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The order of init function execution is dependant on the order that the source files are passed to the compiler. This causes issues when building under other build systems, such as bazel or buck, as they are not guarenteed to maintain the same file order as the default go tool.
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 (https://github.com/giampaolo/psutil). The challenge is porting all
psutil functions on some architectures.
Breaking Changes! golang 1.8 is required
-------------------------------------------
After v2.17.04, golang 1.8 is required to build.
Tag semantics
-------------------------
gopsutil tag policy is almost same as Semantic Versioning, but automatically increase like Ubuntu versioning.
for example, `v2.17.04` means
- v2: major version
- 17: release year, 2017
- 04: release month
gopsutil aims to keep backwards-compatiblity until major version change.
Taged at every end of month, but there are only a few commits, it can be skipped.
Available Architectures
------------------------------------
- FreeBSD i386/amd64/arm
- Linux i386/amd64/arm(raspberry pi)
- Windows/amd64
- Darwin i386/amd64
- OpenBSD amd64 (Thank you @mpfz0r!)
- Solaris amd64 (developed and tested on SmartOS/Illumos, Thank you @jen20!)
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.
You can set an alternative location to :code:`/var` by setting the :code:`HOST_VAR` environment variable.
Documentation
------------------------
see http://godoc.org/github.com/shirou/gopsutil
Requirements
-----------------
- go1.7 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 ...")
- Microcode
- 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 OpenBSD MacOSX Windows Solaris
cpu_times x x x x x
cpu_count x x x x x
cpu_percent x x x x x
cpu_times_percent x x x x x
virtual_memory x x x x x b
swap_memory x x x x
disk_partitions x x x x x
disk_io_counters x x x
disk_usage x x x x x
net_io_counters x x x b x
boot_time x x x x x
users x x x x x
pids x x x x x
pid_exists x x x x x
net_connections x x x
net_protocols x
net_if_addrs
net_if_stats
netfilter_conntrack x
=================== ====== ======= ======= ====== =======
Process class
^^^^^^^^^^^^^^^
================ ===== ======= ======= ====== =======
name Linux FreeBSD OpenBSD MacOSX Windows
pid x x x x x
ppid x x x x x
name x x x x x
cmdline x x x x
create_time x x
status x x x x
cwd x
exe x x x x
uids x x x x
gids x x x x
terminal x x x x
io_counters x x x x
nice x x x x x
num_fds x
num_ctx_switches x
num_threads x x x x x
cpu_times x x
memory_info x x x x x
memory_info_ex x
memory_maps x
open_files x
send_signal x x x x
suspend x x x x
resume x x x x
terminate x x x x x
kill x x x x
username x x x x x
ionice
rlimit x
num_handlers
threads x
cpu_percent x x x
cpu_affinity
memory_percent
parent x x x x
children x x x x x
connections x x x
is_running
================ ===== ======= ======= ====== =======
Original Metrics
^^^^^^^^^^^^^^^^^^^
================== ===== ======= ======= ====== ======= =======
item Linux FreeBSD OpenBSD MacOSX Windows Solaris
**HostInfo**
hostname x x x x x x
uptime x x x x x
proces x x x x
os x x x x x x
platform x x x x x
platformfamily x x x x x
virtualization x
**CPU**
VendorID x x x x x x
Family x x x x x x
Model x x x x x x
Stepping x x x x x x
PhysicalID x x
CoreID x x
Cores x x x
ModelName x x x x x x
Microcode x x
**LoadAvg**
Load1 x x x x
Load5 x x x x
Load15 x x x x
**GetDockerID**
container id x no no no no
**CgroupsCPU**
user x no no no no
system x no no no no
**CgroupsMem**
various x no 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: https://github.com/giampaolo/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.