mackerelio / go-osstat Goto Github PK

Hi ✋
I'm using mackerel-agent(docker), and felt interface metrics are something wrong.
https://github.com/mackerelio/go-osstat/blob/master/network/network_linux.go#L17
Does mackerel-agent(docker) reads procfs on the container? But I'd like it to read the value on host machine. My mackerel-agent doesn't mount host's /proc though..

Get cpu percentage

        cpu_before, _ := cpu.Get()

	for {

		cpu_current, _ := cpu.Get()
		cpuUsage := (1.0 - float64(cpu_current.Idle-cpu_before.Idle)/float64(cpu_current.Total-cpu_before.Total)) * 100.0

		if cpuUsage != cpuUsage {
			cpuUsage = 0
		}
		
		fmt.Printf("CPU : %6.2f\n", cpuUsage)
		
		cpu_before = cpu_current
		time.Sleep(time.Second * 2)
	}

Is it possible to support collecting each CPU core usage instead of aggregated CPU usage?

I don't see anywhere in the reference about measurement unit of ReadsCompleted and WritesCompleted fields of disk stats type. Are they read/write coumy or read/witten bytes? If they counts, is there anyway to get rKB/s and wKB/s displayed by iostat?

I didn't find any reference to know the unit of memory usage. Is it in number of bytes?

When I try to build with the disk package I'm getting error:

package command-line-arguments
        imports poc/scripts/qps-scenario/scenario
        imports github.com/mackerelio/go-osstat/disk: build constraints exclude all Go files in /Users/liranb/go/pkg/mod/github.com/mackerelio/[email protected]/disk

the mem/cpu works as expected.

is there a known issue?
I tried to do

go clean -modcache

thanks

Am I able to get CPU Usage of a specific PID?