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Groups > linux.kernel > #1703800
| From | Wei Wang <wei.w.wang@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v13 4/5] mm: support reporting free page blocks |
| Date | 2017-08-04 11:00 +0200 |
| Message-ID | <uaGCB-4L1-13@gated-at.bofh.it> (permalink) |
| References | (6 earlier) <uaqet-1Q1-1@gated-at.bofh.it> <uavxw-5BE-11@gated-at.bofh.it> <uaFGx-4bb-7@gated-at.bofh.it> <uaFZU-4wN-19@gated-at.bofh.it> <uaG9z-4A4-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 08/04/2017 04:24 PM, Michal Hocko wrote: > >> For our use case, the callback just puts the reported page >> block to the ring, then returns. If the ring is full as the host >> is busy, then I think it should skip this one, and just return. >> Because: >> A. This is an optimization feature, losing a couple of free >> pages to report isn't that important; >> B. In reality, I think it's uncommon to see this ring getting >> full (I didn't observe ring full in the tests), since the host >> (consumer) is notified to take out the page block right >> after it is added. > I thought you only updated a pre allocated bitmat... Anyway, I cannot > comment on this part much as I am not familiar with your usecase. > Actually the bitmap is in the hypervisor (host). The callback puts the (pfn,size) on a ring which is shared with the hypervisor, then the hypervisor takes that info from the ring and updates that bitmap. Best, Wei
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[PATCH v13 0/5] Virtio-balloon Enhancement Wei Wang <wei.w.wang@intel.com> - 2017-08-03 08:50 +0200
[PATCH v13 3/5] virtio-balloon: VIRTIO_BALLOON_F_SG Wei Wang <wei.w.wang@intel.com> - 2017-08-03 09:00 +0200
Re: [PATCH v13 3/5] virtio-balloon: VIRTIO_BALLOON_F_SG "Michael S. Tsirkin" <mst@redhat.com> - 2017-08-03 16:30 +0200
RE: [PATCH v13 3/5] virtio-balloon: VIRTIO_BALLOON_F_SG "Wang, Wei W" <wei.w.wang@intel.com> - 2017-08-03 17:20 +0200
Re: [PATCH v13 3/5] virtio-balloon: VIRTIO_BALLOON_F_SG "Michael S. Tsirkin" <mst@redhat.com> - 2017-08-03 18:00 +0200
[PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-03 09:00 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Michal Hocko <mhocko@kernel.org> - 2017-08-03 11:20 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-03 12:40 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Michal Hocko <mhocko@kernel.org> - 2017-08-03 12:50 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-03 13:30 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Michal Hocko <mhocko@kernel.org> - 2017-08-03 13:30 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-03 14:10 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Michal Hocko <mhocko@kernel.org> - 2017-08-03 14:50 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-03 15:20 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Michal Hocko <mhocko@kernel.org> - 2017-08-03 16:00 +0200
RE: [PATCH v13 4/5] mm: support reporting free page blocks "Wang, Wei W" <wei.w.wang@intel.com> - 2017-08-03 17:30 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks "Michael S. Tsirkin" <mst@redhat.com> - 2017-08-03 23:10 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Michal Hocko <mhocko@kernel.org> - 2017-08-04 10:00 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-04 10:20 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Michal Hocko <mhocko@kernel.org> - 2017-08-04 10:30 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-04 11:00 +0200
Re: [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-08 08:20 +0200
Re: [virtio-dev] Re: [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-08 08:40 +0200
Re: [virtio-dev] Re: [PATCH v13 4/5] mm: support reporting free page blocks Michal Hocko <mhocko@kernel.org> - 2017-08-10 09:10 +0200
Re: [virtio-dev] Re: [PATCH v13 4/5] mm: support reporting free page blocks Wei Wang <wei.w.wang@intel.com> - 2017-08-10 09:40 +0200
Re: [virtio-dev] Re: [PATCH v13 4/5] mm: support reporting free page blocks Michal Hocko <mhocko@kernel.org> - 2017-08-10 10:00 +0200
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