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@ -7,31 +7,42 @@
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A script to set up startup profiling with the Firefox Profiler. See
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https://profiler.firefox.com/docs/#/./guide-remote-profiling?id=startup-profiling
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for more information.
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TODO: This script is a little janky and could be improved. For example, we
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should probably avoid having a separate config directory.
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"""
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import os
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import pathlib
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import sys
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import tempfile
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from subprocess import run
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SCRIPT_NAME=os.path.basename(__file__)
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SCRIPT_DIR=pathlib.Path(__file__).parent.absolute()
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CONFIG_DIR=os.path.join(SCRIPT_DIR, 'startup-profiling-configs')
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PATH_PREFIX='/data/local/tmp'
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GV_CONFIG=b'''env:
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MOZ_PROFILER_STARTUP: 1
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MOZ_PROFILER_STARTUP_INTERVAL: 5
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MOZ_PROFILER_STARTUP_FEATURES: threads,js,stackwalk,leaf,screenshots,ipcmessages,java
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MOZ_PROFILER_STARTUP_FILTERS: GeckoMain,Compositor,Renderer,IPDL Background
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'''
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def print_usage_and_exit():
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print('USAGE: ./{} [push|remove] <app-id>'.format(SCRIPT_NAME), file=sys.stderr)
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print('example: ./{} push org.mozilla.fenix'.format(SCRIPT_NAME), file=sys.stderr)
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sys.exit(1)
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def push(id, filename):
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run(['adb', 'push', os.path.join(CONFIG_DIR, filename), PATH_PREFIX])
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run(['adb', 'shell', 'am', 'set-debug-app', '--persistent', id])
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print('Startup profiling enabled on all future start ups, possibly even after reinstall. Call script with `remove` to disable it.')
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config = tempfile.NamedTemporaryFile(delete=False)
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try:
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# I think the file needs to be closed to save its contents for adb push to
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# work correctly so we close it here and later delete it manually.
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with config.file as f:
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f.write(GV_CONFIG)
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run(['adb', 'push', config.name, os.path.join(PATH_PREFIX, filename)])
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run(['adb', 'shell', 'am', 'set-debug-app', '--persistent', id])
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print('Startup profiling enabled on all future start ups, possibly even after reinstall. Call script with `remove` to disable it.')
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finally:
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os.remove(config.name)
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def remove(filename):
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run(['adb', 'shell', 'rm', PATH_PREFIX + '/' + filename])
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