33 lines
1.3 KiB
Python
33 lines
1.3 KiB
Python
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# Copyright (c) 2012 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Provides an interface to communicate with the device via the adb command.
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Assumes adb binary is currently on system path.
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"""
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import collections
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def ParseIoStatsLine(line):
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"""Parses a line of io stats into a IoStats named tuple."""
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# Field definitions: http://www.kernel.org/doc/Documentation/iostats.txt
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IoStats = collections.namedtuple('IoStats',
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['device',
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'num_reads_issued',
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'num_reads_merged',
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'num_sectors_read',
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'ms_spent_reading',
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'num_writes_completed',
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'num_writes_merged',
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'num_sectors_written',
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'ms_spent_writing',
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'num_ios_in_progress',
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'ms_spent_doing_io',
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'ms_spent_doing_io_weighted',
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])
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fields = line.split()
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return IoStats._make([fields[2]] + [int(f) for f in fields[3:]])
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