From owner-freebsd-questions@FreeBSD.ORG Mon Oct 27 20:59:37 2014 Return-Path: Delivered-To: questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 5616DB6C for ; Mon, 27 Oct 2014 20:59:37 +0000 (UTC) Received: from mail-wi0-x232.google.com (mail-wi0-x232.google.com [IPv6:2a00:1450:400c:c05::232]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E6E481FB for ; Mon, 27 Oct 2014 20:59:36 +0000 (UTC) Received: by mail-wi0-f178.google.com with SMTP id q5so7651797wiv.17 for ; Mon, 27 Oct 2014 13:59:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=vtWeG5nbsDvzBAy4E50sSJzcvLYa4us2Sa1Ppkq6BXs=; b=uatQlRLt3q73d11jfeWwr7OpBf27hcqEjApLrXdjZlgBnOD2EvcOR7kn6Piovxw+P/ 2iCSc/PpNbqcZdq6sgrLSpgkTvR5ToiSzsov0e55j3M0YnT5onglFQkLt2amLGBYHPAX FAQxRV8A4zmzws2G91hYxpzQzyg+bw+QuxNGMEipm+Hd0dEC1XJukg0NIvBgSFaX74EI PzU/Jy7dZCyud0k12Q8uUgOSgVX8JeVKYBQU69GsUX58ljv8L0M1qJ/5DllJOfzPlPUj /T6vpQ1XQy+NEBaeNg3jjLmLbuQekJY0xEDsJ5f5M/2k6RJbMuo8XL816i+IRrJGUNqa q3Pw== MIME-Version: 1.0 X-Received: by 10.180.96.10 with SMTP id do10mr23557014wib.16.1414443575167; Mon, 27 Oct 2014 13:59:35 -0700 (PDT) Received: by 10.216.116.138 with HTTP; Mon, 27 Oct 2014 13:59:35 -0700 (PDT) Date: Mon, 27 Oct 2014 20:59:35 +0000 Message-ID: Subject: High interrupt CPU in top... From: Peter Harrison To: questions@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Oct 2014 20:59:37 -0000 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? Thanks in advance. Peter Harrison.