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psutil 2.1.3 is replacing psutil 1.0.1. There are numerous bug fixes and feature enhancements in psutil worth obtaining. Source code was obtained from https://pypi.python.org/packages/source/p/psutil/psutil-2.1.3.tar.gz and uncompressed into python/psutil without modification except for the removal of the egg-info directory and the .travis.yml file. --HG-- extra : source : 697eb6db7d96dc21e817cd27a7e46ed4ab00f9bb
150 lines
4.7 KiB
Plaintext
150 lines
4.7 KiB
Plaintext
TODO
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====
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A collection of ideas and notes about stuff to implement in future versions.
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"#NNN" occurrences refer to bug tracker issues at:
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https://github.com/giampaolo/psutil/issues
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HIGHER PRIORITY
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===============
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* #250: net ifaces speed.
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* #376: ifconfig functionalities aka psutil.net_ifaces (could be merged
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with #250)
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* OpenBSD support.
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* #371: CPU temperature (apparently OSX and Linux only; on Linux it requires
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lm-sensors lib).
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* #269: expose network ifaces RX/TW queues.
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* Process.threads(): thread names
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* Asynchronous psutil.Popen (see http://bugs.python.org/issue1191964)
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LOWER PRIORITY
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==============
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* #355: Android support.
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* #276: GNU/Hurd support.
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* #429: NetBSD support.
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* DragonFlyBSD support?
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* AIX support?
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* examples/pidof.py (same as 'pidof' cli tool)
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* examples/pstree.py (same as 'pstree' cli tool)
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* threads() should also return thread names in order to implement it
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* examples/taskmgr-gui.py (using tk).
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* system-wide number of open file descriptors:
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* https://jira.hyperic.com/browse/SIGAR-30
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* http://www.netadmintools.com/part295.html
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* Number of system threads.
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* Windows: http://msdn.microsoft.com/en-us/library/windows/desktop/ms684824(v=vs.85).aspx
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* #357: what CPU a process is on.
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* thread names:
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* https://code.google.com/p/plcrashreporter/issues/detail?id=65
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* Doc / wiki which compares similarities between UNIX cli tools and psutil.
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Example:
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df -a -> psutil.disk_partitions
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lsof -> psutil.Process.open_files() and psutil.Process.open_connections()
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killall-> (actual script)
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tty -> psutil.Process.terminal()
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who -> psutil.users()
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DEBATABLE
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=========
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* support wheels? http://pythonwheels.com/
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* advanced cmdline interface exposing the whole API and providing different
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kind of outputs (e.g. pprinted, colorized, json).
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* [Linux]: process cgroups (http://en.wikipedia.org/wiki/Cgroups). They look
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similar to prlimit() in terms of functionality but uglier (they should allow
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limiting per-process network IO resources though, which is great). Needs
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further reading.
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* Should we expose OS constants (psutil.WINDOWS, psutil.OSX etc.)?
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* Python 3.3. exposed different sched.h functions:
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http://docs.python.org/dev/whatsnew/3.3.html#os
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http://bugs.python.org/issue12655
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http://docs.python.org/dev/library/os.html#interface-to-the-scheduler
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It might be worth to take a look and figure out whether we can include some
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of those in psutil.
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Also, we can probably reimplement wait_pid() on POSIX which is currently
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implemented as a busy-loop.
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* Certain systems (XXX figure out which ones exactly) provide CPU times about
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process children. On those systems Process.cpu_times() might return
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a (user, system, user_children, system_children) ntuple.
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Also, os.times() provides 'elapsed' times as well.
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* Enrich exception classes hierarchy on Python >= 3.3 / post PEP-3151 so that:
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- NoSuchProcess inherits from ProcessLookupError
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- AccessDenied inherits from PermissionError
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- TimeoutExpired inherits from TimeoutError (debatable)
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See: http://docs.python.org/3/library/exceptions.html#os-exceptions
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* Process.threads() might grow an extra "id" parameter so that it can be
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used as such:
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>>> p = psutil.Process(os.getpid())
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>>> p.threads(id=psutil.current_thread_id())
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thread(id=2539, user_time=0.03, system_time=0.02)
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>>>
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Note: this leads to questions such as "should we have a custom NoSuchThread
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exception? Also see issue #418.
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Note #2: this would work with os.getpid() only.
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psutil.current_thread_id() might be desirable as per issue #418 though.
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* should psutil.TimeoutExpired exception have a 'msg' kwarg similar to
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NoSuchProcess and AccessDenied? Not that we need it, but currently we
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cannot raise a TimeoutExpired exception with a specific error string.
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* process_iter() might grow an "attrs" parameter similar to Process.as_dict()
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invoke the necessary methods and include the results into a "cache"
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attribute attached to the returned Process instances so that one can avoid
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catching NSP and AccessDenied:
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for p in process_iter(attrs=['cpu_percent']):
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print(p.cache['cpu_percent'])
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This also leads questions as whether we should introduce a sorting order.
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* round Process.memory_percent() result?
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COMPATIBILITY BREAKAGE
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======================
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Removals (will likely happen in 2.2):
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* (S) psutil.Process.nice (deprecated in 0.5.0)
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* (S) get_process_list (deprecated in 0.5.0)
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* (S) psutil.*mem* functions (deprecated in 0.3.0 and 0.6.0)
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* (M) psutil.network_io_counters (deprecated in 1.0.0)
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* (M) local_address and remote_address Process.connection() namedtuple fields
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(deprecated in 1.0.0)
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REJECTED IDEAS
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==============
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STUB |