From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Priebe - Profihost AG Subject: Re: less cores more iops / speed Date: Fri, 09 Nov 2012 09:43:40 +0100 Message-ID: <509CC23C.6060104@profihost.ag> References: <021c4865-424b-41bd-b81d-62b6771dabc3@mailpro> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.profihost.ag ([85.158.179.208]:55599 "EHLO mail.profihost.ag" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751133Ab2KIInv (ORCPT ); Fri, 9 Nov 2012 03:43:51 -0500 In-Reply-To: <021c4865-424b-41bd-b81d-62b6771dabc3@mailpro> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Alexandre DERUMIER Cc: Joao Eduardo Luis , ceph-devel@vger.kernel.org, Mark Nelson , "pve-devel@pve.proxmox.com" Am 08.11.2012 16:53, schrieb Alexandre DERUMIER: >>> So it is a problem of KVM which let's the processes jump between cores a >>> lot. > > maybe numad from redhat can help ? > http://fedoraproject.org/wiki/Features/numad > > It's try to keep process on same numa node and I think it's also doing some dynamic pinning. numad doesn't help but libvirt seems to support pinning of kvm instances. Maybe pve should support pinning too? Greets Stefan