def example_trace_malloc_for_documentation(list_of_strings):
"""An example of using the trace_malloc.trace_malloc_report decorator for logging memory usage.
Typical output::
example_trace_malloc_for_documentation()
pymemtrace/pymemtrace/examples/example_trace_malloc.py:0: size=8194 KiB (+8193 KiB), count=16 (+10), average=512 KiB
/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/tracemalloc.py:0: size=6720 B (+552 B), count=43 (+11), average=156 B
pymemtrace/pymemtrace/trace_malloc.py:0: size=3076 B (-468 B), count=10 (-1), average=308 B
/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/logging/__init__.py:0: size=16.3 KiB (-176 B), count=49 (-3), average=340 B
/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/abc.py:0: size=3169 B (+0 B), count=30 (+0), average=106 B
/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/posixpath.py:0: size=480 B (+0 B), count=1 (+0), average=480 B
/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/threading.py:0: size=168 B (+0 B), count=2 (+0), average=84 B
/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/_weakrefset.py:0: size=72 B (+0 B), count=1 (+0), average=72 B
"""
print(f'example_trace_malloc_for_documentation()')
with trace_malloc.TraceMalloc('filename') as tm:
for i in range(8):
list_of_strings.append(create_string(1024**2))
# list_of_strings.append(create_string(128))
print(f' tm.memory_start={tm.memory_start}')
print(f'tm.memory_finish={tm.memory_finish}')
print(f' tm.diff={tm.diff}')
for stat in tm.statistics:
print(stat)
print()
for stat in tm.net_statistics():
print(stat)
def example():
for function in (test_under_512, test_over_512, test_well_over_512):
print(f'Function: {function}')
list_of_strings = []
# with trace_malloc.TraceMalloc('filename') as tm:
with trace_malloc.TraceMalloc('lineno') as tm:
function(list_of_strings)
print(f'tm.memory_start={tm.memory_start}')
print(f'tm.memory_finish={tm.memory_finish}')
for stat in tm.net_statistics():
print(stat)
print()
def test_trace_malloc_simple():
list_of_strings = []
# with trace_malloc.TraceMalloc('filename') as tm:
with trace_malloc.TraceMalloc('lineno') as tm:
list_of_strings.append(' ' * 1024)
print(f'tm.memory_start={tm.memory_start}')
print(f'tm.memory_finish={tm.memory_finish}')
# for stat in tm.net_statistics():
# print(stat)
# assert tm.diff == 0, f'tm.diff={tm.diff}'
assert len(tm.net_statistics()) in (
3,
5,
6,
)
assert len(tm.statistics) > 3
def example_timeit_under_512_with_trace_malloc(key_type):
list_of_strings = []
with trace_malloc.TraceMalloc(key_type) as tm:
test_under_512(list_of_strings)