Files
dolt/vendor/github.com/shirou/gopsutil
Ben Kalman 064c398dec Add perf test suite infrastructure, and a perf test for csv-import (#2384)
You can run these yourself using the -perf flag, e.g.

> noms serve &
> go test -v -perf http://localhost:8000 ./samples/go/csv/csv-import
> noms ds http://localhost:8000

Though you'll need to go-get github.com/attic-labs/testdata.

Note that all of this only records test results, it doesn't have any
concept of failing perf (unless test assertsions themselves fail). It
will be the job of some other Noms client (work in progress) to do that.

I will be setting this up to run continuously momentarily.
2016-08-18 15:49:21 -07:00
..

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

.. image:: https://circleci.com/gh/shirou/gopsutil.svg?&style=shield
        :target: https://circleci.com/gh/shirou/gopsutil

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

.. image:: https://godoc.org/github.com/shirou/gopsutil?status.svg
        :target: http://godoc.org/github.com/shirou/gopsutil

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


.. highlights:: Breaking Changes!

   Breaking changes is introduced at v2. See `issue 174 <https://github.com/shirou/gopsutil/issues/174>`_ .


Migrating to v2
-------------------------

On gopsutil itself, `v2migration.sh <https://github.com/shirou/gopsutil/blob/v2/v2migration.sh>`_ is used for migration. It can not be commonly used, but it may help you with migration.


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
---------

Note: gopsutil v2 breaks compatibility. If you want to stay with compatibility, please use v1 branch and vendoring.

.. code:: go

   package main

   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 :code:`/proc` by setting the :code:`HOST_PROC` environment variable.

You can set an alternative location to :code:`/sys` by setting the :code:`HOST_SYS` environment variable.

You can set an alternative location to :code:`/etc` by setting the :code:`HOST_ETC` environment variable.

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

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

Requirements
-----------------

- go1.5 or above is required.


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

- net_protocols (linux only)

  - system wide stats on network protocols (i.e IP, TCP, UDP, etc.)
  - sourced from /proc/net/snmp

- iptables nf_conntrack (linux only)

  - system wide stats on netfilter conntrack module
  - sourced from /proc/sys/net/netfilter/nf_conntrack_count

Some codes are ported from Ohai. many thanks.


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

- x: work
- b: almost works, but something is 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_protocols        x
net_if_addrs
net_if_stats
netfilter_conntrack  x
================= ====== ======= ====== =======

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     x              x
nice                x     x      x       x
num_fds             x
num_ctx_switches    x
num_threads         x     x      x       x
cpu_times           x
memory_info         x     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            x     x      x
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
  platformfamily      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.