Re: What's that displayed on 'top'?
> On 11/28/05, Henrik Morsing <email@example.com> wrote:
>> On Mon, 28 Nov 2005, Tshepang Lekhonkhobe wrote:
>> > Hello,
>> > On the CPU row of top, there's various stuff displayed:
>> > 'us' (which I assume is CPU cycles consumed by processes owned by the
>> > user running top), 'sy' (which I assume is those owned by root), 'id'
>> > (which I assume means idle), and there is 'wa', 'hi', 'si' whose
>> > meaning I don't know.
>> > I checked on the manpage without success... Could anyone tell me what
>> > these last 3 (wa, hi, si) mean.
>> us is 'user' meaning any process regardless of owner running in user
>> space. User space is unpriviledged processes without hardware access
>> the kernel.
>> sy is system. Regardless of user it's CPU cycles used by threads inside
>> the kernel e.g. working for processes asking for hardware access.
>> id is idle
>> wa is wait which is CPU cycles wasted on waiting for hardware especially
>> disk, access.
>> hi I've never seen
>> si must be swap in? Meaning pages swapped in from swap space.
> That's a handful. Thanks... (although we do have 'soft interrupt' and
> 'hi interrupt' as Michael later mentioned).
hopefully i said 'hard interruprt' for hi