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PaddleDetection
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f8463629
编写于
2月 17, 2017
作者:
H
Helin Wang
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电子邮件补丁
差异文件
create buffered data reader decorator and tests
上级
6ab6c356
变更
5
隐藏空白更改
内联
并排
Showing
5 changed file
with
130 addition
and
0 deletion
+130
-0
python/CMakeLists.txt
python/CMakeLists.txt
+1
-0
python/paddle/reader/__init__.py
python/paddle/reader/__init__.py
+15
-0
python/paddle/reader/decorator.py
python/paddle/reader/decorator.py
+60
-0
python/paddle/reader/tests/CMakeLists.txt
python/paddle/reader/tests/CMakeLists.txt
+4
-0
python/paddle/reader/tests/decorator_test.py
python/paddle/reader/tests/decorator_test.py
+50
-0
未找到文件。
python/CMakeLists.txt
浏览文件 @
f8463629
...
...
@@ -24,6 +24,7 @@ add_custom_target(paddle_python ALL DEPENDS
${
OUTPUT_DIR
}
/.timestamp
)
add_subdirectory
(
paddle/trainer_config_helpers/tests
)
add_subdirectory
(
paddle/reader/tests
)
install
(
DIRECTORY
${
CMAKE_CURRENT_BINARY_DIR
}
/dist/
DESTINATION opt/paddle/share/wheels
...
...
python/paddle/reader/__init__.py
0 → 100644
浏览文件 @
f8463629
# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from
decorator
import
*
python/paddle/reader/decorator.py
0 → 100644
浏览文件 @
f8463629
# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
__all__
=
[
'buffered'
]
from
Queue
import
Queue
from
threading
import
Thread
def
buffered
(
reader
,
size
):
"""Creates a buffered data reader.
The buffered data reader will read and save data entries into a buffer.
Reading from the buffered data reader will proceed as long as the buffer
is not empty.
Args:
reader: the data reader to read from.
size: max buffer size.
Returns:
The buffered data reader.
"""
class
EndSignal
():
pass
end
=
EndSignal
()
def
read_worker
(
r
,
q
):
for
d
in
r
:
q
.
put
(
d
)
q
.
put
(
end
)
def
create_reader
():
r
=
reader
()
q
=
Queue
(
maxsize
=
size
)
t
=
Thread
(
target
=
read_worker
,
args
=
(
r
,
q
,
))
t
.
daemon
=
True
t
.
start
()
e
=
q
.
get
()
while
e
!=
end
:
yield
e
e
=
q
.
get
()
return
create_reader
python/paddle/reader/tests/CMakeLists.txt
0 → 100644
浏览文件 @
f8463629
add_test
(
NAME reader_decorator_test
COMMAND
${
PROJ_ROOT
}
/paddle/.set_python_path.sh -d
${
PROJ_ROOT
}
/python/
${
PYTHON_EXECUTABLE
}
${
PROJ_ROOT
}
/python/paddle/reader/decorator_test.py
WORKING_DIRECTORY
${
PROJ_ROOT
}
/python/paddle
)
python/paddle/reader/tests/decorator_test.py
0 → 100644
浏览文件 @
f8463629
# Copyright PaddlePaddle contributors. All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import
unittest
import
paddle.reader
import
time
def
reader_10
(
dur
):
for
i
in
range
(
10
):
time
.
sleep
(
dur
)
yield
i
class
TestBuffered
(
unittest
.
TestCase
):
def
test_read
(
self
):
for
size
in
range
(
20
):
b
=
paddle
.
reader
.
buffered
(
lambda
:
reader_10
(
0
),
size
)
c
=
0
for
i
in
b
():
self
.
assertEqual
(
i
,
c
)
c
+=
1
self
.
assertEqual
(
c
,
10
)
def
test_buffering
(
self
):
# read have 30ms delay.
b
=
paddle
.
reader
.
buffered
(
lambda
:
reader_10
(
0.03
),
10
)
last_time
=
time
.
time
()
for
idx
,
i
in
enumerate
(
b
()):
elapsed_time
=
time
.
time
()
-
last_time
if
i
==
0
:
time
.
sleep
(
0.3
)
else
:
# read time should be short, meaning already buffered.
self
.
assertLess
(
elapsed_time
,
0.01
)
last_time
=
time
.
time
()
if
__name__
==
'__main__'
:
unittest
.
main
()
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