dsqpx86002
2015-08-07 14:12
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Golang OS / EXEC,实时内存使用情况

I'm using Linux, go, and os/exec to run some commands. I want to know a process' realtime memory usage. That means that I can ask for memory usage anytime after I start the process, not just after it ran.

(That's why the answer in Measuring memory usage of executable run using golang is not an option for me)

For example:

cmd := exec.Command(...)
cmd.Start()
//...
if cmd.Memory()>50 { 
    fmt.Println("Oh my god, this process is hungry for memory!")
}

I don't need very precise value, but it would be great if it's error range is lower than, say, 10 megabytes.

Is there a go way to do that or I need some kind of command line trick?

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