mirror of
https://github.com/mandiant/capa.git
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ed7e0cd77d
* lint: replace isort/flake8 with ruff
* update ruff links
* remove stale isort reference
* update CHANGELOG
* address review
* remove unused imports
* remove unnecessary list comprehension
* remove quotes from type annotation
* use dict.get instead of if-else block
* remove unnecessary utf-8 encoding declaration
* Revert "remove unused imports"
This reverts commit 18ba50a22b.
* skip check for unused imports
* fix UP036 Version block is outdated for minimum Python version
* add TODO comment for unused imports
* replace black with ruff
* address review comments
85 lines
2.6 KiB
Python
85 lines
2.6 KiB
Python
# Copyright 2021 Google LLC
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#
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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
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# 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
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# 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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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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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 ruff 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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