From owner-freebsd-performance@FreeBSD.ORG Tue Aug 23 02:24:31 2005 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EF07616A41F for ; Tue, 23 Aug 2005 02:24:30 +0000 (GMT) (envelope-from david.mao@thomson.net) Received: from dmzraw4.extranet.tce.com (dmzraw4.extranet.tce.com [157.254.234.139]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4054643D48 for ; Tue, 23 Aug 2005 02:24:30 +0000 (GMT) (envelope-from david.mao@thomson.net) Received: from indyvss2.am.thmulti.com (unknown [157.254.92.61]) by dmzraw4.extranet.tce.com (Postfix) with ESMTP id 86A689CE for ; Tue, 23 Aug 2005 02:24:29 +0000 (GMT) Received: from localhost (localhost [127.0.0.1]) by indyvss2.am.thmulti.com (Postfix) with ESMTP id 7562B16F67 for ; Tue, 23 Aug 2005 02:24:29 +0000 (GMT) Received: from indyvss2.am.thmulti.com ([127.0.0.1]) by localhost (indyvss2 [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 21415-01-10 for ; Tue, 23 Aug 2005 02:24:26 +0000 (GMT) Received: from indysmailcs01.am.thmulti.com (indysmailcs01.am.thmulti.com [157.254.96.5]) by indyvss2.am.thmulti.com (Postfix) with ESMTP id 40C6516F66 for ; Tue, 23 Aug 2005 02:24:26 +0000 (GMT) Received: from indysmailbh01.am.thmulti.com ([157.254.96.4]) by indysmailcs01.am.thmulti.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 22 Aug 2005 21:24:26 -0500 Received: from tahkexch2k.ap.thmulti.com ([141.11.13.12]) by indysmailbh01.am.thmulti.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 22 Aug 2005 21:24:26 -0500 Received: from tahksmail01.ap.thmulti.com ([141.11.13.38]) by tahkexch2k.ap.thmulti.com with Microsoft SMTPSVC(5.0.2195.6713); Tue, 23 Aug 2005 10:24:02 +0800 Received: from bjngsmail01.ap.thmulti.com ([10.11.70.35]) by tahksmail01.ap.thmulti.com with Microsoft SMTPSVC(5.0.2195.6713); Tue, 23 Aug 2005 10:24:01 +0800 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable X-MimeOLE: Produced By Microsoft Exchange V6.0.6603.0 Date: Tue, 23 Aug 2005 10:20:27 +0800 Message-ID: <31021C278A7A6B4AB95E9A085C3552180FF765@bjngsmail01> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: polling in 4.11 vs 5.4 Thread-Index: AcWnh2CfitWU/R+xStKqCTLmU1TG2QAAa7pQ From: "Mao Shou Yan" To: X-OriginalArrivalTime: 23 Aug 2005 02:24:01.0802 (UTC) FILETIME=[B9B656A0:01C5A789] X-Virus-Scanned: amavisd-new at thomson.net Subject: RE: polling in 4.11 vs 5.4 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Aug 2005 02:24:31 -0000 BTW, I found that context switch in 5.4 is much higher than 5.4 while = enabling polling. (Using systat -vmstat 1) -----Original Message----- From: owner-freebsd-performance@freebsd.org = [mailto:owner-freebsd-performance@freebsd.org] On Behalf Of Mao Shou Yan Sent: 2005=C4=EA8=D4=C223=C8=D5 10:07 To: freebsd-performance@freebsd.org Subject: polling in 4.11 vs 5.4 Hi, everybody, I hope this is the right place that I post to! When I enabled polling in 5.4 and 4.11, I found that CPU load in 5.4 is much higher than 4.11. For example, suppose HZ is 5000, in 5.4 the idle CPU is about 87%, but in 4.11, the idle CPU is about 99.9%. Is this right? Or the statistic is wrong in 4.11? BTW, ACPI is disabled under 5.4. I'm looking forward your reply. Any response is welcome! =20 David.Mao _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to = "freebsd-performance-unsubscribe@freebsd.org"