tools.skpbench._hardware_pixel_c.HardwarePixelC Class Reference

Inheritance diagram for tools.skpbench._hardware_pixel_c.HardwarePixelC:

Public Member Functions
	__init__ (self, adb)
	__enter__ (self)
	filter_line (self, line)
	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)

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 15 of file _hardware_pixel_c.py.

Constructor & Destructor Documentation

__init__()

tools.skpbench._hardware_pixel_c.HardwarePixelC.__init__	(		self,
			adb
	)

Reimplemented from tools.skpbench._hardware_android.HardwareAndroid.

Definition at line 16 of file _hardware_pixel_c.py.

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

Member Function Documentation

__enter__()

tools.skpbench._hardware_pixel_c.HardwarePixelC.__enter__

(

self

)

Reimplemented from tools.skpbench._hardware_android.HardwareAndroid.

Definition at line 19 of file _hardware_pixel_c.py.

  def __enter__(self):
    HardwareAndroid.__enter__(self)
    if not self._adb.is_root():
      return self
 
    self._adb.shell('\n'.join([
      # pylint: disable=line-too-long
      # Based on https://android.googlesource.com/platform/frameworks/base/+/master/libs/hwui/tests/scripts/prep_ryu.sh
      # All CPUs have the same scaling settings, so we only need to set it once
      '''
      stop thermal-engine
      stop perfd
 
      echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
      echo %i > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
      echo %i > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
      echo %i > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
      ''' % tuple(CPU_CLOCK_RATE for _ in range(3)),
      # turn off the fourth core. This will hopefully produce less heat, allowing
      # for more consistent results.  3 cores should be enough to run Ganesh,
      # the graphics driver, and the OS.
      '''
      echo 0 > /sys/devices/system/cpu/cpu3/online''',
 
      # lock gpu/emc clocks.
      '''
      chown root:root /sys/devices/57000000.gpu/pstate
      echo %s > /sys/devices/57000000.gpu/pstate''' % GPU_EMC_PROFILE_ID]))
 
    return self
 

filter_line()

tools.skpbench._hardware_pixel_c.HardwarePixelC.filter_line	(		self,
			line
	)

Returns False if the provided output line can be suppressed.

Reimplemented from tools.skpbench._hardware.Hardware.

Definition at line 50 of file _hardware_pixel_c.py.

  def filter_line(self, line):
    JUNK = ['NvRmPrivGetChipPlatform: Could not read platform information',
            'Expected on kernels without fuse support, using silicon']
    return False if line in JUNK else HardwareAndroid.filter_line(self, line)
 

sanity_check()

tools.skpbench._hardware_pixel_c.HardwarePixelC.sanity_check

(

self

)

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

Reimplemented from tools.skpbench._hardware_android.HardwareAndroid.

Definition at line 55 of file _hardware_pixel_c.py.

  def sanity_check(self):
    HardwareAndroid.sanity_check(self)
 
    if not self._adb.is_root():
      return
 
    # only issue one shell command in an attempt to minimize interference.
    result = self._adb.check('''\
      cat /sys/class/power_supply/bq27742-0/capacity \
          /sys/devices/system/cpu/online \
          /sys/class/thermal/thermal_zone7/temp \
          /sys/class/thermal/thermal_zone0/temp \
          /sys/class/thermal/thermal_zone1/temp \
          /sys/class/thermal/thermal_zone7/cdev1/cur_state \
          /sys/class/thermal/thermal_zone7/cdev0/cur_state
      for N in 0 1 2; do
        cat /sys/devices/system/cpu/cpu$N/cpufreq/scaling_cur_freq
      done
      cat /sys/devices/57000000.gpu/pstate | grep \*$''')
 
    expectations = \
      [Expectation(int, min_value=30, name='battery', sleeptime=30*60),
       Expectation(str, exact_value='0-2', name='online cpus'),
       Expectation(int, max_value=40000, name='skin temperature'),
       Expectation(int, max_value=86000, name='cpu temperature'),
       Expectation(int, max_value=87000, name='gpu temperature'),
       Expectation(int, exact_value=0, name='cpu throttle'),
       Expectation(int, exact_value=0, name='gpu throttle')] + \
      [Expectation(int, exact_value=CPU_CLOCK_RATE,
                   name='cpu_%i clock rate' % i, sleeptime=30)
       for i in (0, 1, 2)] + \
      [Expectation(str, exact_value=GPU_EMC_PROFILE, name='gpu/emc profile')]
 
    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_c.py