From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?IkMuIEJyw7Zja2VyIg==?= Subject: Re: KVM slow LAMP guest Date: Wed, 15 Jul 2015 22:02:22 +0200 Message-ID: <55A6BC4E.7060203@intercollect.com> References: <5582805F.8090703@logic-q.nl> <55A4C2AA.9000307@logic-q.nl> <55A4C454.2070704@intercollect.com> <55A568F1.20504@intercollect.com> <55A57C21.6080502@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit To: Paolo Bonzini , kvm list Return-path: Received: from smtp.logic-q.nl ([213.207.85.242]:35163 "EHLO smtp.logic-q.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753097AbbGOUCk (ORCPT ); Wed, 15 Jul 2015 16:02:40 -0400 In-Reply-To: <55A57C21.6080502@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 14-7-2015 23:16, Paolo Bonzini wrote: > On 14/07/2015 21:54, "Hansa" wrote: >>> [1] >>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f7819512996361280b86259222456fcf15aad926 >>> >> Sorry David. >> That is not an option. It's a production server on 2.6 kernel. 4.0 >> kernel is not in Base repos and I don't know which impact installing the >> newer kernel version will have on this server. Any other options? > You could backport the patch to the version you have. > > What OS is this? Is it RHEL/CentOS? If so, halt_poll_ns will be in 6.7 > which will be out in a few days/weeks. > > Paolo OK. As said CentOS 6.6. But where do I put this parameter? Regards, Hansa