From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 196409] kvm_amd nested pagetable gpu passthrough performance oddities Date: Tue, 01 Aug 2017 05:10:24 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT To: kvm@kernel.org Return-path: Received: from mail.wl.linuxfoundation.org ([198.145.29.98]:38992 "EHLO mail.wl.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751085AbdHAFKi (ORCPT ); Tue, 1 Aug 2017 01:10:38 -0400 Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DBE4828641 for ; Tue, 1 Aug 2017 05:10:37 +0000 (UTC) In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: https://bugzilla.kernel.org/show_bug.cgi?id=196409 mfadom99@hotmail.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mfadom99@hotmail.com --- Comment #7 from mfadom99@hotmail.com --- Same issue with kernel 4.10 - 4.12 here. CPU - AMD Ryzen 7 1700 MB - Asus Prime x370 Pro Host GPU - NVidia GTX 750ti VFIO GPU - AMD Radeon RX480 Host OS - Manjaro 17.2 Guest OS - Windows 10 With npt=1, everything is fast, except GPU fps is 10-15 in Skyrim with npt=0, everything is slow, GPU fps is ~30 in Skyrim -- You are receiving this mail because: You are watching the assignee of the bug.