Date: Mon, 27 Oct 2014 21:37:47 +0000 From: Peter Harrison <four.harrisons@googlemail.com> To: Adam Vande More <amvandemore@gmail.com> Cc: FreeBSD Questions <questions@freebsd.org> Subject: Re: High interrupt CPU in top... Message-ID: <CAA3eX7YS6rPrHKot5U%2BUp5jE-xfU6WVHK-G22jjkuuACMSZdbw@mail.gmail.com> In-Reply-To: <CA%2BtpaK3CobStcGzwbcs6LkYCotGVhqVhHwBWFNbLiihOf3e4NQ@mail.gmail.com> References: <CAA3eX7a-u=FDTyo1Hp-uw=T4h9v5Am3ZHw9-XGCD_%2B9cZDP7bg@mail.gmail.com> <CA%2BtpaK3CobStcGzwbcs6LkYCotGVhqVhHwBWFNbLiihOf3e4NQ@mail.gmail.com>
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On 27 October 2014 21:31, Adam Vande More <amvandemore@gmail.com> wrote: > On Mon, Oct 27, 2014 at 3:59 PM, Peter Harrison < > four.harrisons@googlemail.com> wrote: > >> Can anyone help me diagnose this please? I'm on 10.0-RELEASE on a Thinkpad >> X200s. In top I see around 30% CPU listed as 'interrupt' even when I'm >> only >> running Xorg (with Xfce as the window manager) with no other applications >> open: >> >> last pid: 1946; load averages: 1.09, 1.30, 1.24 >> up 0+00:59:59 21:56:20 >> 54 processes: 1 running, 53 sleeping >> CPU: 0.4% user, 0.0% nice, 0.2% system, 32.8% interrupt, 66.6% idle >> Mem: 188M Active, 282M Inact, 283M Wired, 22M Cache, 206M Buf, 1127M Free >> Swap: 4096M Total, 4096M Free >> >> PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU >> COMMAND >> 1362 root 1 20 0 150M 25596K select 1 1:18 0.10% Xorg >> 1613 peter 4 32 0 260M 21700K select 1 0:02 0.10% >> xfce4-terminal >> 1521 peter 1 20 0 159M 17652K select 1 0:10 0.00% >> xfwm4 >> 1539 peter 1 20 0 152M 13704K select 1 0:08 0.00% >> wrapper >> 1524 peter 3 20 0 278M 24172K select 1 0:05 0.00% >> xfce4-panel >> 1444 haldaemon 2 28 0 60428K 6436K select 1 0:01 0.00% hald >> 1511 peter 2 39 0 163M 14756K select 1 0:01 0.00% >> xfce4-session >> 1544 root 2 20 0 54908K 5904K select 1 0:01 0.00% >> upowerd >> 1526 peter 2 20 0 247M 16108K kqread 0 0:01 0.00% >> xfdesktop >> 1540 peter 1 20 0 156M 15480K select 1 0:01 0.00% >> wrapper >> 1279 messagebus 1 20 0 17044K 3144K select 0 0:00 0.00% >> dbus-daemon >> >> How do I diagnose what's using my processor? >> > > vmstat -i > > -- > Adam > Cheers Adam. That gives me: [peter 181]> vmstat -i interrupt total rate irq1: atkbd0 11870 1 irq9: acpi0 27499 4 irq12: psm0 234774 39 irq16: uhci3 1250818252 210292 irq20: hpet0 uhci0 6977995 1173 irq21: uhci1 11 0 irq23: ehci0 2 0 irq257: hdac0 16380 2 irq258: iwn0 559063 93 irq259: ahci0 103732 17 irq260: vgapci0 311808 52 Total 1259061386 211678 Any idea why the uhci is causing such a high interrupt rate? Is that normal? Sorry for being so noob. Peter Harrison.
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