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

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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) self.data = OrderWrapper(data, order)
else: else:
self.data = to_numpy(data) self.data = to_numpy(data)
self.calc_lookups()
if style is None: if style is None:
if debug: if debug:
self.style = np.arange(len(self), dtype=np.uint8) self.style = np.arange(len(self), dtype=np.uint8)
@@ -160,13 +161,12 @@ class SegmentData(object):
extra = UserExtraData() extra = UserExtraData()
self.extra = extra self.extra = extra
self.reverse_index_mapping = None self.reverse_index_mapping = None
self.calc_lookups()
def __str__(self): def __str__(self):
return "SegmentData id=%x indexed=%s data=%s len=%s" % (id(self), self.is_indexed, type(self.data), len(self.data)) return "SegmentData id=%x indexed=%s data=%s len=%s" % (id(self), self.is_indexed, type(self.data), len(self.data))
def __len__(self): def __len__(self):
return len(self.data) return self.data_length
def resize(self, newsize): def resize(self, newsize):
if self.data.base is None: if self.data.base is None:
@@ -211,6 +211,7 @@ class SegmentData(object):
else: else:
self.data_start, self.data_end = np.byte_bounds(self.data) self.data_start, self.data_end = np.byte_bounds(self.data)
self.base_start, self.base_end = np.byte_bounds(self.data.base) self.base_start, self.base_end = np.byte_bounds(self.data.base)
self.data_length = len(self.data)
@property @property
def bufferedio(self): def bufferedio(self):
@@ -564,7 +565,7 @@ class DefaultSegment(object):
return s return s
def __len__(self): def __len__(self):
return len(self.rawdata) return self.rawdata.data_length
def __getitem__(self, index): def __getitem__(self, index):
return self.data[index] return self.data[index]