From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: KVM slow LAMP guest Date: Thu, 16 Jul 2015 13:27:30 +0200 Message-ID: <55A79522.5050805@redhat.com> References: <5582805F.8090703@logic-q.nl> <55A4C2AA.9000307@logic-q.nl> <55A4C454.2070704@intercollect.com> <55A568F1.20504@intercollect.com> <55A57C21.6080502@redhat.com> <55A6BC4E.7060203@intercollect.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE To: "=?UTF-8?Q?C._Br=c3=b6cker?=" , kvm list Return-path: Received: from mx1.redhat.com ([209.132.183.28]:41522 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755113AbbGPL1f (ORCPT ); Thu, 16 Jul 2015 07:27:35 -0400 In-Reply-To: <55A6BC4E.7060203@intercollect.com> Sender: kvm-owner@vger.kernel.org List-ID: On 15/07/2015 22:02, "C. Br=C3=B6cker" wrote: >> >> 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? You can add "kvm.halt_poll_ns=3D500000" to the kernel command line. If you have the parameter, you have the /sys/module/kvm/parameters/halt_poll_ns file. Paolo > Regards, Hansa