Date: Mon, 27 Oct 2014 16:41:39 -0500 From: Adam Vande More <amvandemore@gmail.com> To: Peter Harrison <four.harrisons@googlemail.com> Cc: FreeBSD Questions <questions@freebsd.org> Subject: Re: High interrupt CPU in top... Message-ID: <CA%2BtpaK1jJPTi_UoOU8GY3z1%2BMp400=djrr_t7mxvzjyU%2BGPnkQ@mail.gmail.com> In-Reply-To: <CAA3eX7YS6rPrHKot5U%2BUp5jE-xfU6WVHK-G22jjkuuACMSZdbw@mail.gmail.com> References: <CAA3eX7a-u=FDTyo1Hp-uw=T4h9v5Am3ZHw9-XGCD_%2B9cZDP7bg@mail.gmail.com> <CA%2BtpaK3CobStcGzwbcs6LkYCotGVhqVhHwBWFNbLiihOf3e4NQ@mail.gmail.com> <CAA3eX7YS6rPrHKot5U%2BUp5jE-xfU6WVHK-G22jjkuuACMSZdbw@mail.gmail.com>
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On Mon, Oct 27, 2014 at 4:37 PM, Peter Harrison < four.harrisons@googlemail.com> wrote: > > > 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. > You can try asking on the usb list. It's not normal, probably the driver isn't supported fully. Might be a trivial change to get to work. -- Adam
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