def test_exception_recover():
# weird file provided, fails without returning anything
fobj = FileObj([0x0])
with pytest.raises(ParseException):
_parse_jitlog(fobj)
# incomplete log, bails and adds exception
fobj = FileObj([
const.MARK_JITLOG_HEADER, b'\x01\x00\x00',
encode_str('x86_64'), b'\x00'
])
f = _parse_jitlog(fobj)
assert hasattr(f, 'exc')
assert "marker unknown" in f.exc.args[0]
# some valid data, but most of it missing
fobj = FileObj([
const.MARK_JITLOG_HEADER,
b'\x01\x00\x00',
encode_str('x86_64'),
const.MARK_START_TRACE,
encode_le_u64(0xffaa),
encode_str('loop'),
encode_le_u64(0),
const.MARK_TRACE,
encode_le_u64(0xffaa),
const.MARK_START_TRACE # uff, trace ends here, data missing
])
f = _parse_jitlog(fobj)
assert len(f.traces) == 1
assert hasattr(f, 'exc')
def test_exception_recover():
# weird file provided, fails without returning anything
fobj = FileObj([0x0])
with pytest.raises(ParseException):
_parse_jitlog(fobj)
# incomplete log, bails and adds exception
fobj = FileObj([const.MARK_JITLOG_HEADER,
b'\x01\x00\x00', encode_str('x86_64'),
b'\x00'
])
f = _parse_jitlog(fobj)
assert hasattr(f, 'exc')
assert "marker unknown" in f.exc.args[0]
# some valid data, but most of it missing
fobj = FileObj([const.MARK_JITLOG_HEADER,
b'\x01\x00\x00', encode_str('x86_64'),
const.MARK_START_TRACE, encode_le_u64(0xffaa), encode_str('loop'), encode_le_u64(0),
const.MARK_TRACE, encode_le_u64(0xffaa),
const.MARK_START_TRACE # uff, trace ends here, data missing
])
f = _parse_jitlog(fobj)
assert len(f.traces) == 1
assert hasattr(f, 'exc')
def test_32bit_log_header():
fobj = FileObj([const.MARK_JITLOG_HEADER+ b"\x01\x00\x01"+\
encode_str('ppc64le')])
forest = _parse_jitlog(fobj)
assert forest.version == 1
assert forest.word_size == 4
assert forest.machine == 'ppc64le'
def test_32bit_log_header():
fobj = FileObj([const.MARK_JITLOG_HEADER+ b"\x01\x00\x01"+\
encode_str('ppc64le')])
forest = _parse_jitlog(fobj)
assert forest.version == 1
assert forest.word_size == 4
assert forest.machine == 'ppc64le'
def decode_forest(self):
# ultra slow, especially when run on cpython 3.5
# see vmcache.cache for a faster impl. using pypy.
# it caches the results as well (not using pickle)
with get_reader(self.file.name) as fd:
forest = _parse_jitlog(fd)
return forest
def decode_forest(self):
# ultra slow, especially when run on cpython 3.5
# see vmcache.cache for a faster impl. using pypy.
# it caches the results as well (not using pickle)
with get_reader(self.file.name) as fd:
forest = _parse_jitlog(fd)
return forest
def test_32bit_read_trace():
fobj = FileObj([const.MARK_JITLOG_HEADER+ b"\x01\x00\x01"+encode_str('s390x'),
const.MARK_START_TRACE, encode_le_u32(0x15), encode_str('loop'), encode_le_u32(0),
])
forest = _parse_jitlog(fobj)
assert forest.version == 1
assert forest.word_size == 4
assert len(forest.traces) == 1
assert forest.machine == 's390x'
def decode_forest(self):
forest = FOREST_CACHE.get(self.checksum)
if forest:
FOREST_CACHE.set(self.checksum, forest) # refresh the cache
return forest
with get_reader(self.file.name) as fd:
forest = _parse_jitlog(fd)
FOREST_CACHE.set(self.checksum, forest)
return forest
def test_32bit_read_trace():
fobj = FileObj([
const.MARK_JITLOG_HEADER + b"\x01\x00\x01" + encode_str('s390x'),
const.MARK_START_TRACE,
encode_le_u32(0x15),
encode_str('loop'),
encode_le_u32(0),
])
forest = _parse_jitlog(fobj)
assert forest.version == 1
assert forest.word_size == 4
assert len(forest.traces) == 1
assert forest.machine == 's390x'
def load(self, type, filename, checksum):
profile = self.cache.get(checksum)
if profile:
log.msg("cached profile (checksum %s)" % (checksum,))
return profile
with get_reader(filename) as fobj:
if type == "cpu" or type == "mem" or type == "metacpu":
profile = read_cpu_profile(fobj)
else:
profile = parser._parse_jitlog(fobj)
self.cache.put(checksum, profile)
assert self.cache.get(checksum) is not None
log.msg("parsed jitlog in file %s (checksum %s)" % (filename, checksum))
return profile
def load(self, type, filename, checksum):
profile = self.cache.get(checksum)
if profile:
log.msg("cached profile (checksum %s)" % (checksum, ))
return profile
with get_reader(filename) as fobj:
if type == "cpu" or type == "mem" or type == "metacpu":
profile = read_cpu_profile(fobj)
else:
profile = parser._parse_jitlog(fobj)
self.cache.put(checksum, profile)
assert self.cache.get(checksum) is not None
log.msg("parsed jitlog in file %s (checksum %s)" %
(filename, checksum))
return profile