blob: 89097abbc608aff3a3e2ec439215e96e8cc5bd93 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
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:]])
|
