Apple-2-Tools
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atrcopy
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Profiling speedup #2: cache data array length

This commit is contained in:
Rob McMullen 2017-10-05 19:55:06 -07:00
parent 678148b6a1
commit 1fac3e6c31
1 changed files with 4 additions and 3 deletions
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7
atrcopy/segments.py
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@ -146,6 +146,7 @@ class SegmentData(object):
self.data = OrderWrapper(data, order)
else:
self.data = to_numpy(data)
self.calc_lookups()
if style is None:
if debug:
self.style = np.arange(len(self), dtype=np.uint8)
@ -160,13 +161,12 @@ class SegmentData(object):
extra = UserExtraData()
self.extra = extra
self.reverse_index_mapping = None
self.calc_lookups()
def __str__(self):
return "SegmentData id=%x indexed=%s data=%s len=%s" % (id(self), self.is_indexed, type(self.data), len(self.data))
def __len__(self):
return len(self.data)
return self.data_length
def resize(self, newsize):
if self.data.base is None:
@ -211,6 +211,7 @@ class SegmentData(object):
else:
self.data_start, self.data_end = np.byte_bounds(self.data)
self.base_start, self.base_end = np.byte_bounds(self.data.base)
self.data_length = len(self.data)
@property
def bufferedio(self):
@ -564,7 +565,7 @@ class DefaultSegment(object):
return s
def __len__(self):
return len(self.rawdata)
return self.rawdata.data_length
def __getitem__(self, index):
return self.data[index]