   // 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.

You can set an alternative location to :code:/run by setting the :code:HOST_RUN environment variable.

You can set an alternative location to :code:/dev by setting the :code:HOST_DEV 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")
IOCounters
- Label (linux only) The registered device mapper name <https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-block-dm>_
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 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 page_faults x ================ ===== ======= ======= ====== =======

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 ================== ===== ======= ======= ====== ======= =======