blob: f84a594106ae41929cdb5dde8dd3ebe8dda31730 [file] [log] [blame]
#!/usr/bin/env python
# Copyright (C) 2020 The Android Open Source Project
#
# 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 __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import argparse
import os
import subprocess
import sys
import tempfile
import time
NULL = open(os.devnull)
PACKAGES_LIST_CFG = '''data_sources {
config {
name: "android.packages_list"
}
}
'''
CFG_IDENT = ' '
CFG = '''buffers {{
size_kb: 100024
fill_policy: RING_BUFFER
}}
data_sources {{
config {{
name: "android.java_hprof"
java_hprof_config {{
{target_cfg}
{continuous_dump_config}
}}
}}
}}
duration_ms: 20000
'''
CONTINUOUS_DUMP = """
continuous_dump_config {{
dump_phase_ms: 0
dump_interval_ms: {dump_interval}
}}
"""
PERFETTO_CMD = ('CFG=\'{cfg}\'; echo ${{CFG}} | '
'perfetto --txt -c - -o '
'/data/misc/perfetto-traces/java-profile-{user} -d')
def main(argv):
parser = argparse.ArgumentParser()
parser.add_argument(
"-o",
"--output",
help="Filename to save profile to.",
metavar="FILE",
default=None)
parser.add_argument(
"-p",
"--pid",
help="Comma-separated list of PIDs to "
"profile.",
metavar="PIDS")
parser.add_argument(
"-n",
"--name",
help="Comma-separated list of process "
"names to profile.",
metavar="NAMES")
parser.add_argument(
"-c",
"--continuous-dump",
help="Dump interval in ms. 0 to disable continuous dump.",
type=int,
default=0)
parser.add_argument(
"--no-versions",
action="store_true",
help="Do not get version information about APKs.")
parser.add_argument(
"--dump-smaps",
action="store_true",
help="Get information about /proc/$PID/smaps of target.")
parser.add_argument(
"--print-config",
action="store_true",
help="Print config instead of running. For debugging.")
args = parser.parse_args()
fail = False
if args.pid is None and args.name is None:
print("FATAL: Neither PID nor NAME given.", file=sys.stderr)
fail = True
target_cfg = ""
if args.pid:
for pid in args.pid.split(','):
try:
pid = int(pid)
except ValueError:
print("FATAL: invalid PID %s" % pid, file=sys.stderr)
fail = True
target_cfg += '{}pid: {}\n'.format(CFG_IDENT, pid)
if args.name:
for name in args.name.split(','):
target_cfg += '{}process_cmdline: "{}"\n'.format(CFG_IDENT, name)
if args.dump_smaps:
target_cfg += '{}dump_smaps: true\n'.format(CFG_IDENT)
if fail:
parser.print_help()
return 1
output_file = args.output
if output_file is None:
fd, name = tempfile.mkstemp('profile')
os.close(fd)
output_file = name
continuous_dump_cfg = ""
if args.continuous_dump:
continuous_dump_cfg = CONTINUOUS_DUMP.format(
dump_interval=args.continuous_dump)
cfg = CFG.format(
target_cfg=target_cfg,
continuous_dump_config=continuous_dump_cfg)
if not args.no_versions:
cfg += PACKAGES_LIST_CFG
if args.print_config:
print(cfg)
return 0
user = subprocess.check_output(['adb', 'shell', 'whoami']).strip()
perfetto_pid = subprocess.check_output(
['adb', 'exec-out',
PERFETTO_CMD.format(cfg=cfg, user=user)]).strip()
try:
int(perfetto_pid.strip())
except ValueError:
print("Failed to invoke perfetto: {}".format(perfetto_pid), file=sys.stderr)
return 1
print("Dumping Java Heap.")
exists = True
# Wait for perfetto cmd to return.
while exists:
exists = subprocess.call(
['adb', 'shell', '[ -d /proc/{} ]'.format(perfetto_pid)]) == 0
time.sleep(1)
subprocess.check_call(
['adb', 'pull', '/data/misc/perfetto-traces/java-profile-{}'.format(user),
output_file], stdout=NULL)
print("Wrote profile to {}".format(output_file))
print("This can be viewed using https://ui.perfetto.dev.")
if __name__ == '__main__':
sys.exit(main(sys.argv))