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From: David Hildenbrand <david@redhat.com>
To: Wei Wang <wei.w.wang@intel.com>,
	virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org,
	qemu-devel@nongnu.org, linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org, linux-mm@kvack.org
Cc: Liang Li <liang.z.li@intel.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Mel Gorman <mgorman@techsingularity.net>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Cornelia Huck <cornelia.huck@de.ibm.com>,
	Amit Shah <amit.shah@redhat.com>,
	Dave Hansen <dave.hansen@intel.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Liang Li <liliang324@gmail.com>
Subject: Re: [PATCH v7 kernel 5/5] This patch contains two parts:
Date: Mon, 6 Mar 2017 14:23:02 +0100	[thread overview]
Message-ID: <d66a8e86-0ead-90fd-b943-f69449e78349@redhat.com> (raw)
In-Reply-To: <1488519630-89058-6-git-send-email-wei.w.wang@intel.com>

Am 03.03.2017 um 06:40 schrieb Wei Wang:
> From: Liang Li <liang.z.li@intel.com>

I'd prefer to split this into two parts then and to create proper subjects.

If I remember correctly, the general concept was accepted by most reviewers.

> 
> One is to add a new API to mm go get the unused page information.
> The virtio balloon driver will use this new API added to get the
> unused page info and send it to hypervisor(QEMU) to speed up live
> migration. During sending the bitmap, some the pages may be modified
> and are used by the guest, this inaccuracy can be corrected by the
> dirty page logging mechanism.
> 
> One is to add support the request for vm's unused page information,
> QEMU can make use of unused page information and the dirty page
> logging mechanism to skip the transportation of some of these unused
> pages, this is very helpful to reduce the network traffic and speed
> up the live migration process.

-- 
Thanks,

David

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  reply	other threads:[~2017-03-06 13:23 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-03  5:40 [PATCH v7 kernel 0/5] Extend virtio-balloon for fast (de)inflating & fast live migration Wei Wang
2017-03-03  5:40 ` [PATCH v7 kernel 1/5] virtio-balloon: rework deflate to add page to a list Wei Wang
2017-03-03  5:40 ` [PATCH v7 kernel 2/5] virtio-balloon: VIRTIO_BALLOON_F_CHUNK_TRANSFER Wei Wang
2017-03-08  4:01   ` Michael S. Tsirkin
2017-03-09  7:12     ` Wei Wang
2017-03-03  5:40 ` [PATCH v7 kernel 3/5] virtio-balloon: implementation of VIRTIO_BALLOON_F_CHUNK_TRANSFER Wei Wang
2017-03-08  4:01   ` Michael S. Tsirkin
2017-03-10 10:02     ` [virtio-dev] " Wei Wang
2017-03-10 13:26       ` David Hildenbrand
2017-03-10 15:37       ` Michael S. Tsirkin
2017-03-09 14:14   ` Matthew Wilcox
2017-03-10 11:37     ` Wei Wang
2017-03-10 15:58       ` Michael S. Tsirkin
2017-03-10 17:11         ` Matthew Wilcox
2017-03-10 19:10           ` Michael S. Tsirkin
2017-03-10 21:18             ` Matthew Wilcox
2017-03-10 19:35           ` Michael S. Tsirkin
2017-03-10 21:25             ` Matthew Wilcox
2017-03-12  0:05               ` Michael S. Tsirkin
2017-03-11 11:59           ` Wei Wang
2017-03-11 14:09             ` Matthew Wilcox
2017-03-12  1:59               ` Wang, Wei W
2017-03-12  4:04                 ` Michael S. Tsirkin
2017-03-13 12:41                   ` Wang, Wei W
2017-03-12  0:07             ` Michael S. Tsirkin
2017-03-03  5:40 ` [PATCH v7 kernel 4/5] virtio-balloon: define flags and head for host request vq Wei Wang
2017-03-08  4:02   ` Michael S. Tsirkin
2017-03-03  5:40 ` [PATCH v7 kernel 5/5] This patch contains two parts: Wei Wang
2017-03-06 13:23   ` David Hildenbrand [this message]
2017-03-09  7:04     ` Wei Wang

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