On Tue, Sep 11, 2012 at 12:10:18AM +0300, Michael S. Tsirkin wrote:
On the plus side, having an exit taken here on each page turns out to
be relatively cheap, as the vmexit from the page fault should be
faster to process as it is fully handled within the host kernel.
Perhaps some
On Tue, Oct 30, 2012 at 8:29 AM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Sep 11, 2012 at 12:10:18AM +0300, Michael S. Tsirkin wrote:
On the plus side, having an exit taken here on each page turns out to
be relatively cheap, as the vmexit from the page fault should be
faster to
Mike Waychison mi...@google.com writes:
On Mon, Sep 10, 2012 at 3:59 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Mon, Sep 10, 2012 at 01:37:06PM -0400, Mike Waychison wrote:
On Mon, Sep 10, 2012 at 5:05 AM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Jun 26, 2012 at 01:32:58PM
On Tue, Jun 26, 2012 at 01:32:58PM -0700, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to the host. The communication
(outside of target counts) is one way--the guest notifies the host when
it adds a page to
On Mon, Sep 10, 2012 at 5:05 AM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Jun 26, 2012 at 01:32:58PM -0700, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to the host. The communication
(outside of
On 09/10/2012 01:37 PM, Mike Waychison wrote:
On Mon, Sep 10, 2012 at 5:05 AM, Michael S. Tsirkin m...@redhat.com wrote:
Also can you pls answer Avi's question?
How is overcommit managed?
Overcommit in our deployments is managed using memory cgroups on the
host. This allows us to have very
On Mon, Sep 10, 2012 at 2:04 PM, Rik van Riel r...@redhat.com wrote:
On 09/10/2012 01:37 PM, Mike Waychison wrote:
On Mon, Sep 10, 2012 at 5:05 AM, Michael S. Tsirkin m...@redhat.com
wrote:
Also can you pls answer Avi's question?
How is overcommit managed?
Overcommit in our deployments
On Mon, Sep 10, 2012 at 01:37:06PM -0400, Mike Waychison wrote:
On Mon, Sep 10, 2012 at 5:05 AM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Jun 26, 2012 at 01:32:58PM -0700, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that
On Mon, Sep 10, 2012 at 3:59 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Mon, Sep 10, 2012 at 01:37:06PM -0400, Mike Waychison wrote:
On Mon, Sep 10, 2012 at 5:05 AM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Jun 26, 2012 at 01:32:58PM -0700, Frank Swiderski wrote:
This
On Mon, Sep 10, 2012 at 04:49:40PM -0400, Mike Waychison wrote:
On Mon, Sep 10, 2012 at 3:59 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Mon, Sep 10, 2012 at 01:37:06PM -0400, Mike Waychison wrote:
On Mon, Sep 10, 2012 at 5:05 AM, Michael S. Tsirkin m...@redhat.com
wrote:
On Tue,
Paolo Bonzini pbonz...@redhat.com writes:
Il 02/07/2012 02:29, Rusty Russell ha scritto:
VIRTIO_BALLOON_F_MUST_TELL_HOST
implies you should tell the host (eventually). I don't know if any
implementations actually care though.
This is indeed broken, because it is a negative feature: it tells
Il 02/07/2012 02:29, Rusty Russell ha scritto:
VIRTIO_BALLOON_F_MUST_TELL_HOST
implies you should tell the host (eventually). I don't know if any
implementations actually care though.
This is indeed broken, because it is a negative feature: it tells you
that implicit deflate is _not_
On 06/26/2012 11:32 PM, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to the host. The communication
(outside of target counts) is one way--the guest notifies the host when
it adds a page to the page cache,
On Tue, Jun 26, 2012 at 01:32:58PM -0700, Frank Swiderski wrote:
+static void fill_balloon(struct virtio_balloon *vb, size_t num)
+{
+ int err;
+
+ /* We can only do one array worth at a time. */
+ num = min(num, ARRAY_SIZE(vb-pfns));
+
+ for (vb-num_pfns = 0; vb-num_pfns
On Tue, 26 Jun 2012 16:21:58 -0700, Frank Swiderski f...@google.com wrote:
On Tue, Jun 26, 2012 at 2:47 PM, Michael S. Tsirkin m...@redhat.com wrote:
Let's assume it's a feature bit: how would you
formulate what the feature does *from host point of view*?
