[Nottingham] What's on top?

[Roger Light]

On 17/04/06, Martin <martin at ml1.co.uk> wrote:

> What's all the "top" cpu state summary abbreviations mean?
>
> eg:
> Cpu(s):  3.9% us, 21.1% sy, 57.9% ni,  0.0% id,  0.0% wa,  1.6% hi, 15.5% si
>
> So what's the wa, hi, si mean?

us: User processes (normal programs)
sy: System processes (ie. kernel)
ni: Amount of "nice"
id: Idle
wa: Waiting for IO (disk)
hi: Harware interrupt (IRQ)
si: Software interrupt (often network traffic)

Cheers,

Roger