>
> On 12/08/2015 23:04, Liang Li wrote:
> > @@ -1008,8 +1009,10 @@ static void *migration_thread(void *opaque)
> > }
> >
> > qemu_mutex_lock_iothread();
> > +end_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
> > +qemu_savevm_state_cancel();
> > +
>
> You can remove the qemu_sa
On 12/08/2015 23:04, Liang Li wrote:
> @@ -1008,8 +1009,10 @@ static void *migration_thread(void *opaque)
> }
>
> qemu_mutex_lock_iothread();
> +end_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
> +qemu_savevm_state_cancel();
> +
You can remove the qemu_savevm_state_cancel()
Because of the patch 3ea3b7fa9af067982f34b of kvm, now the migration_end()
is a time consuming operation, which takes about dozens of milliseconds, and
will prolong VM downtime. Such an operation should be done after migration
completion.
For a VM with 8G RAM, this patch can reduce the VM downtime
