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Copy pathlive_heap_tracker.py
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103 lines (93 loc) · 3.72 KB
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# Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# The Universal Permissive License (UPL), Version 1.0
#
# Subject to the condition set forth below, permission is hereby granted to any
# person obtaining a copy of this software, associated documentation and/or
# data (collectively the "Software"), free of charge and under any and all
# copyright rights in the Software, and any and all patent rights owned or
# freely licensable by each licensor hereunder covering either (i) the
# unmodified Software as contributed to or provided by such licensor, or (ii)
# the Larger Works (as defined below), to deal in both
#
# (a) the Software, and
#
# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
# one is included with the Software each a "Larger Work" to which the Software
# is contributed by such licensors),
#
# without restriction, including without limitation the rights to copy, create
# derivative works of, display, perform, and distribute the Software and make,
# use, sell, offer for sale, import, export, have made, and have sold the
# Software and the Larger Work(s), and to sublicense the foregoing rights on
# either these or other terms.
#
# This license is subject to the following condition:
#
# The above copyright notice and either this complete permission notice or at a
# minimum a reference to the UPL must be included in all copies or substantial
# portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
from pathlib import Path
import re
import subprocess
import sys
import time
TOTAL_RE = re.compile(r'^Total +\d+ +(\d+)', re.MULTILINE)
PRIVATE_RE = re.compile(r'Private_(?:Clean|Dirty):\s+(\d+) kB')
def jmap(jmap_binary, ppid):
if not jmap_binary:
return 0
try:
jmap_output = subprocess.check_output(
[jmap_binary, '-histo:live', str(ppid)],
universal_newlines=True,
stderr=subprocess.DEVNULL,
)
if match := TOTAL_RE.search(jmap_output):
heap_bytes = int(match.group(1))
return heap_bytes
except (subprocess.CalledProcessError, subprocess.TimeoutExpired):
pass
return 0
def uss(ppid):
smap = Path(f"/proc/{ppid}/smaps")
try:
memory_map = smap.read_text()
total_bytes = sum(int(val) * 1024 for val in PRIVATE_RE.findall(memory_map))
return total_bytes
except FileNotFoundError:
pass
return 0
def main():
output_file = sys.argv[1]
iterations = int(sys.argv[2])
jmap_binary = sys.argv[3]
benchmark = sys.argv[4:]
# Run the benchmark once to ensure pyc files are generated
subprocess.check_call(benchmark)
with open(output_file, 'w') as f:
t0 = time.time()
for _ in range(iterations):
proc = subprocess.Popen(benchmark)
ppid = proc.pid
while proc.poll() is None:
time.sleep(0.1)
uss_bytes = uss(ppid)
heap_bytes = jmap(jmap_binary, ppid)
f.write(f"{heap_bytes} {uss_bytes}\n")
# cut short if this is a long benchmark
if time.time() - t0 > 30:
break
if proc.returncode != 0:
sys.exit(proc.returncode)
if __name__ == '__main__':
main()