gopsutil

package
Version: v0.2.1 Latest Latest
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Published: Nov 16, 2015 License: BSD-3-Clause, MIT Imports: 0 Imported by: 0

README

gopsutil: psutil for golang
==============================

.. image:: https://drone.io/github.com/shirou/gopsutil/status.png
        :target: https://drone.io/github.com/shirou/gopsutil

.. image:: https://coveralls.io/repos/shirou/gopsutil/badge.png?branch=master
        :target: https://coveralls.io/r/shirou/gopsutil?branch=master


This is a port of psutil (http://pythonhosted.org/psutil/). The challenge is porting all
psutil functions on some architectures...

.. highlights:: Package Structure Changed!

   Package (a.k.a. directory) structure has been changed!! see `issue 24 <https://github.com/shirou/gopsutil/issues/24>`_

.. highlights:: golang 1.4 will become REQUIRED!

   Since syscall package becomes frozen, we should use golang/x/sys of golang 1.4 as soon as possible.


Available Architectures
------------------------------------

- FreeBSD i386/amd64
- Linux i386/amd64/arm(raspberry pi)
- Windows/amd64
- Darwin/amd64

All works are implemented without cgo by porting c struct to golang struct.


Usage
---------

.. code:: go

   import (
   	"fmt"

   	"github.com/shirou/gopsutil/mem"
   )

   func main() {
   	v, _ := mem.VirtualMemory()

   	// almost every return value is a struct
   	fmt.Printf("Total: %v, Free:%v, UsedPercent:%f%%\n", v.Total, v.Free, v.UsedPercent)

   	// convert to JSON. String() is also implemented
   	fmt.Println(v)
   }

The output is below.

::

  Total: 3179569152, Free:284233728, UsedPercent:84.508194%
  {"total":3179569152,"available":492572672,"used":2895335424,"usedPercent":84.50819439828305, (snip)}

You can set an alternative location to /proc by setting the HOST_PROC environment variable.

Documentation
------------------------

see http://godoc.org/github.com/shirou/gopsutil


More Info
--------------------

Several methods have been added which are not present in psutil, but will provide useful information.

- host/HostInfo()  (linux)

  - Hostname
  - Uptime
  - Procs
  - OS                    (ex: "linux")
  - Platform              (ex: "ubuntu", "arch")
  - PlatformFamily        (ex: "debian")
  - PlatformVersion       (ex: "Ubuntu 13.10")
  - VirtualizationSystem  (ex: "LXC")
  - VirtualizationRole    (ex: "guest"/"host")

- cpu/CPUInfo()  (linux, freebsd)

  - CPU          (ex: 0, 1, ...)
  - VendorID     (ex: "GenuineIntel")
  - Family
  - Model
  - Stepping
  - PhysicalID
  - CoreID
  - Cores        (ex: 2)
  - ModelName    (ex: "Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz")
  - Mhz
  - CacheSize
  - Flags        (ex: "fpu vme de pse tsc msr pae mce cx8 ...")

- load/LoadAvg()  (linux, freebsd)

  - Load1
  - Load5
  - Load15

- docker/GetDockerIDList() (linux only)

  - container id list ([]string)

- docker/CgroupCPU() (linux only)

  - user
  - system

- docker/CgroupMem() (linux only)

  - various status

Some codes are ported from Ohai. many thanks.


Current Status
------------------

- x: work
- b: almost work but something broken

================= ====== ======= ====== =======
name              Linux  FreeBSD MacOSX Windows
cpu_times            x      x      x       x
cpu_count            x      x      x       x
cpu_percent          x      x      x       x
cpu_times_percent    x      x      x       x
virtual_memory       x      x      x       x
swap_memory          x      x      x
disk_partitions      x      x      x       x
disk_io_counters     x      x
disk_usage           x      x      x       x
net_io_counters      x      x      b       x
boot_time            x      x      x       x
users                x      x      x       x
pids                 x      x      x       x
pid_exists           x      x      x       x
net_connections      x             x
net_if_addrs
net_if_stats
================= ====== ======= ====== =======

Process class
^^^^^^^^^^^^^^^

================ ===== ======= ====== =======
name             Linux FreeBSD MacOSX Windows
pid                 x     x      x       x
ppid                x     x      x       x
name                x     x      x       x
cmdline             x            x       x
create_time         x
status              x     x      x
cwd                 x
exe                 x     x              x
uids                x     x      x
gids                x     x      x
terminal            x     x      x
io_counters         x
nice                x            x       x
num_fds             x
num_ctx_switches    x
num_threads         x     x      x       x
cpu_times           x
memory_info         x     x      x
memory_info_ex      x
memory_maps         x
open_files          x
send_signal         x     x      x
suspend             x     x      x
resume              x     x      x
terminate           x     x      x
kill                x     x      x
username            x
ionice
rlimit
num_handlres
threads
cpu_percent         x            x
cpu_affinity
memory_percent
parent              x            x
children
connections         x            x
is_running
================ ===== ======= ====== =======

Original Metrics
^^^^^^^^^^^^^^^^^^^
================== ===== ======= ====== =======
item               Linux FreeBSD MacOSX Windows
**HostInfo**
hostname              x     x      x       x
  uptime              x     x      x
  proces              x     x
  os                  x     x      x       x
  platform            x     x      x
  platformfamiliy     x     x      x
  virtualization      x
**CPU**
  VendorID            x     x      x       x
  Family              x     x      x       x
  Model               x     x      x       x
  Stepping            x     x      x       x
  PhysicalID          x
  CoreID              x
  Cores               x                    x
  ModelName           x     x      x       x
**LoadAvg**
  Load1               x     x      x
  Load5               x     x      x
  Load15              x     x      x
**GetDockerID**
  container id        x     no    no      no
**CgroupsCPU**
  user                x     no    no      no
  system              x     no    no      no
**CgroupsMem**
  various             x     no    no      no
================== ===== ======= ====== =======

- future work

  - process_iter
  - wait_procs
  - Process class

    - as_dict
    - wait


License
------------

New BSD License (same as psutil)


Related Works
-----------------------

I have been influenced by the following great works:

- psutil: http://pythonhosted.org/psutil/
- dstat: https://github.com/dagwieers/dstat
- gosigar: https://github.com/cloudfoundry/gosigar/
- goprocinfo: https://github.com/c9s/goprocinfo
- go-ps: https://github.com/mitchellh/go-ps
- ohai: https://github.com/opscode/ohai/
- bosun: https://github.com/bosun-monitor/bosun/tree/master/cmd/scollector/collectors
- mackerel: https://github.com/mackerelio/mackerel-agent/tree/master/metrics

How to Contribute
---------------------------

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

My English is terrible, so documentation or correcting comments are also
welcome.

Documentation

The Go Gopher

There is no documentation for this package.

Source Files

Directories

Path Synopsis
gopsutil is a port of psutil(http://pythonhosted.org/psutil/).
gopsutil is a port of psutil(http://pythonhosted.org/psutil/).
Package binary implements simple translation between numbers and byte sequences and encoding and decoding of varints.
Package binary implements simple translation between numbers and byte sequences and encoding and decoding of varints.
Package binary implements simple translation between numbers and byte sequences and encoding and decoding of varints.
Package binary implements simple translation between numbers and byte sequences and encoding and decoding of varints.

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