From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [PATCH V2 RFC 3/3] kvm: Check system load and handle different commit cases accordingly Date: Tue, 30 Oct 2012 09:14:18 +0100 Message-ID: <1351584858.4047.32.camel@twins> References: <20121029140621.15448.92083.sendpatchset@codeblue> <20121029140717.15448.83182.sendpatchset@codeblue> <1351533280.24721.46.camel@twins> <508F6C60.1050202@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Cc: "H. Peter Anvin" , Avi Kivity , Ingo Molnar , Marcelo Tosatti , Rik van Riel , Srikar , "Nikunj A. Dadhania" , KVM , Jiannan Ouyang , Chegu Vinod , "Andrew M. Theurer" , LKML , Srivatsa Vaddagiri , Gleb Natapov , Andrew Jones To: Raghavendra K T Return-path: Received: from casper.infradead.org ([85.118.1.10]:52194 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751591Ab2J3IOn convert rfc822-to-8bit (ORCPT ); Tue, 30 Oct 2012 04:14:43 -0400 In-Reply-To: <508F6C60.1050202@linux.vnet.ibm.com> Sender: kvm-owner@vger.kernel.org List-ID: On Tue, 2012-10-30 at 11:27 +0530, Raghavendra K T wrote: > Okay, now IIUC, usage of *any* global measure is bad? Yep, people like to carve up their machines, esp. now that they're somewhat bigger than they used to be. This can result in very asymmetric loads, no global measure can ever deal with that.