Re: What's that displayed on 'top'?

From: Tshepang Lekhonkhobe (tshepang_at_gmail.com)
Date: 11/30/05

  • Next message: marc: "Re: Filesharing on small LAN" 
    Date: Wed, 30 Nov 2005 17:19:55 +0200
To: michael <linux@networkingnewsletter.org.uk>

    On 11/30/05, michael <linux@networkingnewsletter.org.uk> wrote:
    > > On 11/28/05, Henrik Morsing <henrik@morsing.cc> 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
    > >> like
    > >> 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

    of course...

  • Next message: marc: "Re: Filesharing on small LAN"