svn.andrew.net.au/usbspindownd/diskstats.py

#!/usr/bin/python

#
# Python module for parsing /proc/diskstats on Linux
#
# Author: Andrew Pollock <me@andrew.net.au>
# Copyright: (c) 2008 Andrew Pollock
#

class DiskStat:

        def __init__(self, nrread, nrmergedread, nrsectorsread, msread, nrwrite, nrmergedwrite, nrsectorswrite, mswrite, nrio, msio, weightedmsio):
                self.nrread = nrread
                self.nrmergedread = nrmergedread
                self.nrsectorsread = nrsectorsread
                self.msread = msread
                self.nrwrite = nrwrite
                self.nrmergedwrite = nrmergedwrite
                self.nrsectorswrite = nrsectorswrite
                self.mswrite = mswrite
                self.nrio = nrio
                self.msio = msio
                self.weightedmsio = weightedmsio


class DiskStats:

        def __init__(self, disk):
                self.disk = disk.lstrip("/dev/")

        def diskstat(self):
                proc_diskstats = open("/proc/diskstats")
                stat = None
                while True:
                        line = proc_diskstats.readline()
                        if line == "":
                                break
                        else:
                                line = line.split()
                        
                        if line[2] == self.disk:
                                stat = line[3:]
                proc_diskstats.close()
                if stat:
                        ds = DiskStat(stat[0], stat[1], stat[2], stat[3], stat[4], stat[5], stat[6], stat[7], stat[8], stat[9], stat[10])
                        return ds
                else:
                        # Need to raise an exception here
                        pass

if __name__ == "__main__":
        ds = DiskStats("/dev/hda")
        print ds.diskstat()
1	#!/usr/bin/python
2
3	#
4	# Python module for parsing /proc/diskstats on Linux
5	#
6	# Author: Andrew Pollock <me@andrew.net.au>
7	# Copyright: (c) 2008 Andrew Pollock
8	#
9
10	class DiskStat:
11
12	def __init__(self, nrread, nrmergedread, nrsectorsread, msread, nrwrite, nrmergedwrite, nrsectorswrite, mswrite, nrio, msio, weightedmsio):
13	self.nrread = nrread
14	self.nrmergedread = nrmergedread
15	self.nrsectorsread = nrsectorsread
16	self.msread = msread
17	self.nrwrite = nrwrite
18	self.nrmergedwrite = nrmergedwrite
19	self.nrsectorswrite = nrsectorswrite
20	self.mswrite = mswrite
21	self.nrio = nrio
22	self.msio = msio
23	self.weightedmsio = weightedmsio
24
25
26	class DiskStats:
27
28	def __init__(self, disk):
29	self.disk = disk.lstrip("/dev/")
30
31	def diskstat(self):
32	proc_diskstats = open("/proc/diskstats")
33	stat = None
34	while True:
35	line = proc_diskstats.readline()
36	if line == "":
37	break
38	else:
39	line = line.split()
40
41	if line[2] == self.disk:
42	stat = line[3:]
43	proc_diskstats.close()
44	if stat:
45	ds = DiskStat(stat[0], stat[1], stat[2], stat[3], stat[4], stat[5], stat[6], stat[7], stat[8], stat[9], stat[10])
46	return ds
47	else:
48	# Need to raise an exception here
49	pass
50
51	if __name__ == "__main__":
52	ds = DiskStats("/dev/hda")
53	print ds.diskstat()