> >
> > virtqueue_push(vq, elem, offset); @@ -374,6 +489,7 @@ static
> > uint64_t virtio_balloon_get_features(VirtIODevice *vdev, uint64_t f,
> > VirtIOBalloon *dev = VIRTIO_BALLOON(vdev);
> > f |= dev->host_features;
> > virtio_add_feature(&f, VIRTIO_BALLOON_F_STATS_VQ);
>
On Mon, Jun 13, 2016 at 06:16:43PM +0800, Liang Li wrote:
> The implementation of the current virtio-balloon is not very efficient,
> Bellow is test result of time spends on inflating the balloon to 3GB of
> a 4GB idle guest:
>
> a. allocating pages (6.5%, 103ms)
> b. sending PFNs to host (68.3%,
> +chunk = TARGET_PAGE_SIZE;
> +}
> +}
> +}
> +
> +static void balloon_bulk_pages(ram_addr_t base_pfn, unsigned long
> >>> *bitmap,
> + unsigned long len, int page_shift,
> +bool deflate) { #if defined(__l
On 14.06.2016 16:41, Li, Liang Z wrote:
>>> On 13.06.2016 12:16, Liang Li wrote:
The implementation of the current virtio-balloon is not very
efficient, Bellow is test result of time spends on inflating the
balloon to 3GB of a 4GB idle guest:
a. allocating pages (6.5%, 103m
> > On 13.06.2016 12:16, Liang Li wrote:
> > > The implementation of the current virtio-balloon is not very
> > > efficient, Bellow is test result of time spends on inflating the
> > > balloon to 3GB of a 4GB idle guest:
> > >
> > > a. allocating pages (6.5%, 103ms)
> > > b. sending PFNs to host (6
> Subject: Re: [QEMU 1/7] balloon: speed up inflating & deflating process
>
> On 13.06.2016 12:16, Liang Li wrote:
> > The implementation of the current virtio-balloon is not very
> > efficient, Bellow is test result of time spends on inflating the
> > balloon to 3GB of a 4GB idle guest:
> >
> > a
On 13.06.2016 12:16, Liang Li wrote:
> The implementation of the current virtio-balloon is not very efficient,
> Bellow is test result of time spends on inflating the balloon to 3GB of
> a 4GB idle guest:
>
> a. allocating pages (6.5%, 103ms)
> b. sending PFNs to host (68.3%, 787ms)
> c. address t
The implementation of the current virtio-balloon is not very efficient,
Bellow is test result of time spends on inflating the balloon to 3GB of
a 4GB idle guest:
a. allocating pages (6.5%, 103ms)
b. sending PFNs to host (68.3%, 787ms)
c. address translation (6.1%, 96ms)
d. madvise (19%, 300ms)
It
