Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for fast (de)inflating & fast live migration

From	Dave Hansen <dave.hansen@intel.com>
Newsgroups	linux.kernel
Subject	Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for fast (de)inflating & fast live migration
Date	2016-12-09 06:00 +0100
Message-ID	<sMlrP-7fm-3@gated-at.bofh.it> (permalink)
References	(6 earlier) <sLNJw-2Ce-43@gated-at.bofh.it> <sLPih-3H9-13@gated-at.bofh.it> <sLQxI-4mc-9@gated-at.bofh.it> <sLR0J-4P6-7@gated-at.bofh.it> <sMli9-7cd-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 12/08/2016 08:45 PM, Li, Liang Z wrote:
> What's the conclusion of your discussion? It seems you want some
> statistic before deciding whether to  ripping the bitmap from the
> ABI, am I right?

I think Andrea and David feel pretty strongly that we should remove the
bitmap, unless we have some data to support keeping it.  I don't feel as
strongly about it, but I think their critique of it is pretty valid.  I
think the consensus is that the bitmap needs to go.

The only real question IMNHO is whether we should do a power-of-2 or a
length.  But, if we have 12 bits, then the argument for doing length is
pretty strong.  We don't need anywhere near 12 bits if doing power-of-2.

Thread

[PATCH kernel v5 0/5] Extend virtio-balloon for fast (de)inflating & fast live migration Liang Li <liang.z.li@intel.com> - 2016-11-30 10:00 +0100
  [PATCH kernel v5 5/5] virtio-balloon: tell host vm's unused page info Liang Li <liang.z.li@intel.com> - 2016-11-30 10:00 +0100
    Re: [PATCH kernel v5 5/5] virtio-balloon: tell host vm's unused page  info Dave Hansen <dave.hansen@intel.com> - 2016-11-30 20:20 +0100
      RE: [PATCH kernel v5 5/5] virtio-balloon: tell host vm's unused  page info "Li, Liang Z" <liang.z.li@intel.com> - 2016-12-04 14:20 +0100
        Re: [PATCH kernel v5 5/5] virtio-balloon: tell host vm's unused page  info Dave Hansen <dave.hansen@intel.com> - 2016-12-05 18:30 +0100
          RE: [PATCH kernel v5 5/5] virtio-balloon: tell host vm's unused  page info "Li, Liang Z" <liang.z.li@intel.com> - 2016-12-06 05:50 +0100
  [PATCH kernel v5 2/5] virtio-balloon: define new feature bit and head struct Liang Li <liang.z.li@intel.com> - 2016-11-30 10:00 +0100
  [PATCH kernel v5 4/5] virtio-balloon: define flags and head for host request vq Liang Li <liang.z.li@intel.com> - 2016-11-30 10:00 +0100
  [PATCH kernel v5 1/5] virtio-balloon: rework deflate to add page to a list Liang Li <liang.z.li@intel.com> - 2016-11-30 10:00 +0100
  Re: [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration David Hildenbrand <david@redhat.com> - 2016-12-06 09:50 +0100
    RE: [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration "Li, Liang Z" <liang.z.li@intel.com> - 2016-12-07 14:40 +0100
      Re: [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration Dave Hansen <dave.hansen@intel.com> - 2016-12-07 16:40 +0100
        RE: [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration "Li, Liang Z" <liang.z.li@intel.com> - 2016-12-09 04:10 +0100
      Re: [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration Dave Hansen <dave.hansen@intel.com> - 2016-12-07 16:50 +0100
        Re: [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration David Hildenbrand <david@redhat.com> - 2016-12-07 17:30 +0100
          Re: [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration Dave Hansen <dave.hansen@intel.com> - 2016-12-07 18:00 +0100
            Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for  fast (de)inflating & fast live migration Andrea Arcangeli <aarcange@redhat.com> - 2016-12-07 19:40 +0100
              Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration Dave Hansen <dave.hansen@intel.com> - 2016-12-07 20:00 +0100
                Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for  fast (de)inflating & fast live migration Andrea Arcangeli <aarcange@redhat.com> - 2016-12-07 20:00 +0100
              Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration Dave Hansen <dave.hansen@intel.com> - 2016-12-07 21:00 +0100
                Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for  fast (de)inflating & fast live migration Andrea Arcangeli <aarcange@redhat.com> - 2016-12-07 21:30 +0100
                RE: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for  fast (de)inflating & fast live migration "Li, Liang Z" <liang.z.li@intel.com> - 2016-12-09 05:50 +0100
                Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration Dave Hansen <dave.hansen@intel.com> - 2016-12-09 06:00 +0100
                RE: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for  fast (de)inflating & fast live migration "Li, Liang Z" <liang.z.li@intel.com> - 2016-12-09 06:40 +0100
                Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for  fast (de)inflating & fast live migration Andrea Arcangeli <aarcange@redhat.com> - 2016-12-09 17:50 +0100
      Re: [PATCH kernel v5 0/5] Extend virtio-balloon for fast  (de)inflating & fast live migration David Hildenbrand <david@redhat.com> - 2016-12-07 16:50 +0100

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