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jx d dk r[[edk r e dS dS )a/ psutil is a cross-platform library for retrieving information on
running processes and system utilization (CPU, memory, disks, network,
sensors) in Python. Supported platforms:
- Linux
- Windows
- macOS
- FreeBSD
- OpenBSD
- NetBSD
- Sun Solaris
- AIX
Works with Python versions 2.7 and 3.4+.
)divisionN )_common)AIX)BSD)
CONN_CLOSE)CONN_CLOSE_WAIT) CONN_CLOSING)CONN_ESTABLISHED)CONN_FIN_WAIT1)CONN_FIN_WAIT2)
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CONN_SYN_RECV)
CONN_SYN_SENT)CONN_TIME_WAIT)FREEBSD)LINUX)MACOS)NETBSD)NIC_DUPLEX_FULL)NIC_DUPLEX_HALF)NIC_DUPLEX_UNKNOWN)OPENBSD)OSX)POSIX)POWER_TIME_UNKNOWN)POWER_TIME_UNLIMITED) STATUS_DEAD)STATUS_DISK_SLEEP) STATUS_IDLE)
STATUS_LOCKED)
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f$ r Y @w xY w| S )z{Return a {pid: ppid, ...} dict for all running processes in
one shot. Used to speed up Process.children().
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Zd Zd Zed Zd Zd Zd Zd Zd Zd Zd Z dEdZ e red Z d Z d Z!d Z" e#e$j% d rd Z& e#e$j% d rdGd Z' e#e$j% d! rdEd"Z( e#e$j% d# rdEd$Z) e#e$j% d% rd& Z* e#e$j% d' rd( Z+e,rd) Z-d* Z.d+ Z/ e#e$j% d, rd- Z0e1dFd. Z2dEd/Z3ed0 Z4ed1 Z5 e6j7 d23 d4 Z8d5 Z9dHd7Z: e#e$j% d8 rdId:Z;d; Z Z>e1d? Z?e1d@ Z@e1dA ZAe1dB ZBe1dC ZCdEdDZDdS )KrT a) Represents an OS process with the given PID.
If PID is omitted current process PID (os.getpid()) is used.
Raise NoSuchProcess if PID does not exist.
Note that most of the methods of this class do not make sure
the PID of the process being queried has been reused over time.
That means you might end up retrieving an information referring
to another process in case the original one this instance
refers to is gone in the meantime.
The only exceptions for which process identity is pre-emptively
checked and guaranteed are:
- parent()
- children()
- nice() (set)
- ionice() (set)
- rlimit() (set)
- cpu_affinity (set)
- suspend()
- resume()
- send_signal()
- terminate()
- kill()
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| | j w xY wddd dS # 1 swxY w Y dS )a# Utility context manager which considerably speeds up the
retrieval of multiple process information at the same time.
Internally different process info (e.g. name, ppid, uids,
gids, ...) may be fetched by using the same routine, but
only one information is returned and the others are discarded.
When using this context manager the internal routine is
executed once (in the example below on name()) and the
other info are cached.
The cache is cleared when exiting the context manager block.
The advice is to use this every time you retrieve more than
one information about the process. If you're lucky, you'll
get a hell of a speedup.
>>> import psutil
>>> p = psutil.Process()
>>> with p.oneshot():
... p.name() # collect multiple info
... p.cpu_times() # return cached value
... p.cpu_percent() # return cached value
... p.create_time() # return cached value
...
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which case return False.
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)r r r r r s rr r z Process.ppidT s@ :??$$ $ 8tz'8'8DJ: rt c t r| j | j S | j }t r~t | dk rk | }|rThe process name. The return value is cached after first call.N r )
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6 6 8 8D rt c 4 | j S )z6Process current working directory as an absolute path.)r cwdr s rr r' z Process.cwd s z~~ rt c || j S | st | j | j | j | dS )z'Get or set process niceness (priority).N)r nice_getr r0 r r nice_set)r values rr nicez Process.nice s] =:&&(( (??$$
:#DHdj999 J & & & & &rt c 4 | j S )zVReturn process UIDs as a (real, effective, saved)
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)r gidsr s rr r/ z Process.gids s :??$$ $rt c 4 | j S )zVThe terminal associated with this process, if any,
else None.
)r terminalr s rr r1 zProcess.terminal s :&&(( (rt c 4 | j S )zcReturn the number of file descriptors opened by this
process (POSIX only).
)r num_fdsr s rr r3 zProcess.num_fds s :%%'' 'rt io_countersc 4 | j S )a
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(read_count, write_count, read_bytes, write_bytes)
namedtuple.
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amount of bytes read and written by the process.
)r r4 r s rr r4 zProcess.io_counters s :))++ +rt
ionice_getc |*|t d | j S | j || S )a Get or set process I/O niceness (priority).
On Linux *ioclass* is one of the IOPRIO_CLASS_* constants.
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