From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752206AbeEQQwk (ORCPT ); Thu, 17 May 2018 12:52:40 -0400 Received: from smtp.nue.novell.com ([195.135.221.5]:53617 "EHLO smtp.nue.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751843AbeEQQwj (ORCPT ); Thu, 17 May 2018 12:52:39 -0400 Message-ID: <88678a872bfdd8d7477c374a2ab1ee9dd9324ec0.camel@suse.com> Subject: Re: [Xen-devel] [RFC][PATCH] KVM: APPLES can improve the performance of applications and virtualized systems by up to 49% From: Dario Faggioli To: Weiwei Jia , linux-kernel@vger.kernel.org Cc: xen-devel@lists.xenproject.org, Weiwei Jia , jianchen.shan@gmail.com, kvm@vger.kernel.org, dingxn@gmail.com Date: Thu, 17 May 2018 18:52:23 +0200 In-Reply-To: References: Organization: SUSE Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-Rln2LqRGYgWnOYaKsWpQ" X-Mailer: Evolution 3.28.2 Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-Rln2LqRGYgWnOYaKsWpQ Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sat, 2018-05-12 at 16:27 +0800, Weiwei Jia wrote: > We already have a prototype implementation based on KVM (Linux Kernel > 3.19.8). Our patch for Linux Kernel 3.19.8 and the paper describing > our idea are available in Github repository [1][2][3]. We are pleased > to revise our patch in order to merge it into Linux/KVM and XEN. We > hope that you can test and adopt our approach/techniques. We are > pleased to get some comments/suggestions on the approach and on how > the idea can be adopted/tested by Linux/KVM and XEN. Thank you. >=20 To see how this is being handled in Xen currently, I suggest you to grep for: ple_gap ple_window SECONDARY_EXEC_PAUSE_LOOP_EXITING EXIT_REASON_PAUSE_INSTRUCTION pauseloop_exits I am aware of your paper, but I haven't got to being able to read it carefully yet. I'll do that (but can't promise when). Regards, Dario --=20 <> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Software Engineer @ SUSE https://www.suse.com/ --=-Rln2LqRGYgWnOYaKsWpQ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEES5ssOj3Vhr0WPnOLFkJ4iaW4c+4FAlr9s0cACgkQFkJ4iaW4 c+4tjQ//VgJIZVqN6Z5TzS7FkTfoILjNro/0A9ht0LcIaLMgpfRVArXgiEvJhuDJ M8PVtW5A7nj/bGRH2TdLgcpszqXzpojtDJmvSbYd/Eeo+HbLk5T/hy+n94ttu2Fc 5layirUFu84vVzNLseLIuFfNWafPLx8pWCKqLdQtOJQsfi55vgGpC62+mcsjb7Op 3UcSB9PIeXbuzKDSnUe0x+nIpnOXMJ3v774ENAueHWuYZPhR+I5+/IJzfikUpOJy P8kxpJa7fAKkBbBQw3cEK//oWoJcyoI+SnoKBFgkuj1BoEdvByafFwgPu9lave0m UeudyDsA//7ua4zaQjTCjOza+pUsglHEmHOhKxZkbT7pqKkpM0c29xvneY8DKKjo n4zLIeo2r4hbwT/LqZM96QysJH6EdrhUAPoBjEpIFqwYX6rRfXsGbsXK27cZx2eX vWraLTZUplooT1Y8vNpScVUeoJhGUwfnC9V/NaG1wZpHBtpXEMwRkO7g8YDZwmCZ vgfTErv7/3L7pPTUB5ygoqrLj15HRSmMzmHhFbgNTr5XikoL6pdZOacg7V0dEvjQ IH78HfGAqurFspVbsg28I3yRgtkFD78ozpjlzJzwqvbGYypf2xgHG/nhgQO6atFA 11YyIX8RDjcwrJ9mKiUfezyl8yu9gzxFTp9iUE8vfuEGUHAUr2g= =kKIQ -----END PGP SIGNATURE----- --=-Rln2LqRGYgWnOYaKsWpQ--