def memory(self):
"""
Uses /proc/meminfo to obtain information on memory usage
See `man 5 proc` for more information
"""
mem_info = dict_from_file('/proc/meminfo')
total = to_bytes(*mem_info['MemTotal:'].split())
free = to_bytes(*mem_info['MemFree:'].split())
buffers = to_bytes(*mem_info['Buffers:'].split())
cached = to_bytes(*mem_info['Cached:'].split())
available = free + buffers + cached
pavailable = (available * 100) / total
used = total - available
pused = (used * 100) / total
return {
'total': total,
'free': free,
'buffers': buffers,
'cached': cached,
'available': available,
'pavailable': pavailable,
'used': used,
'pused': pused,
}
def memory(self):
"""
Uses /proc/meminfo to obtain information on memory usage
See `man 5 proc` for more information
"""
mem_info = dict_from_file('/proc/meminfo')
total = to_bytes(*mem_info['MemTotal:'].split())
free = to_bytes(*mem_info['MemFree:'].split())
buffers = to_bytes(*mem_info['Buffers:'].split())
cached = to_bytes(*mem_info['Cached:'].split())
available = free + buffers + cached
pavailable = (available * 100) / total
used = total - available
pused = (used * 100) / total
return {
'total': total,
'free': free,
'buffers': buffers,
'cached': cached,
'available': available,
'pavailable': pavailable,
'used': used,
'pused': pused,
}
def test_returns_dict(self):
ensure_contains_only_formatted_lines(FILE_PATH, 'key value')
d = dict_from_file(FILE_PATH)
assert_is_instance(d, dict)
assert_less(0, len(d))
def test_returns_dict(self):
ensure_contains_only_formatted_lines(FILE_PATH, 'key value')
d = dict_from_file(FILE_PATH)
assert_is_instance(d, dict)
assert_less(0, len(d))
def swap_info(self):
"""
Obtains information from /proc/vmstat
See `man 5 proc` for more information
"""
vmstat = dict_from_file('/proc/vmstat')
return SwapInfo(read=int(vmstat['pswpin']),
write=int(vmstat['pswpout']))
def swap_info(self):
"""
Obtains information from /proc/vmstat
See `man 5 proc` for more information
"""
vmstat = dict_from_file('/proc/vmstat')
return SwapInfo(read=int(vmstat['pswpin']),
write=int(vmstat['pswpout']))
def _process_status(self, process_id):
process_status_file_path = os.path.join('/proc', process_id, 'status')
process_status = dict_from_file(process_status_file_path, ':\t')
process_status['Uid'] = int(process_status['Uid'].split('\t')
[0]) # only effective UID is needed
process_status['State'] = PROCESS_STATE_MAP.get(
process_status['State'], 'sleep')
# VmSize field can be missing
# See ${linux}/fs/proc/array.c:proc_pid_status for more information
if 'VmSize' in process_status:
process_status['VmSize'] = to_bytes(
*process_status['VmSize'].split())
else:
process_status['VmSize'] = 0
return process_status
def _process_status(self, process_id):
process_status_file_path = os.path.join('/proc', process_id, 'status')
process_status = dict_from_file(process_status_file_path, ':\t')
process_status['Uid'] = int(
process_status['Uid'].split('\t')[0]
) # only effective UID is needed
process_status['State'] = PROCESS_STATE_MAP.get(
process_status['State'], 'sleep'
)
# VmSize field can be missing
# See ${linux}/fs/proc/array.c:proc_pid_status for more information
if 'VmSize' in process_status:
process_status['VmSize'] = to_bytes(
*process_status['VmSize'].split())
else:
process_status['VmSize'] = 0
return process_status
def test_lines_without_value_are_not_included(self):
ensure_contains_only_formatted_lines(FILE_PATH, 'key')
d = dict_from_file(FILE_PATH)
assert_equal(0, len(d))
def test_lines_without_value_are_not_included(self):
ensure_contains_only_formatted_lines(FILE_PATH, 'key')
d = dict_from_file(FILE_PATH)
assert_equal(0, len(d))
