Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763192AbXKQTKs (ORCPT ); Sat, 17 Nov 2007 14:10:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756107AbXKQTKk (ORCPT ); Sat, 17 Nov 2007 14:10:40 -0500 Received: from rn-out-0910.google.com ([64.233.170.189]:17697 "EHLO rn-out-0102.google.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755424AbXKQTKj (ORCPT ); Sat, 17 Nov 2007 14:10:39 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=f6i+aQlhrBwALmeUuR1xqspGC+RlXErn5GlX1ADctZdaBRrLcx8JXdXPdqcp9d3L3ceLF0pXhqSg0dWTxWTJ1Y5HDm/XS0+V/qZgMxcI70d2Q0/koJNn6IEVuO4znxQyt+MKBwzQCIGaUeuCvQfu2aEiP8V+bP2ZxlJxn2KR/Dc= Message-ID: Date: Sat, 17 Nov 2007 20:10:35 +0100 From: "Dmitry Adamushko" To: "Micah Dowty" Subject: Re: High priority tasks break SMP balancer? Cc: "Ingo Molnar" , "Christoph Lameter" , "Kyle Moffett" , "Cyrus Massoumi" , "LKML Kernel" , "Andrew Morton" , "Mike Galbraith" , "Paul Menage" , "Peter Williams" In-Reply-To: <20071117010352.GA13666@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20071115213510.GA16079@vmware.com> <20071116024408.GA20322@vmware.com> <20071116060700.GD16273@elte.hu> <20071116221404.GC31527@vmware.com> <20071117010352.GA13666@vmware.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 704 Lines: 31 Micah, ok, would it be possible to get "cat /proc/schedstat" output at the moment when you observe the 'problem'? So we could try to analyze behavior of the load balancer (yeah, we should have probably started with this step) something like this: (the problem appears) # cat /proc/schedstat ... wait either a few seconds or until the problem disappears (whatever comes first) # cat /proc/schedstat TIA, > > --Micah > -- Best regards, Dmitry Adamushko - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/