tools.skpbench._hardware_pixel.HardwarePixel Class Reference

Inheritance diagram for tools.skpbench._hardware_pixel.HardwarePixel:

Public Member Functions
	__init__ (self, adb)
	__enter__ (self)
	sanity_check (self)
Public Member Functions inherited from tools.skpbench._hardware_android.HardwareAndroid
	__exit__ (self, exception_type, exception_value, traceback)
	print_debug_diagnostics (self)
	setDesiredClock (self, c)
	lock_top_three_cores (self)
	lock_adreno_gpu (self)
Public Member Functions inherited from tools.skpbench._hardware.Hardware
	filter_line (self, line)

Additional Inherited Members
Public Attributes inherited from tools.skpbench._hardware_android.HardwareAndroid
	warmup_time
	desiredClock
Public Attributes inherited from tools.skpbench._hardware.Hardware
	warmup_time
Protected Attributes inherited from tools.skpbench._hardware_android.HardwareAndroid
	_adb

Detailed Description

Definition at line 12 of file _hardware_pixel.py.

Constructor & Destructor Documentation

__init__()

tools.skpbench._hardware_pixel.HardwarePixel.__init__	(		self,
			adb
	)

Reimplemented from tools.skpbench._hardware_android.HardwareAndroid.

Definition at line 13 of file _hardware_pixel.py.

  def __init__(self, adb):
    HardwareAndroid.__init__(self, adb)
 

Member Function Documentation

__enter__()

tools.skpbench._hardware_pixel.HardwarePixel.__enter__

(

self

)

Reimplemented from tools.skpbench._hardware_android.HardwareAndroid.

Definition at line 16 of file _hardware_pixel.py.

  def __enter__(self):
    HardwareAndroid.__enter__(self)
    if not self._adb.is_root():
      return self
 
    self._adb.shell('\n'.join([
      # enable and lock the two fast cores.
      '''
      stop thermal-engine
      stop perfd
 
      for N in 3 2; do
        echo 1 > /sys/devices/system/cpu/cpu$N/online
        echo userspace > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_governor
        echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_max_freq
        echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_min_freq
        echo %i > /sys/devices/system/cpu/cpu$N/cpufreq/scaling_setspeed
      done''' % tuple(CPU_CLOCK_RATE for _ in range(3)),
 
      # turn off the two slow cores
      '''
      for N in 1 0; do
        echo 0 > /sys/devices/system/cpu/cpu$N/online
      done''',
 
      # pylint: disable=line-too-long
 
      # Set GPU bus and idle timer
      # Set DDR frequency to max
      # Set GPU to performance mode, 315 MHZ
      # See https://android.googlesource.com/platform/frameworks/base/+/master/libs/hwui/tests/scripts/prep_marlfish.sh
      '''
      echo 0 > /sys/class/kgsl/kgsl-3d0/bus_split
      echo 1 > /sys/class/kgsl/kgsl-3d0/force_clk_on
      echo 10000 > /sys/class/kgsl/kgsl-3d0/idle_timer
 
      echo 13763 > /sys/class/devfreq/soc:qcom,gpubw/min_freq
 
      echo performance > /sys/class/kgsl/kgsl-3d0/devfreq/governor
      echo %i > /sys/class/kgsl/kgsl-3d0/devfreq/max_freq
      echo %i > /sys/class/kgsl/kgsl-3d0/devfreq/min_freq
 
      echo 4 > /sys/class/kgsl/kgsl-3d0/max_pwrlevel
      echo 4 > /sys/class/kgsl/kgsl-3d0/min_pwrlevel''' %
      tuple(GPU_CLOCK_RATE for _ in range(2))]))
 
    return self
 

sanity_check()

tools.skpbench._hardware_pixel.HardwarePixel.sanity_check

(

self

)

Raises a HardwareException if any hardware state is not as expected.

Reimplemented from tools.skpbench._hardware_android.HardwareAndroid.

Definition at line 64 of file _hardware_pixel.py.

  def sanity_check(self):
    HardwareAndroid.sanity_check(self)
 
    if not self._adb.is_root():
      return
 
    result = self._adb.check(' '.join(
      ['cat',
       '/sys/class/power_supply/battery/capacity',
       '/sys/devices/system/cpu/online'] + \
      ['/sys/devices/system/cpu/cpu%i/cpufreq/scaling_cur_freq' % i
       for i in range(2, 4)] + \
      ['/sys/kernel/debug/clk/bimc_clk/measure',
       '/sys/class/thermal/thermal_zone22/temp',
       '/sys/class/thermal/thermal_zone23/temp']))
 
    expectations = \
      [Expectation(int, min_value=30, name='battery', sleeptime=30*60),
       Expectation(str, exact_value='2-3', name='online cpus')] + \
      [Expectation(int, exact_value=CPU_CLOCK_RATE, name='cpu_%i clock rate' %i)
       for i in range(2, 4)] + \
       [Expectation(long, min_value=902390000, max_value=902409999,
                   name='measured ddr clock', sleeptime=10),
       Expectation(int, max_value=41000, name='pm8994_tz temperature'),
       Expectation(int, max_value=40, name='msm_therm temperature')]
 
    Expectation.check_all(expectations, result.splitlines())

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The documentation for this class was generated from the following file:

• third_party/skia/tools/skpbench/_hardware_pixel.py