diff -r 000000000000 -r 6474c204b198 media/webrtc/trunk/build/android/pylib/io_stats_parser.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/media/webrtc/trunk/build/android/pylib/io_stats_parser.py Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,32 @@ +# Copyright (c) 2012 The Chromium Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Provides an interface to communicate with the device via the adb command. + +Assumes adb binary is currently on system path. +""" + + +import collections + + +def ParseIoStatsLine(line): + """Parses a line of io stats into a IoStats named tuple.""" + # Field definitions: http://www.kernel.org/doc/Documentation/iostats.txt + IoStats = collections.namedtuple('IoStats', + ['device', + 'num_reads_issued', + 'num_reads_merged', + 'num_sectors_read', + 'ms_spent_reading', + 'num_writes_completed', + 'num_writes_merged', + 'num_sectors_written', + 'ms_spent_writing', + 'num_ios_in_progress', + 'ms_spent_doing_io', + 'ms_spent_doing_io_weighted', + ]) + fields = line.split() + return IoStats._make([fields[2]] + [int(f) for f in fields[3:]])