gopsutil: psutil for golang

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

Available archtectures

• FreeBSD/amd64
• Linux/amd64
• Windows/amd64

(I do not have a darwin machine)

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

Usage

import (
    "github.com/shirou/gopsutil"
    "fmt"
    "encoding/json"
)

func main(){
    v, _ := gopsutil.Virtual_memory()

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

    // convert to JSON
    d, _ := json.Marshal(v)
    fmt.Printf("%s\n", d)
}

The output is below.

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

Document

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

Current Status

• done
  • cpu_times (linux, freebsd)
  • cpu_count (linux, freebsd, windows)
  • virtual_memory (linux, windows)
  • swap_memory (linux)
  • disk_partitions (linux, freebsd, windows)
  • disk_usage (linux, freebsd, windows)
  • net_io_counters (linux)
  • boot_time (linux, freebsd, windows(but little broken))
  • users (linux, freebsd)
  • pids (linux, freebsd)
  • pid_exists (linux, freebsd)
  • Process class
    • Pid (linux, freebsd, windows)
    • Ppid (linux, windows)
    • Name (linux)
    • Cmdline (linux)
    • Create_time (linux)
    • Status (linux)
    • Cwd (linux)
    • Exe (linux, freebsd, windows)
    • Uids (linux)
    • Gids (linux)
    • Terminal (linux)
    • Nice (linux)
    • Num_fds (linux)
    • Num_threads (linux, windows)
    • Cpu_times (linux)
    • Memory_info (linux)
    • Memory_info_ex (linux)
    • Memory_maps() (linux)
    • Open_files (linux)
    • Send_signal (linux, freebsd)
    • Suspend (linux, freebsd)
    • Resume (linux, freebsd)
    • Terminate (linux, freebsd)
    • Kill (linux, freebsd)
• not yet
  • cpu_percent
  • cpu_times_percent
  • disk_io_counters
  • net_connections
  • Process class
    • username
    • ionice
    • rlimit
    • io_counters
    • num_ctx_switches
    • num_handlers
    • threads
    • cpu_percent
    • cpu_affinity
    • memory_percent
    • children
    • connections
    • is_running
• future work
  • process_iter
  • wait_procs
  • Process class
    • parent (use ppid instead)
    • as_dict
    • wait

License

New BSD License (same as psutil)

Related works

So many thanks!

• psutil: http://pythonhosted.org/psutil/
• dstat: https://github.com/dagwieers/dstat
• gosiger: https://github.com/cloudfoundry/gosigar/
• goprocinfo: https://github.com/c9s/goprocinfo
• go-ps: https://github.com/mitchellh/go-ps