Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756563Ab0FOCts (ORCPT ); Mon, 14 Jun 2010 22:49:48 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:52545 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753632Ab0FOCtq (ORCPT ); Mon, 14 Jun 2010 22:49:46 -0400 Message-ID: <4C16E974.8000304@cn.fujitsu.com> Date: Tue, 15 Jun 2010 10:46:12 +0800 From: Xiao Guangrong User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) MIME-Version: 1.0 To: Avi Kivity CC: Marcelo Tosatti , LKML , KVM list Subject: [PATCH 0/6] KVM: MMU: support pte prefetch when intercepted guest #PF Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 679 Lines: 21 Hi Avi, Marcelo, This patchset support pte prefetch when intercepted guest #PF, the aim is to reduce guest #PF which can be intercepted by VMM. If we meet any failure in the prefetch path, we will exit it and not try other ptes to avoid become heavy path. During my performance test, under EPT enabled case, unixbench shows the performance improved ~1.2%, user EPT disable case, unixbench shows the performance improved ~3.6% -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/