diff options
Diffstat (limited to 'media/webrtc/trunk/build/android/pylib/io_stats_parser.py')
| -rw-r--r-- | media/webrtc/trunk/build/android/pylib/io_stats_parser.py | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/media/webrtc/trunk/build/android/pylib/io_stats_parser.py b/media/webrtc/trunk/build/android/pylib/io_stats_parser.py new file mode 100644 index 000000000..89097abbc --- /dev/null +++ b/media/webrtc/trunk/build/android/pylib/io_stats_parser.py @@ -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:]]) |