Attachment #233611 for bug #279672

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Lines 1-7 Link Here

(-)a/README (-2 / +2 lines)
1	Iotop is a Python program with a top like UI used to show of behalf of which	1	Iotop is a Python program with a top like UI used to show of behalf of which
2	process is the I/O going on. It requires Python >= 2.5 (or Python >= 2.4 with	2	process is the I/O going on. It requires Python >= 2.5 (or Python >= 2.4 with
3	the ctypes module) and a Linux kernel >= 2.6.20 with the TASK_DELAY_ACCT and	3	the ctypes module) and a Linux kernel >= 2.6.20 with the TASK_DELAY_ACCT
4	TASK_IO_ACCOUNTING options enabled.	4	CONFIG_TASKSTATS, TASK_IO_ACCOUNTING and CONFIG_VM_EVENT_COUNTERS options on.
5		5
6		6
7	To run a local version of iotop:	7	To run a local version of iotop:

Lines 8-16 iotop \- simple top\-like I/O monitor Link Here

(-)a/iotop.1 (-3 / +3 lines)
8	.SH DESCRIPTION	8	.SH DESCRIPTION
9	iotop watches I/O usage information output by the Linux kernel (requires	9	iotop watches I/O usage information output by the Linux kernel (requires
10	2.6.20 or later) and displays a table of current I/O usage by processes	10	2.6.20 or later) and displays a table of current I/O usage by processes
11	or threads on the system. At least the CONFIG_TASK_DELAY_ACCT and	11	or threads on the system. At least the CONFIG_TASK_DELAY_ACCT,
12	CONFIG_TASK_IO_ACCOUNTING options need to be enabled in your Linux kernel	12	CONFIG_TASK_IO_ACCOUNTING, CONFIG_TASKSTATS and CONFIG_VM_EVENT_COUNTERS
13	build configuration, these options depend on CONFIG_TASKSTATS.	13	options need to be enabled in your Linux kernel build configuration.
14	.PP	14	.PP
15	iotop displays columns for the I/O bandwidth read and written by each	15	iotop displays columns for the I/O bandwidth read and written by each
16	process/thread during the sampling period. It also displays the percentage	16	process/thread during the sampling period. It also displays the percentage





#
# Check for requirements:
#   o Linux >= 2.6.20 with I/O accounting and VM event counters
#   o Python >= 2.5 or Python 2.4 + ctypes
#


    has_ctypes = False
else:
    has_ctypes = True
try:
    from iotop.vmstat import VmStat
    vmstat_f = VmStat()
except:
    vm_event_counters = False
else:
    vm_event_counters = True

if not ioaccounting or not has_ctypes or not vm_event_counters:
    def boolean2string(boolean):
        return boolean and 'Found' or 'Not found'
    print 'Could not run iotop as some of the requirements are not met:'
    if not ioaccounting or not vm_event_counters:
        print '- Linux >= 2.6.20 with'
	if not ioaccounting:
            print '  - I/O accounting support ' \
              '(CONFIG_TASKSTATS, CONFIG_TASK_DELAY_ACCT, ' \
              'CONFIG_TASK_IO_ACCOUNTING)'
        if not vm_event_counters:
            print '  - VM event counters (CONFIG_VM_EVENT_COUNTERS)'
    if not has_ctypes:
        print '- Python >= 2.5 or Python 2.4 with the ctypes module'

    sys.exit(1)

- 

Return to bug 279672

Lines 11-17 import time Link Here

(-)a/iotop/data.py (-10 / +19 lines)
11		11
12	#	12	#
13	# Check for requirements:	13	# Check for requirements:
14	# o Linux >= 2.6.20 with I/O accounting	14	# o Linux >= 2.6.20 with I/O accounting and VM event counters
15	# o Python >= 2.5 or Python 2.4 + ctypes	15	# o Python >= 2.5 or Python 2.4 + ctypes
16	#	16	#
17		17
Lines 22-37 except ImportError: Link Here
22	has_ctypes = False	22	has_ctypes = False
23	else:	23	else:
24	has_ctypes = True	24	has_ctypes = True
		25	try:
		26	from iotop.vmstat import VmStat
		27	vmstat_f = VmStat()
		28	except:
		29	vm_event_counters = False
		30	else:
		31	vm_event_counters = True
25		32
26	if not ioaccounting or not has_ctypes:	33	if not ioaccounting or not has_ctypes or not vm_event_counters:
27	def boolean2string(boolean):
28	return boolean and 'Found' or 'Not found'
29	print 'Could not run iotop as some of the requirements are not met:'	34	print 'Could not run iotop as some of the requirements are not met:'
30	print '- Linux >= 2.6.20 with I/O accounting support ' \	35	if not ioaccounting or not vm_event_counters:
31	'(CONFIG_TASKSTATS, CONFIG_TASK_DELAY_ACCT, ' \	36	print '- Linux >= 2.6.20 with'
32	'CONFIG_TASK_IO_ACCOUNTING):', boolean2string(ioaccounting)	37	if not ioaccounting:
33	print '- Python >= 2.5 or Python 2.4 with the ctypes module:', \	38	print ' - I/O accounting support ' \
34	boolean2string(has_ctypes)	39	'(CONFIG_TASKSTATS, CONFIG_TASK_DELAY_ACCT, ' \
		40	'CONFIG_TASK_IO_ACCOUNTING)'
		41	if not vm_event_counters:
		42	print ' - VM event counters (CONFIG_VM_EVENT_COUNTERS)'
		43	if not has_ctypes:
		44	print '- Python >= 2.5 or Python 2.4 with the ctypes module'
35		45
36	sys.exit(1)	46	sys.exit(1)
37		47
38	-