NodeJS - Cpu Usage

[Marcel Araujo]

Hy guys

How can I use the module OS return of method cpus() to transform in
percentage? They're in milliseconds! Some one knows that?

Thanks

[Ben Noordhuis]

On Fri, Apr 27, 2012 at 19:29, Marcel Araujo <cece...@gmail.com> wrote:
> How can I use the module OS return of method cpus() to transform in
> percentage? They're in milliseconds! Some one knows that?

Percentage of what? os.uptime() * 1000?

[Marcel Araujo]

Percentage of cpu.sys, cpu.user and cpu.idle!

2012/4/27 Ben Noordhuis <in...@bnoordhuis.nl>

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[Marcel Araujo]

I got this when I use module OS and method cpus()

[ { model: 'Intel(R) Core(TM)2 Duo CPU     E7500  @ 2.93GHz',
    speed: 2938,
    times: { user: 383080, nice: 0, sys: 705670, idle: 158793840, irq: 0 } },
  { model: 'Intel(R) Core(TM)2 Duo CPU     E7500  @ 2.93GHz',
    speed: 2938,
    times: { user: 225890, nice: 0, sys: 441210, idle: 159216960, irq: 0 } } ]

I wanna transform times.user, times.sys and times.idle in percentage value!

2012/4/27 Marcel Araujo <cece...@gmail.com>

[Mark Hahn]

If idle means all the time your process was not active then just add the three together and use them as the base.

If not, then record the time when the process starts and then divide reported times by time since process started.  This should work no matter what idle means.

[Mark Hahn]

Actually, I just discovered os.uptime().  Use that as the base.

[Marcel Araujo]

Thanks and I found this that explains the idea

http://stackoverflow.com/questions/9565912/convert-the-output-of-os-cpus-in-node-js-to-percentage

2012/4/27 Mark Hahn <ma...@hahnca.com>

[Marcel Araujo]

No, this doesn't work for me. Idle is always 100%.

I'll try on Windows to sure that is corrected.

2012/4/27 Marcel Araujo <cece...@gmail.com>