From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759931AbYAFOrT (ORCPT ); Sun, 6 Jan 2008 09:47:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758474AbYAFOkJ (ORCPT ); Sun, 6 Jan 2008 09:40:09 -0500 Received: from il.qumranet.com ([82.166.9.18]:46650 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756047AbYAFOjs (ORCPT ); Sun, 6 Jan 2008 09:39:48 -0500 From: Avi Kivity To: linux-kernel@vger.kernel.org, kvm-devel@lists.sourceforge.net Subject: [PATCH 22/33] KVM: MMU: Add cache miss statistic Date: Sun, 6 Jan 2008 16:39:28 +0200 Message-Id: <1199630379-28638-23-git-send-email-avi@qumranet.com> X-Mailer: git-send-email 1.5.3.7 In-Reply-To: <1199630379-28638-1-git-send-email-avi@qumranet.com> References: <1199630379-28638-1-git-send-email-avi@qumranet.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 1 + arch/x86/kvm/x86.c | 1 + include/asm-x86/kvm_host.h | 1 + 3 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 9a57e1a..8f12ec5 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -715,6 +715,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, pgprintk("%s: found\n", __FUNCTION__); return sp; } + ++vcpu->kvm->stat.mmu_cache_miss; sp = kvm_mmu_alloc_page(vcpu, parent_pte); if (!sp) return sp; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 733bff6..fa9e42c 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -73,6 +73,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { { "mmu_pde_zapped", VM_STAT(mmu_pde_zapped) }, { "mmu_flooded", VM_STAT(mmu_flooded) }, { "mmu_recycled", VM_STAT(mmu_recycled) }, + { "mmu_cache_miss", VM_STAT(mmu_cache_miss) }, { "remote_tlb_flush", VM_STAT(remote_tlb_flush) }, { NULL } }; diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h index 28940e1..ced1beb 100644 --- a/include/asm-x86/kvm_host.h +++ b/include/asm-x86/kvm_host.h @@ -289,6 +289,7 @@ struct kvm_vm_stat { u32 mmu_pde_zapped; u32 mmu_flooded; u32 mmu_recycled; + u32 mmu_cache_miss; u32 remote_tlb_flush; }; -- 1.5.3.7