On 10/15/2009 04:58 PM, Glauber Costa wrote:
The motivation for relative adjustment is when you have a jitter
resistant place to gather timing information (like the kernel, which can
disable interrupts and preemption), then pass it on to kvm without
losing information due to scheduling. For
On Thu, Oct 15, 2009 at 09:46:52AM +0900, Avi Kivity wrote:
On 10/13/2009 09:46 PM, Glauber Costa wrote:
On Tue, Oct 13, 2009 at 03:31:08PM +0300, Avi Kivity wrote:
On 10/13/2009 03:28 PM, Glauber Costa wrote:
Do we want an absolute or relative adjustment?
On 10/13/2009 09:46 PM, Glauber Costa wrote:
On Tue, Oct 13, 2009 at 03:31:08PM +0300, Avi Kivity wrote:
On 10/13/2009 03:28 PM, Glauber Costa wrote:
Do we want an absolute or relative adjustment?
What exactly do you mean?
Absolute adjustment: clock = t
On Mon, Oct 12, 2009 at 10:53:26AM +0200, Avi Kivity wrote:
On 10/06/2009 07:24 PM, Glauber Costa wrote:
When we migrate a kvm guest that uses pvclock between two hosts, we may
suffer a large skew. This is because there can be significant differences
between the monotonic clock of the hosts
On 10/13/2009 03:28 PM, Glauber Costa wrote:
Do we want an absolute or relative adjustment?
What exactly do you mean?
Absolute adjustment: clock = t
Relative adjustment: clock += t
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to
On Tue, Oct 13, 2009 at 03:31:08PM +0300, Avi Kivity wrote:
On 10/13/2009 03:28 PM, Glauber Costa wrote:
Do we want an absolute or relative adjustment?
What exactly do you mean?
Absolute adjustment: clock = t
Relative adjustment: clock += t
The delta is absolute, but the
On 10/06/2009 07:24 PM, Glauber Costa wrote:
When we migrate a kvm guest that uses pvclock between two hosts, we may
suffer a large skew. This is because there can be significant differences
between the monotonic clock of the hosts involved. When a new host with
a much larger monotonic time
When we migrate a kvm guest that uses pvclock between two hosts, we may
suffer a large skew. This is because there can be significant differences
between the monotonic clock of the hosts involved. When a new host with
a much larger monotonic time starts running the guest, the view of time
will be
