Current File : //proc/227033/root/proc/227033/root/usr/lib/python2.7/site-packages/salt/utils/win_pdh.pyc
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Salt Util for getting system information with the Performance Data Helper (pdh).
Counter information is gathered from current activity or log files.
Usage:
.. code-block:: python
import salt.utils.win_pdh
# Get a list of Counter objects
salt.utils.win_pdh.list_objects()
# Get a list of ``Processor`` instances
salt.utils.win_pdh.list_instances('Processor')
# Get a list of ``Processor`` counters
salt.utils.win_pdh.list_counters('Processor')
# Get the value of a single counter
# \Processor(*)\% Processor Time
salt.utils.win_pdh.get_counter('Processor', '*', '% Processor Time')
# Get the values of multiple counters
counter_list = [('Processor', '*', '% Processor Time'),
('System', None, 'Context Switches/sec'),
('Memory', None, 'Pages/sec'),
('Server Work Queues', '*', 'Queue Length')]
salt.utils.win_pdh.get_counters(counter_list)
# Get all counters for the Processor object
salt.utils.win_pdh.get_all_counters('Processor')
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Only works on Windows systems with the PyWin32
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Counter object
Has enumerations and functions for working with counters
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Makes a fully resolved counter path. Counter names are formatted like
this:
``\Processor(*)\% Processor Time``
The above breaks down like this:
obj = 'Processor'
instance = '*'
counter = '% Processor Time'
Args:
obj (str):
The top level object
instance (str):
The instance of the object
instance_index (int):
The index of the instance. Can usually be 0
counter (str):
The name of the counter
Returns:
Counter: A Counter object with the path if valid
Raises:
CommandExecutionError: If the path is invalid
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Add the current path to the query
Args:
query (obj):
The handle to the query to add the counter
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Get information about the counter
.. note::
GetCounterInfo sometimes crashes in the wrapper code. Fewer crashes
if this is called after sampling data.
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Return the counter value
Returns:
long: The counter value
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Returns the names of the flags that are set in the Type field
It can be used to format the counter.
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Get a list of available counter objects on the system
Returns:
list: A list of counter objects
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Get a list of counters available for the object
Args:
obj (str):
The name of the counter object. You can get a list of valid names
using the ``list_objects`` function
Returns:
list: A list of counters available to the passed object
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Get a list of instances available for the object
Args:
obj (str):
The name of the counter object. You can get a list of valid names
using the ``list_objects`` function
Returns:
list: A list of instances available to the passed object
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Create a list of Counter objects to be used in the pdh query
Args:
counter_list (list):
A list of tuples containing counter information. Each tuple should
contain the object, instance, and counter name. For example, to
get the ``% Processor Time`` counter for all Processors on the
system (``\Processor(*)\% Processor Time``) you would pass a tuple
like this:
```
counter_list = [('Processor', '*', '% Processor Time')]
```
If there is no ``instance`` for the counter, pass ``None``
Multiple counters can be passed like so:
```
counter_list = [('Processor', '*', '% Processor Time'),
('System', None, 'Context Switches/sec')]
```
.. note::
Invalid counters are ignored
Returns:
list: A list of Counter objects
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Get the values for all counters available to a Counter object
Args:
obj (str):
The name of the counter object. You can get a list of valid names
using the ``list_objects`` function
instance_list (list):
A list of instances to return. Use this to narrow down the counters
that are returned.
.. note::
``_Total`` is returned as ``*``
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Get the values for the passes list of counters
Args:
counter_list (list):
A list of counters to lookup
Returns:
dict: A dictionary of counters and their values
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Get the value of a single counter
Args:
obj (str):
The name of the counter object. You can get a list of valid names
using the ``list_objects`` function
instance (str):
The counter instance you wish to return. Get a list of instances
using the ``list_instances`` function
.. note::
``_Total`` is returned as ``*``
counter (str):
The name of the counter. Get a list of counters using the
``list_counters`` function
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