Need help with go-osstat?
Click the “chat” button below for chat support from the developer who created it, or find similar developers for support.

About the developer

mackerelio
178 Stars 30 Forks Apache License 2.0 220 Commits 0 Opened issues

Description

OS system statistics library for Go

Services available

!
?

Need anything else?

Contributors list

OS system statistics library for Go

This is a library to get system metrics like cpu load and memory usage. The library is created for mackerel-agent.

GoDev Build Status

Example

package main

import ( "fmt" "os"

"github.com/mackerelio/go-osstat/memory"

)

func main() { memory, err := memory.Get() if err != nil { fmt.Fprintf(os.Stderr, "%s\n", err) return } fmt.Printf("memory total: %d bytes\n", memory.Total) fmt.Printf("memory used: %d bytes\n", memory.Used) fmt.Printf("memory cached: %d bytes\n", memory.Cached) fmt.Printf("memory free: %d bytes\n", memory.Free) }

Supported OS

||loadavg|uptime|cpu|memory|network|disk i/o| |:--:|:--:|:--:|:--:|:--:|:--:|:--:| |Linux|yes|yes|yes|yes|yes|yes| |Darwin|yes|yes|*1|yes|yes|no| |FreeBSD|yes|yes|no|yes|yes|no| |NetBSD|yes|yes|no|no|yes|no| |OpenBSD|yes|yes|no|no|no|no| |Windows|no|yes|no|yes|no|no|

*1: unavailable without cgo

Note for counter values

This library returns the counter value for cpu, network and disk I/O statistics by design. To get the cpu usage in percent, network traffic in kB/s or disk IOPS, sleep for a while and calculate the difference.

package main

import ( "fmt" "os" "time"

"github.com/mackerelio/go-osstat/cpu"

)

func main() { before, err := cpu.Get() if err != nil { fmt.Fprintf(os.Stderr, "%s\n", err) return } time.Sleep(time.Duration(1) * time.Second) after, err := cpu.Get() if err != nil { fmt.Fprintf(os.Stderr, "%s\n", err) return } total := float64(after.Total - before.Total) fmt.Printf("cpu user: %f %%\n", float64(after.User-before.User)/total100) fmt.Printf("cpu system: %f %%\n", float64(after.System-before.System)/total100) fmt.Printf("cpu idle: %f %%\n", float64(after.Idle-before.Idle)/total*100) }

LICENSE

Copyright 2017-2019 Hatena Co., Ltd.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

We use cookies. If you continue to browse the site, you agree to the use of cookies. For more information on our use of cookies please see our Privacy Policy.