDevices()
if not devices:
return None
mem_info = devices[0].ReadFile('/proc/meminfo')
except devil_error.BaseError:
return None
for line in mem_info.splitlines():
if line.startswith('MemTotal:'):
return int(line.split()[1])
return None
def AppendJSFlags(options, js_flags):
existing_js_flags = ''
# There should be only one occurence of --js-flags in the browser flags. When
# there are multiple flags, only one of them would be used. Append any
# additional js_flags to the existing flags (if present).
for extra_arg in options.extra_browser_args:
if extra_arg.startswith(_JS_FLAGS_SWITCH):
# Find and remove the set of existing js_flags.
existing_js_flags = extra_arg[len(_JS_FLAGS_SWITCH):]
options.extra_browser_args.remove(extra_arg)
break
options.AppendExtraBrowserArgs([
# Add a new --js-flags which includes previous flags.
'%s%s %s' % (_JS_FLAGS_SWITCH, js_flags, existing_js_flags)
])
def AugmentOptionsForV8Metrics(options, enable_runtime_call_stats=True):
categories = [
# Disable all categories by default.
'-*',
# Memory categories.
'disabled-by-default-memory-infra',
'toplevel',
# V8 categories.
'cppgc',
'disabled-by-default-cppgc',
'disabled-by-default-v8.gc',
'v8',
'v8.wasm',
'v8.console',
'webkit.console',
# Blink categories.
'blink.resource',
'partition_alloc',
# Needed for the metric reported by page.
'blink.user_timing'
]
options.ExtendTraceCategoryFilter(categories)
if enable_runtime_call_stats:
options.AddTraceCategoryFilter('disabled-by-default-v8.runtime_stats')
options.config.enable_android_graphics_memtrack = True
# Trigger periodic light memory dumps every 1000 ms.
memory_dump_config = chrome_trace_config.MemoryDumpConfig()
memory_dump_config.AddTrigger('light', 1000)
options.config.chrome_trace_config.SetMemoryDumpConfig(memory_dump_config)
# On low-end devices there's not enough memory to hold 400Mb buffer (See
# crbug.com/1218139).
device_memory = GetDeviceTotalMemory()
if device_memory and device_memory < LOW_END_DEVICE_MEMORY_KB:
options.config.chrome_trace_config.SetTraceBufferSizeInKb(200 * 1024)
else:
options.config.chrome_trace_config.SetTraceBufferSizeInKb(400 * 1024)
metrics = [
'blinkResourceMetric',
'consoleErrorMetric',
'expectedQueueingTimeMetric',
'gcMetric',
'memoryMetric',
'reportedByPageMetric',
'wasmMetric',
]
options.ExtendTimelineBasedMetric(metrics)
if enable_runtime_call_stats:
options.AddTimelineBasedMetric('runtimeStatsTotalMetric')
return options
class V8PerfMixin(object):
"""Base class for V8 benchmarks that measure RuntimeStats,
eqt, gc and memory metrics.
"""
def CreateCoreTimelineBasedMeasurementOptions(self):
options = timeline_based_measurement.Options()
AugmentOptionsForV8Metrics(options)
return options
def SetExtraBrowserOptions(self, options):
options.AppendExtraBrowserArgs(
'--enable-blink-features=BlinkRuntimeCallStats')
options.AppendExtraBrowserArgs(['--disable-popup-blocking'])
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