Rafael Aquini writes:
> On Thu, Nov 08, 2012 at 09:32:18AM +1030, Rusty Russell wrote:
>> The first one can be delayed, the second one can be delayed if the host
>> didn't ask for VIRTIO_BALLOON_F_MUST_TELL_HOST (qemu doesn't).
>>
>> We could implement a proper request queue for these, and
Rafael Aquini aqu...@redhat.com writes:
On Thu, Nov 08, 2012 at 09:32:18AM +1030, Rusty Russell wrote:
The first one can be delayed, the second one can be delayed if the host
didn't ask for VIRTIO_BALLOON_F_MUST_TELL_HOST (qemu doesn't).
We could implement a proper request queue for these,
On Wed, Nov 07, 2012 at 01:05:52AM -0200, Rafael Aquini wrote:
> Memory fragmentation introduced by ballooning might reduce significantly
> the number of 2MB contiguous memory blocks that can be used within a guest,
> thus imposing performance penalties associated with the reduced number of
>
On Wed, Nov 07, 2012 at 04:11:46PM -0800, Andrew Morton wrote:
> On Thu, 08 Nov 2012 09:32:18 +1030
> Rusty Russell wrote:
>
> > Rafael Aquini writes:
> > > + * virtballoon_migratepage - perform the balloon page migration on
> > > behalf of
> > > + *a compation
On Wed, Nov 07, 2012 at 04:11:46PM -0800, Andrew Morton wrote:
On Thu, 08 Nov 2012 09:32:18 +1030
Rusty Russell ru...@rustcorp.com.au wrote:
Rafael Aquini aqu...@redhat.com writes:
+ * virtballoon_migratepage - perform the balloon page migration on
behalf of
+ *
On Wed, Nov 07, 2012 at 01:05:52AM -0200, Rafael Aquini wrote:
Memory fragmentation introduced by ballooning might reduce significantly
the number of 2MB contiguous memory blocks that can be used within a guest,
thus imposing performance penalties associated with the reduced number of
On Thu, Nov 08, 2012 at 09:32:18AM +1030, Rusty Russell wrote:
> The first one can be delayed, the second one can be delayed if the host
> didn't ask for VIRTIO_BALLOON_F_MUST_TELL_HOST (qemu doesn't).
>
> We could implement a proper request queue for these, and return -EAGAIN
> if the queue
On Wed, Nov 07, 2012 at 04:11:46PM -0800, Andrew Morton wrote:
> On Thu, 08 Nov 2012 09:32:18 +1030
> Rusty Russell wrote:
>
> > Rafael Aquini writes:
> > > + * virtballoon_migratepage - perform the balloon page migration on
> > > behalf of
> > > + *a compation
On Thu, 08 Nov 2012 09:32:18 +1030
Rusty Russell wrote:
> Rafael Aquini writes:
> > + * virtballoon_migratepage - perform the balloon page migration on behalf
> > of
> > + * a compation thread. (called under page lock)
>
> > + if (!mutex_trylock(>balloon_lock))
> >
Rafael Aquini writes:
> + * virtballoon_migratepage - perform the balloon page migration on behalf of
> + *a compation thread. (called under page lock)
> + if (!mutex_trylock(>balloon_lock))
> + return -EAGAIN;
Erk, OK...
> + /* balloon's page
On Wed, Nov 07, 2012 at 11:58:10AM -0800, Andrew Morton wrote:
> On Wed, 7 Nov 2012 01:05:52 -0200
> Rafael Aquini wrote:
>
> > Memory fragmentation introduced by ballooning might reduce significantly
> > the number of 2MB contiguous memory blocks that can be used within a guest,
> > thus
On Wed, 7 Nov 2012 01:05:52 -0200
Rafael Aquini wrote:
> Memory fragmentation introduced by ballooning might reduce significantly
> the number of 2MB contiguous memory blocks that can be used within a guest,
> thus imposing performance penalties associated with the reduced number of
>
On Wed, 7 Nov 2012 01:05:52 -0200
Rafael Aquini aqu...@redhat.com wrote:
Memory fragmentation introduced by ballooning might reduce significantly
the number of 2MB contiguous memory blocks that can be used within a guest,
thus imposing performance penalties associated with the reduced number
On Wed, Nov 07, 2012 at 11:58:10AM -0800, Andrew Morton wrote:
On Wed, 7 Nov 2012 01:05:52 -0200
Rafael Aquini aqu...@redhat.com wrote:
Memory fragmentation introduced by ballooning might reduce significantly
the number of 2MB contiguous memory blocks that can be used within a guest,
Rafael Aquini aqu...@redhat.com writes:
+ * virtballoon_migratepage - perform the balloon page migration on behalf of
+ *a compation thread. (called under page lock)
+ if (!mutex_trylock(vb-balloon_lock))
+ return -EAGAIN;
Erk, OK...
+ /*
On Thu, 08 Nov 2012 09:32:18 +1030
Rusty Russell ru...@rustcorp.com.au wrote:
Rafael Aquini aqu...@redhat.com writes:
+ * virtballoon_migratepage - perform the balloon page migration on behalf
of
+ * a compation thread. (called under page lock)
+ if
On Wed, Nov 07, 2012 at 04:11:46PM -0800, Andrew Morton wrote:
On Thu, 08 Nov 2012 09:32:18 +1030
Rusty Russell ru...@rustcorp.com.au wrote:
Rafael Aquini aqu...@redhat.com writes:
+ * virtballoon_migratepage - perform the balloon page migration on
behalf of
+ *
On Thu, Nov 08, 2012 at 09:32:18AM +1030, Rusty Russell wrote:
The first one can be delayed, the second one can be delayed if the host
didn't ask for VIRTIO_BALLOON_F_MUST_TELL_HOST (qemu doesn't).
We could implement a proper request queue for these, and return -EAGAIN
if the queue fills.
Memory fragmentation introduced by ballooning might reduce significantly
the number of 2MB contiguous memory blocks that can be used within a guest,
thus imposing performance penalties associated with the reduced number of
transparent huge pages that could be used by the guest workload.
Besides
Memory fragmentation introduced by ballooning might reduce significantly
the number of 2MB contiguous memory blocks that can be used within a guest,
thus imposing performance penalties associated with the reduced number of
transparent huge pages that could be used by the guest workload.
Besides
20 matches
Mail list logo
