def __init__(self, raise_error_on_hang=True):
"""
Analyzes the initial state of the GPU and log history.
"""
# Attempt flushing system logs every second instead of every 10 minutes.
self.dirty_writeback_centisecs = utils.get_dirty_writeback_centisecs()
utils.set_dirty_writeback_centisecs(100)
self._raise_error_on_hang = raise_error_on_hang
logging.info(utils.get_board_with_frequency_and_memory())
self.graphics_kernel_memory = GraphicsKernelMemory()
if utils.get_cpu_arch() != 'arm':
if is_sw_rasterizer():
raise error.TestFail('Refusing to run on SW rasterizer.')
logging.info('Initialize: Checking for old GPU hangs...')
messages = open(self._MESSAGES_FILE, 'r')
for line in messages:
for hang in self._HANGCHECK:
if hang in line:
logging.info(line)
self.existing_hangs[line] = line
messages.close()
def finalize(self):
"""
Analyzes the state of the GPU, log history and emits warnings or errors
if the state changed since initialize. Also makes a note of the Chrome
version for later usage in the perf-dashboard.
"""
utils.set_dirty_writeback_centisecs(self.dirty_writeback_centisecs)
new_gpu_hang = False
new_gpu_warning = False
if utils.get_cpu_arch() != 'arm':
logging.info('Cleanup: Checking for new GPU hangs...')
messages = open(self._MESSAGES_FILE, 'r')
for line in messages:
for hang in self._HANGCHECK:
if hang in line:
if not line in self.existing_hangs.keys():
logging.info(line)
for warn in self._HANGCHECK_WARNING:
if warn in line:
new_gpu_warning = True
logging.warning(
'Saw GPU hang warning during test.')
else:
logging.warning(
'Saw GPU hang during test.')
new_gpu_hang = True
messages.close()
if not self._run_on_sw_rasterizer and is_sw_rasterizer():
logging.warning('Finished test on SW rasterizer.')
raise error.TestFail('Finished test on SW rasterizer.')
if self._raise_error_on_hang and new_gpu_hang:
raise error.TestError('Detected GPU hang during test.')
if new_gpu_hang:
raise error.TestWarn('Detected GPU hang during test.')
if new_gpu_warning:
raise error.TestWarn('Detected GPU warning during test.')