From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [question] lots of interrupts injected to vm when pressing some
 key w/o releasing
Date: Thu, 20 Nov 2014 07:19:49 +0100
Message-ID: <546D8805.6040508@redhat.com>
References: <201411201020560455720@sangfor.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: 7bit
Cc: Alex Williamson <alex.williamson@redhat.com>,
	"Zhang, Yang Z" <yang.z.zhang@intel.com>,
	Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>,
	"Michael S.Tsirkin" <mst@redhat.com>,
	Gleb Natapov <gleb@cloudius-systems.com>
To: Zhang Haoyu <zhanghy@sangfor.com>, kvm <kvm@vger.kernel.org>
Return-path: <kvm-owner@vger.kernel.org>
Received: from mx1.redhat.com ([209.132.183.28]:56685 "EHLO mx1.redhat.com"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1750792AbaKTGUT (ORCPT <rfc822;kvm@vger.kernel.org>);
	Thu, 20 Nov 2014 01:20:19 -0500
In-Reply-To: <201411201020560455720@sangfor.com>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>



On 20/11/2014 03:20, Zhang Haoyu wrote:
> Hi all,
> 
> If I press the one of "Insert/Delete/Home/End/PageUp/PageDown/UpArrow/
> DownArrow/LeftArrow/RightArrow" key w/o releasing, then lots of interrupts
> will be injected to vm(win7/win2008), about 8000/s, the system become very slow,
> bringing very bad experience. But the other keys are okay.
> And, linux guest has no this problem.

Do you have a trace for this?  What version of QEMU and what UI backend?

Paolo