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# Copyright (C) 2009 Canonical Ltd
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 3 as
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# published by the Free Software Foundation.
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""A program to spawn a subprocess and track how memory is consumed."""
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def spawn_and_track(opts, args):
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from meliae import perf_counter
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timer = perf_counter.perf_counter.get_timer()
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print 'spawning: %s' % (args,)
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# We have to use shell=False, otherwise we end up tracking the 'cmd.exe' or
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# 'sh' process, rather than the actual process we care about.
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p = subprocess.Popen(args, shell=False)
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mb = 1.0/(1024.0*1024)
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while p.poll() is None:
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cur_mem, peak_mem = perf_counter.perf_counter.get_memory(p)
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mem_secs += cur_mem * (now - last)
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time.sleep(opts.sleep_time)
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if now - last_print > 3:
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print '%8.3fs %6.1fMB %6.1fMB %8.1fMB*s \r' % (
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now - start, cur_mem*mb, peak_mem*mb, mem_secs*mb),
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print '%8.3fs %6.1fMB %6.1fMB %8.1fMB*s ' % (now - start,
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cur_mem*mb, peak_mem*mb, mem_secs*mb)
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p = optparse.OptionParser('%prog [local opts] command [opts]')
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p.add_option('--trace-file', type=str, default=None,
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help='Save the memory usage information to this file')
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p.add_option('--sleep-time', type=float, default=0.1,
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help='Check the status after this many seconds.')
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# All options after the first 'command' are passed to the command, so don't
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# try to process them ourselves.
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p.disable_interspersed_args()
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opts, args = p.parse_args(args)
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spawn_and_track(opts, args)
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if __name__ == '__main__':
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sys.exit(main(sys.argv[1:]))
added
removed
track_memory.py
