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0eb4291b25
* updating copyright, back to the date of origin of file * updating regex to account for linter violation
80 lines
2.7 KiB
Python
80 lines
2.7 KiB
Python
# Copyright (C) 2021 Mandiant, Inc. All Rights Reserved.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at: [package root]/LICENSE.txt
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# Unless required by applicable law or agreed to in writing, software distributed under the License
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# is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and limitations under the License.
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import gc
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import linecache
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import tracemalloc
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tracemalloc.start()
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def display_top(snapshot, key_type="lineno", limit=10):
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# via: https://docs.python.org/3/library/tracemalloc.html#pretty-top
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snapshot = snapshot.filter_traces(
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(
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tracemalloc.Filter(False, "<frozen importlib._bootstrap_external>"),
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tracemalloc.Filter(False, "<frozen importlib._bootstrap>"),
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tracemalloc.Filter(False, "<unknown>"),
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)
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)
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top_stats = snapshot.statistics(key_type)
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print(f"Top {limit} lines")
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for index, stat in enumerate(top_stats[:limit], 1):
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frame = stat.traceback[0]
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print(f"#{index}: {frame.filename}:{frame.lineno}: {(stat.size/1024):.1f} KiB")
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line = linecache.getline(frame.filename, frame.lineno).strip()
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if line:
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print(f" {line}")
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other = top_stats[limit:]
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if other:
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size = sum(stat.size for stat in other)
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print(f"{len(other)} other: {(size/1024):.1f} KiB")
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total = sum(stat.size for stat in top_stats)
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print(f"Total allocated size: {(total/1024):.1f} KiB")
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def main():
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# import within main to keep isort happy
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# while also invoking tracemalloc.start() immediately upon start.
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import io
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import os
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import time
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import contextlib
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import psutil
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import capa.main
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count = int(os.environ.get("CAPA_PROFILE_COUNT", 1))
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print(f"total iterations planned: {count} (set via env var CAPA_PROFILE_COUNT).")
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print()
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for i in range(count):
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print(f"iteration {i+1}/{count}...")
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with contextlib.redirect_stdout(io.StringIO()), contextlib.redirect_stderr(io.StringIO()):
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t0 = time.time()
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capa.main.main()
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t1 = time.time()
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gc.collect()
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process = psutil.Process(os.getpid())
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print(f" duration: {(t1-t0):.2f}")
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print(f" rss: {(process.memory_info().rss / 1024 / 1024):.1f} MiB")
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print(f" vms: {(process.memory_info().vms / 1024 / 1024):.1f} MiB")
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print("done.")
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gc.collect()
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snapshot0 = tracemalloc.take_snapshot()
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display_top(snapshot0)
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main()
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