In this implementation, the host
On Tue, Jun 26, 2012 at 04:21:58PM -0700, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 2:47 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Jun 26, 2012 at 02:31:26PM -0700, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 1:40 PM, Rik van Riel r...@redhat.com wrote:
On 06/26/2012
On Tue, Jun 26, 2012 at 04:45:36PM -0700, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 2:45 PM, Rik van Riel r...@redhat.com wrote:
On 06/26/2012 05:31 PM, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 1:40 PM, Rik van Rielr...@redhat.com wrote:
The code looks good to me, my only
On (Tue) 26 Jun 2012 [13:32:58], Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to the host. The communication
(outside of target counts) is one way--the guest notifies the host when
it adds a page to the page
On Wed, 27 Jun 2012 00:41:06 +0300, Michael S. Tsirkin m...@redhat.com
wrote:
On Tue, Jun 26, 2012 at 01:32:58PM -0700, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to the host. The communication
(outside
On Tue, Jun 26, 2012 at 7:56 PM, Rusty Russell ru...@rustcorp.com.au wrote:
On Wed, 27 Jun 2012 00:41:06 +0300, Michael S. Tsirkin m...@redhat.com
wrote:
On Tue, Jun 26, 2012 at 01:32:58PM -0700, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
On Wed, Jun 27, 2012 at 08:48:55AM -0700, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 7:56 PM, Rusty Russell ru...@rustcorp.com.au wrote:
On Wed, 27 Jun 2012 00:41:06 +0300, Michael S. Tsirkin m...@redhat.com
wrote:
On Tue, Jun 26, 2012 at 01:32:58PM -0700, Frank Swiderski wrote:
On Wed, Jun 27, 2012 at 9:06 AM, Michael S. Tsirkin m...@redhat.com wrote:
On Wed, Jun 27, 2012 at 08:48:55AM -0700, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 7:56 PM, Rusty Russell ru...@rustcorp.com.au wrote:
On Wed, 27 Jun 2012 00:41:06 +0300, Michael S. Tsirkin m...@redhat.com
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to the host. The communication
(outside of target counts) is one way--the guest notifies the host when
it adds a page to the page cache, allowing the host to madvise(2) with
MADV_DONTNEED.
On 06/26/2012 04:32 PM, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to the host. The communication
(outside of target counts) is one way--the guest notifies the host when
it adds a page to the page cache,
On Tue, Jun 26, 2012 at 1:40 PM, Rik van Riel r...@redhat.com wrote:
On 06/26/2012 04:32 PM, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to the host. The communication
(outside of target counts) is one
On Tue, Jun 26, 2012 at 01:32:58PM -0700, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to the host. The communication
(outside of target counts) is one way--the guest notifies the host when
it adds a page to
On 06/26/2012 05:31 PM, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 1:40 PM, Rik van Rielr...@redhat.com wrote:
The code looks good to me, my only worry is the
code duplication. We now have 5 balloon drivers,
for 4 hypervisors, all implementing everything
from scratch...
Do you have any
On Tue, Jun 26, 2012 at 02:31:26PM -0700, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 1:40 PM, Rik van Riel r...@redhat.com wrote:
On 06/26/2012 04:32 PM, Frank Swiderski wrote:
This implementation of a virtio balloon driver uses the page cache to
store pages that have been released to
On Tue, Jun 26, 2012 at 2:47 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Jun 26, 2012 at 02:31:26PM -0700, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 1:40 PM, Rik van Riel r...@redhat.com wrote:
On 06/26/2012 04:32 PM, Frank Swiderski wrote:
This implementation of a virtio
On Tue, Jun 26, 2012 at 2:45 PM, Rik van Riel r...@redhat.com wrote:
On 06/26/2012 05:31 PM, Frank Swiderski wrote:
On Tue, Jun 26, 2012 at 1:40 PM, Rik van Rielr...@redhat.com wrote:
The code looks good to me, my only worry is the
code duplication. We now have 5 balloon drivers,
for 4
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