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From: "Zhang Haoyu" <zhanghy@sangfor.com>
To: "Zhang Haoyu" <zhanghy@sangfor.com>, "kvm" <kvm@vger.kernel.org>
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Alex Williamson" <alex.williamson@redhat.com>,
	"Zhang, Yang Z" <yang.z.zhang@intel.com>,
	"Michael S.Tsirkin" <mst@redhat.com>,
	"Gleb Natapov" <gleb@cloudius-systems.com>
Subject: Re: [question] lots of interrupts injected to vm when pressing some key w/o releasing
Date: Mon, 24 Nov 2014 20:17:46 +0800	[thread overview]
Message-ID: <201411242017440822890@sangfor.com> (raw)
In-Reply-To: 201411201020560455720@sangfor.com

>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.

Sorry for wrong description, the interrupt rate is normal, 
but huge numbers of vmexit induced by PIO were produced.

Thanks,
Zhang Haoyu
>And, linux guest has no this problem.
>
>If I remove the commit of 0bc830b05c667218d703f2026ec866c49df974fc, then the
>problem disappeared, but win7 guest got stuck at booting stage.
>And so strange that If the vm has only one vcpu, then the problem also disappeared.
>
>Any ideas?
>
>Thanks,
>Zhang Haoyu


  parent reply	other threads:[~2014-11-24 12:17 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-20  2:20 [question] lots of interrupts injected to vm when pressing some key w/o releasing Zhang Haoyu
2014-11-20  6:19 ` Paolo Bonzini
2014-11-20  6:59   ` [question] lots of interrupts injected to vm when pressing somekey " Zhang Haoyu
2014-11-20  7:06     ` Gleb Natapov
2014-11-24  8:58       ` [question] lots of interrupts injected to vm when pressingsomekey " Zhang Haoyu
     [not found] ` <A9667DDFB95DB7438FA9D7D576C3D87E0ABEF25B@SHSMSX104.ccr.corp.intel.com>
2014-11-21 22:31   ` [question] lots of interrupts injected to vm when pressing some key " Paolo Bonzini
     [not found]     ` <A9667DDFB95DB7438FA9D7D576C3D87E0ABF0FE3@SHSMSX104.ccr.corp.intel.com>
2014-11-25  9:49       ` Paolo Bonzini
     [not found]         ` <A9667DDFB95DB7438FA9D7D576C3D87E0ABF396A@SHSMSX104.ccr.corp.intel.com>
2014-12-03 15:42           ` Paolo Bonzini
2014-12-15  9:39             ` Zhang Haoyu
2014-12-15  9:40               ` Paolo Bonzini
2014-11-24 12:17 ` Zhang Haoyu [this message]
2014-11-24 12:25   ` Paolo Bonzini
2014-11-25  1:54     ` [question] lots of interrupts injected to vm when pressing somekey " Zhang Haoyu
2014-11-25  7:02       ` Paolo Bonzini
2014-11-25 11:20         ` Zhang Haoyu
2014-11-25 13:52           ` Paolo Bonzini
     [not found]             ` <201411261511537876936@sangfor.com>
     [not found]               ` <A9667DDFB95DB7438FA9D7D576C3D87E0ABF2A95@SHSMSX104.ccr.corp.intel.com>
2014-11-27  7:20                 ` [question] lots of interrupts injected to vm when pressing some key " Zhang Haoyu
     [not found]                   ` <A9667DDFB95DB7438FA9D7D576C3D87E0ABF2C24@SHSMSX104.ccr.corp.intel.com>
2014-11-27  8:54                     ` Zhang Haoyu
2014-11-28  8:27                   ` Wanpeng Li
2014-11-28  9:44                     ` Zhang Haoyu

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